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1 - Development of hybrid electrodeposition/slurry diffusion aluminide coatings on Ni-based superalloy with enhanced hot corrosion resistance https://jourcc.com/index.php/jourcc/article/view/jcc311 10.29252/jcc.3.1.1 1 Ni/Co-modified aluminide coatings were prepared on Hastelloy-X superalloy by a combined process of electrodeposition and slurry aluminizing. In this regard, pure layers of Ni and Ni-50wt.%Co were initially applied via electrodeposition process and successive aluminization was carried out by a slurry technique. The microstructural and chemical composition characterization of the specimens revealed that a compact and dense aluminide coating was formed with two-layered structure containing the outer Al-rich b phase and inner interdiffusion zone. Moreover, the presence of pre-electrodeposited layers inhibited the outward diffusion flux of elements from the substrate and effectively suppressed the formation of Kirkendall pores. The hot corrosion studies of the obtained coatings indicated that the addition of a pre-electrodeposited layer could enhance the high-temperature corrosion performance of the coatings when exposed to sulfate salt. 0 - 1 8 - - Ali Zakeri Department of Materials Engineering, Tarbiat Modares University Iran alizakeri@modares.ac.ir - - Mohammad Reza Masoumi Balashadehi Department of Materials Engineering, Tarbiat Modares University Iran info@jourcc.com - - Alireza Sabour Rouh Aghdam Department of Materials Engineering, Tarbiat Modares University Iran info@jourcc.com Diffusion Electrodeposition Slurry Aluminide Hot corrosion [1] T.M. Pollock, S. Tin, Nickel-based superalloys for advanced turbine engines: Chemistry, microstructure, and properties,Journal of Propulsion and Power 22 (2006) 361–374. ##[2] R.C. Reed, The superalloys: fundamentals and applications, Cambridge university press, 2008. ##[3] M. Vajdi, F. Sadegh Moghanlou, F. Sharifianjazi, M. Shahedi Asl, M. 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Aghdam, Impact of MCrAlY feedstock powder modification by high-energy ball milling on the microstructure and high-temperature oxidation performance of HVOF-sprayed coatings, Surface and Coatings Technology (2020) 125935. ##[8] A. Zakeri, E. Bahmani, A. Sabour Rouh Aghdam, B. Saeedi, A comparative study on the microstructure evolution of conventional and nanostructured MCrAlY powders at high-temperature, Surface and Coatings Technology 389 (2020) 125629. ##[9] A. Zakeri, F. Ghadami, A. Sabour Rouhaghdam, B. Saeedi, Study on production of modified MCrAlY powder with nano oxide dispersoids as HVOF thermal spray feedstock using mechanical milling, Materials Research Express 7 (2019) 015030. ##[10] M. Masoumi Balashadehi, P. Nourpour, A. Sabour Rouh Aghdam, M.H. Allahyarzadeh, A. Heydarzadeh, M. Hamdi, The formation, microstructure and hot corrosion behaviour of slurry aluminide coating modified by Ni/Ni-Co electrodeposited layer on Ni-base superalloy, Surface and Coatings Technology 402 (2020) 126283. ##[11] F. Ghadami, A. Zakeri, A.S.R. Aghdam, R. Tahmasebi, Structural characteristics and high-temperature oxidation behavior of HVOF sprayed nano-CeO2 reinforced NiCoCrAlY nanocomposite coatings, Surface and Coatings Technology 373 (2019) 7–16. ##[12] F. Ghadami, A. Sabour Rouh Aghdam, A. Zakeri, B. Saeedi, P. Tahvili, Synergistic effect of CeO2 and Al2O3 nanoparticle dispersion on the oxidation be-havior of MCrAlY coatings deposited by HVOF, Ceramics International 46 (2020) 4556–4567. ##[13] M. Bai, L. Reddy, T. Hussain, Experimental and thermodynamic investigations on the chlorine-induced corrosion of HVOF thermal sprayed NiAl coatings and 304 stainless steels at 700 °C, Corrosion Science 135 (2018) 147–157. ##[14] M. Bai, B. Song, L. Reddy, T. Hussain, Preparation of MCrAlY–Al2O3 Composite Coatings with Enhanced Oxidation Resistance through a Novel Powder Manufacturing Process, Journal of Thermal Spray Technology 28 (2019) 433–443. ##[15] H. Chi, M.A. Pans, M. Bai, C. Sun, T. Hussain, W. Sun, Y. Yao, J. Lyu, H. Liu, Experimental investigations on the chlorine-induced corrosion of HVOF thermal sprayed Stellite-6 and NiAl coatings with fluidised bed biomass/anthracite combustion systems, Fuel 288 (2021) 119607. ##[16] A. Abuchenari, H. Ghazanfari, M. Siavashi, M. Sabetzadeh, S. Talebi, Z. Karami Chemeh, A. Jamavari, A review on development and application of self-healing thermal barrier composite coatings, Journal of Composites and Compounds 2 (2020) 147–154. ##[17] A. Firouzi, K. Shirvani, The structure and high temperature corrosion performance of medium-thickness aluminide coatings on nickel-based superalloy GTD-111, Corrosion Science 52 (2010) 3579–3585. ##[18] M.C. Galetz, X. Montero, M. Mollard, M. Günthner, F. Pedraza, M. Schütze, The role of combustion synthesis in the formation of slurry aluminization, Intermetallics 44 (2014) 8–17. ##[19] Z.D. Xiang, J.S. Burnell-Gray, P.K. Datta, Aluminide coating formation on nickel-base superalloys by pack cementa-tion process, Journal of Materials Science 36 (2001) 5673–5682. ##[20] Y. Wang, J. Wang, H. Hu, J. Meng, X. Zhao, Effect of Y2O3 content in the pack mixtures on the cyclic-oxidation of Y2O3-modified low temperature aluminide coatings on 309 stainless steel, Vacuum 158 (2018) 101–112. ##[21] G.W. Goward, Progress in coat-ings for gas turbine airfoils, Surface and Coatings Technology 108–109 (1998) 73–79. ##[22] T. Kepa, F. Pedraza, F. Rouillard, Intermetallic formation of Al-Fe and Al-Ni phases by ultrafast slurry aluminization (flash aluminizing), Surface and Coatings Technology 397 (2020) 126011. ##[23] J.T. Bauer, X. Montero, M.C. Galetz, Fast heat treatment methods for al slurry diffusion coatings on alloy 800 prepared in air, Surface and Coatings Technology 381 (2020) 125140. ##[24] Q.X. Fan, S.M. Jiang, H.J. Yu, J. Gong, C. Sun, Microstruc-ture and hot corrosion behaviors of two co modified aluminide coatings on a ni-based superalloy at 700 c, Ap-plied Surface Science 311 (2014) 214–223. ##[25] M. Zagula-Yavorska, J. Morgiel, J. Romanowska, J. Sieniawski, TEM analysis of the hafnium-doped aluminide coating deposited on Inconel 100 superalloy, Vacu-um. 116 (2015) 115–120. ##[26] M. Zagula-Yavorska, J. Morgiel, J. Romanowska, J. Sieniawski, Nanoparticles in zirconium-doped aluminide coatings, Materials Letters 139 (2015) 50–54. ##[27] W. Ren, C. Xiao, Q. Li, J. Song, L. He, C. Cao, Microstructure evolution of cobalt aluminide coating on nickel-based superalloys during exposure at 1050 °c, Vacuum. 106 (2014) 39–45. ##[28] S.A. Azarmehr, K. Shirvani, A. Solimani, M. Schütze, M.C. Galetz, Effects of Pt and Si on the low temperature hot corrosion of aluminide coatings exposed to Na2SO4 -60 mol% V2O5 salt, Surface and Coatings Technology 362 (2019) 252–261. ##[29] Y. Zhou, X. Zhao, C. Zhao, W. Hao, X. Wang, P. Xiao, The oxidation performance for Zr-doped nickel aluminide coating by com-posite electrodepositing and pack cementation, Corrosion Science 123 (2017) 103–115. ##[30] Y. Wang, Y. Zhang, G. Liang, Q. Ding, Low temperature formation of aluminide coatings on the electrodeposited nanocrys-talline Ni and its oxidation resistance with La2O3/CeO2 nanoparticle dispersion, Vacuum 173 (2020) 109148. ##[31] Y.B. Zhou, H.T. Hu, H.J. Zhang, Oxidation behavior of aluminide coatings on carbon steel with and without electrodeposited Ni-CeO2 film by low-temperature pack cementation, Vacuum 86 (2011) 210–217. ##[32] M.H. Allahyarzadeh, M. Aliofkhazraei, A.S. Rouhaghdam, ELectrodeposition on superalloy substrates: A review, Surface Review and Letters 23 (2016) 1630001. ##[33] A. Karimzadeh, A.S. Rouhaghdam, Effect of Nickel Pre-Plated on Microstructure and Oxidation Behavior of Aluminized AISI 316 Stainless Steel, Mate-rials and Manufacturing Processes 31 (2016) 87–94. ##[34] M. Safari, F. Shahriari Nogorani, Formation mecha-nism of high activity aluminide coating on Ni-CeO2 coated Rene 80 alloy, Surface and Coatings Technology 329 (2017) 218–223. ##[35] M. Qiao, C. Zhou, Codeposition of Co-Al-Y on nickel base superalloys by pack cementation process, Corrosion Science 75 (2013) 454–460. ##[36] M. Qiao, C. Zhou, Hot corrosion behavior of Co modified NiAl coating on nickel base superalloys, Corrosion Science 63 (2012) 239–245. ##[37] S. Mahini, S. Khameneh Asl, T. Rabizadeh, H. Aghajani, Effects of the pack Al content on the microstructure and hot cor-rosion behavior of aluminide coatings applied on Inconel-600, Surface and Coatings Technology 397 (2020) 125949. ##[38] D. He, H. Guan, X. Sun, X. Jiang, Manufacturing, structure and high temperature corrosion of palladium-modified aluminide coatings on nickel-base superalloy M38, Thin Solid Films. 376 (2000) 144–151. ##[39] M. Salehi Doolabi, B. Ghasemi, S.K. Sadrnezhaad, A. Habibollahzadeh, K. Jafarzadeh, Hot corrosion behavior and near-surface microstructure of a “low-temperature high-activity Cr-aluminide” coating on inconel 738LC exposed to Na2SO4, Na2SO4 + V2O5 and Na2SO4 + V2O5 + NaCl at 900 °C, Corrosion Science 128 (2017) 42–53. ##[40] M.N. Task, B. Gleeson, F.S. Pettit, G.H. Meier, Compositional effects on the Type I hot corrosion of β-NiAl alloys, Surface and Coatings Technology 206 (2011) 1552–1557. ##[41] C.A. Schneider, W.S. Rasband, K.W. Eliceiri, NIH Image to ImageJ: 25 years of image analysis, Nature Methods 9 (2012) 671–675. ##[42] R. Jafari, E. Sadeghi, High-temperature corrosion performance of HVAF-sprayed NiCr, NiAl, and NiCrAlY coatings with alkali sulfate/chloride exposed to ambient air, Corrosion Science 160 (2019). ##[43] P.D.F. ICDD, International Centre for Diffraction Data, Microscopy Today 21 (2013) 8–8. ##[44] A. Brenner, Electrodeposition of alloys: principles and practice, Elsevier, 2013. ##[45] M. Ferdosi Heragh, S. Eskandarinezhad, A. Dehghan, Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects, Journal of Composites and Compounds 2 (2020) 123–128. ##[46] E. Bahmani, A. Zakeri, A. Sabour Rouh Aghdam, A fast and efficient approach to fabricate tarnish-resistant nanocrystalline Ag-Ge thin films by direct current electrodeposition, Materials Letters 274 (2020) 127991. ##[47] E. Bahmani, A. Zakeri, A. Sabour Rouh Aghdam, Microstructural analysis and surface studies on Ag-Ge alloy coatings prepared by electrodeposition technique, Journal of Materials Science (2021) 1–21. ##[48] A. Karimzadeh, A.S. Rouhaghdam, M. Aliofkhazraei, R. Miresmaeili, Sliding wear behavior of Ni–Co–P multilayer coatings electrodeposited by pulse reverse method, Tribology International 141 (2020) 105914. ##[49] A. Karimzadeh, M. Aliofkhazraei, F.C. Walsh, A review of electrodeposited Ni-Co alloy and composite coatings: Microstructure, properties and applications, Surface and Coatings Technology 372 (2019) 463–498. ##[50] M.S. Safavi, M. Tanhaei, M.F. Ahmadipour, R.G. Adli, S. Mahdavi, F.C. Walsh, Electrodeposited Ni-Co alloy-particle composite coatings: a comprehensive review, Surface and Coatings Technology 382 (2020) 125153. ##[51] R.D. Liu, S.M. Jiang, H.J. Yu, J. Gong, C. 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1 - Effect of powder manufacturing process on characteristics of nanostructured MCrAlY coatings: dry vs. wet ball milling https://jourcc.com/index.php/jourcc/article/view/jcc312 10.29252/jcc.3.1.2 1 Metallic MCrAlY coatings have been widely utilized to protect the high-temperature materials operating in aggressive conditions of gas turbines. However, with more demands on the turbine inlet temperature rise for efficiency gains, there is a need to further improve the high-temperature performance of the MCrAlY coatings. A possible way to meet this challenge is by microstructure modification. The aim of this study is to produce nanocrystalline MCrAlY powders via wet and dry mechanical milling techniques and deposit the obtained feedstock powders by high-velocity oxygen fuel (HVOF) spraying method. A comprehensive characterization and comparison of the different powder processing techniques and the corresponding coatings were studied. It was established that the nano-scaled MCrAlY feedstock powder with low contamination levels could be achieved by mechanical milling. Moreover, the powder samples were well-deposited by the HVOF process and the correlation between powder properties and coating characteristics was investigated. 0 - 9 17 - - Ali Zakeri Department of Materials Engineering, Tarbiat Modares University Iran alizakeri@modares.ac.ir - - Pouya Tahvili Department of Materials Engineering, Tarbiat Modares University Iran info@jourcc.com - - Elnaz Bahmani Department of Materials Engineering, Tarbiat Modares University Iran info@jourcc.com - - Alireza Sabour Rouh Aghdam Department of Materials Engineering, Tarbiat Modares University Iran info@jourcc.com MCrAlY Ball milling Thermal spray HVOF [1] N.P. Padture, M. Gell, E.H. Jordan, Thermal barrier coatings for gas-turbine engine applications, Science (80). 296 (2002) 280–284. ##[2] R.C. Reed, The superalloys: fundamentals and applications, Cambridge university press, 2008. ##[3] F. Ghadami, A. Zakeri, A.S.R. Aghdam, R. Tahmasebi, Structural characteristics and high-temperature oxidation behavior of HVOF sprayed nano-CeO2 reinforced NiCoCrAlY nanocomposite coatings, Surf. Coatings Technol. 373 (2019) 7–16. ##[4] F. Ghadami, A. Sabour Rouh Aghdam, A. Zakeri, B. Saeedi, P. Tahvili, Synergistic effect of CeO2 and Al2O3 nanoparticle dispersion on the oxidation behavior of MCrAlY coatings deposited by HVOF, Ceram. Int. 46 (2020) 4556–4567. ##[5] M. Bai, H. Jiang, Y. Chen, Y. Chen, C. Grovenor, X. Zhao, P. Xiao, Migration of sulphur in thermal barrier coatings during heat treatment, Mater. Des. 97 (2016) 364–371. ##[6] M. Bai, Fabrication and Characterization of Thermal Barrier Coatings, (2015) 182. https://www.researchgate.net/publication/287347007_Fabrication_and_characterization_of_thermal_barrier_coatings. ##[7] T.M. Pollock, S. Tin, Nickel-based superalloys for advanced turbine engines: Chemistry, microstructure, and properties, J. Propuls. Power. 22 (2006) 361–374. ##[8] W. Xia, X. Zhao, L. Yue, Z. Zhang, Microstructural evolution and creep mechanisms in Ni-based single crystal superalloys: A review, J. Alloys Compd. 819 (2020) 152954. ##[9] M. Masoumi Balashadehi, P. Nourpour, A. Sabour Rouh Aghdam, M.H. Allahyarzadeh, A. Heydarzadeh, M. Hamdi, The formation, microstructure and hot corrosion behaviour of slurry aluminide coating modified by Ni/Ni-Co electrodeposited layer on Ni-base superalloy, Surf. Coatings Technol. 402 (2020) 126283. ##[10] A. Zakeri, E. Bahmani, A. Sabour Rouh Aghdam, B. Saeedi, M. Bai, A study on the effect of nano-CeO2 dispersion on the characteristics of thermally-grown oxide (TGO) formed on NiCoCrAlY powders and coatings during isothermal oxidation, J. Alloys Compd. 835 (2020) 155319. ##[11] B. Song, M. Bai, K.T. Voisey, T. Hussain, Role of Oxides and Porosity on High-Temperature Oxidation of Liquid-Fueled HVOF Thermal-Sprayed Ni50Cr Coatings, J. Therm. Spray Technol. 26 (2017) 554–568. ##[12] C. Liu, Y. Chen, L. Qiu, H. Liu, M. Bai, P. Xiao, The al-enriched γ’-Ni3Al-base bond coat for thermal barrier coating applications, Corros. Sci. 167 (2020) 108523. ##[13] A. Zakeri, E. Bahmani, A. Sabour Rouh Aghdam, B. Saeedi, A comparative study on the microstructure evolution of conventional and nanostructured MCrAlY powders at high-temperature, Surf. Coatings Technol. 389 (2020) 125629. ##[14] A. Zakeri, F. Ghadami, A. Sabour Rouhaghdam, B. Saeedi, Study on production of modified MCrAlY powder with nano oxide dispersoids as HVOF thermal spray feedstock using mechanical milling, Mater. Res. Express. 7 (2019) 015030. ##[15] W. Brandl, D. Toma, H.J. Grabke, The characteristics of alumina scales formed on HVOF-sprayed MCrAlY coatings, Surf. Coatings Technol. 108–109 (1998) 10–15. ##[16] B. Saeedi, A. 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Karaoglanli, Comparison of Oxidation Behavior of Shot-Peened Plasma Spray Coatings with Cold Gas Dynamic Spray Coatings, Oxid. Met. 88 (2017) 121–132. ##[22] C. Suryanarayana, Mechanical alloying and milling, Prog. Mater. Sci. 46 (2001) 1–184. ##[23] M. Tahari, M. Shamanian, M. Salehi, Microstructural and morphological evaluation of MCrAlY/YSZ composite produced by mechanical alloying method, J. Alloys Compd. 525 (2012) 44–52. ##[24] L. Ajdelsztajn, J.A. Picas, G.E. Kim, F.L. Bastian, J. Schoenung, V. Provenzano, Oxidation behavior of HVOF sprayed nanocrystalline NiCrAlY powder, Mater. Sci. Eng. A. 338 (2002) 33–43. ##[25] J.A. Picas, A. Forn, L. Ajdelsztajn, J. Schoenung, Nanocrystalline NiCrAlY powder synthesis by mechanical cryomilling, Powder Technol. 148 (2004) 20–23. ##[26] L. Ajdelsztajn, F. Tang, G.E. Kim, V. Provenzano, J.M. Schoenung, Synthesis and oxidation behavior of nanocrystalline MCrAIY bond coatings, J. Therm. Spray Technol. 14 (2005) 23–30. ##[27] O. Maranho, D. Rodrigues, M. Boccalini, A. Sinatora, Influence of parameters of the HVOF thermal spray process on the properties of multicomponent white cast iron coatings, Surf. Coatings Technol. 202 (2008) 3494–3500. ##[28] ASTM E384-05a, Standard Test Method for Microindentation Hardness of Materials, ASTM Int. 14 (2005) 1–24. ##[29] A. Zakeri, E. Bahmani, A.S.R. Aghdam, Impact of MCrAlY feedstock powder modification by high-energy ball milling on the microstructure and high-temperature oxidation performance of HVOF-sprayed coatings, Surf. Coatings Technol. (2020) 125935. ##[30] D. Guo, L. Zhao, B. Jodoin, Cold Spray for Production of In-Situ Nanocrystalline MCrAlY Coatings – Part II: Isothermal Oxidation Performance, Surf. Coatings Technol. (2021) 126828. ##[31] Y. Chen, X. Zhao, P. Xiao, Effect of microstructure on early oxidation of MCrAlY coatings, Acta Mater. 159 (2018) 150–162. ##[32] S. Hong, Y. Wu, G. Li, B. Wang, W. Gao, G. 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1 - Electrical properties of polymer blend composites based on Silicone rubber/EPDM/clay for high voltage insulators https://www.jourcc.com/index.php/jourcc/article/view/jcc313 10.29252/jcc.3.1.3 1 Silicone rubber (SR) and ethylene-propylene-diene monomer (EPDM) are widely-used polymers as housing for high voltage insulators. In this work, SR/EPDM/clay nanocomposites were obtained by two-roll mill mixing for outdoor polymeric insulators. Morphology, dielectric properties, dielectric breakdown strength (DBS), and surface and volume resistivity of different weight contents of nanoclay (Cloisite 15A) incorporated in SR, EPDM, and SR/EPDM hybrid nanocomposites were characterized. In addition, the distribution of breakdown voltages was fit to the distribution of Weibull and estimated the scale and shape parameters. The polar groups of the clay particles enhanced the polarization capability of the nanocomposites. Moreover, DBS results showed an enhancement of the dielectric strength proportional to clay content. Finally, the surface and volume resistance of all nanocomposites decreases but maintains very high electrical resistance. The experimental data presented in this study will be useful for designing and manufacturing the outdoor insulators. 0 - 18 24 - - Leila Bazli Iran Polymer and Petrochemical Institute, Nano and Smart Polymers Center of Excellence Iran leilabazli64@gmail.com - - Sara Eskandarinezhad Department of Mining and Metallurgy, Yazd University Iran info@jourcc.com - - Naresh Kakur Department of Mechanical Engineering, Indian Institute of Technology Madras India info@jourcc.com - - Velmurugan Ramachandran Department of Aerospace Engineering, Indian Institute of Technology Madras India info@jourcc.com - - Alejandro Bacigalupe Center of Advanced Materials, National Institute of Industrial Technology (INTI) Argentina info@jourcc.com - - Marcela Mansilla National Scientific and Technical Research Council (CONICET) Argentina info@jourcc.com - - Mariano Escobar Center of Advanced Materials, National Institute of Industrial Technology (INTI) Argentina info@jourcc.com EPDM Silicone rubber Clay Nanocomposite Dielectric properties [1] D. Tsalagkas, Z. Börcsök, Z. Pásztory, Thermal, physical and mechanical properties of surface overlaid bark-based insulation panels, European Journal of Wood and Wood Products 77(5) (2019) 721-730. ##[2] A.S. Rana, M.K. Vamshi, K. Naresh, R. Velmurugan, R. Sarathi, Effect of nanoclay on mechanical, thermal and morphological properties of silicone rubber and EPDM/silicone rubber hybrid composites, Advances in Materials and Processing Technologies (2020) 1-8. ##[3] J. Sun, F. Cai, D. Tao, Q. Ni, Y. Fu, Enhanced Thermal Insulation of the Hol-low Glass Microsphere/Glass Fiber Fabric Textile Composite Material, Polymers 13(4) (2021) 505. ##[4] P. Abasian, M. Radmansouri, M.H. Jouybari, M.V. Ghasemi, A. Mohammadi, M. Ira-ni, F.S. Jazi, Incorporation of magnetic NaX zeolite/DOX into the PLA/chitosan nanofibers for sustained release of doxorubicin against carcinoma cells death in vitro, International journal of biological macromolecules 121 (2019) 398-406. ##[5] M. Radmansouri, E. Bahmani, E. 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1 - A review on the synthesis of the TiO2-based photocatalyst for the environmental purification https://www.jourcc.com/index.php/jourcc/article/view/jcc314 10.29252/jcc.3.1.4 1 TiO2 as a photocatalyst has been widely investigated and applied in many fields such as fuel cells, sterilization, and environmental decontamination. Some efforts, such as operation parameters, synthesis techniques, and improvements by doping have been made to improve its performance. To have a photocatalyst with high photocatalytic activity for environmental purification, the most important step is to know about the synthesis methods and the parameters and conditions that lead to preparing a highly photocatalytic active photocatalyst. This article paves the way in selecting the best synthesizing technique. In this article, the most common synthesis techniques of TiO2-based photocatalysts, including sol-gel, hydrothermal, solvothermal, chemical vapor deposition, and physical vapor deposition have been reviewed. The most important results that have been achieved in the field of synthesis were collected. 0 - 25 42 - - Naghmeh Aboualigaledari Department of Nanoscience, Joint School of Nanoscience and Nanoengineering (JSNN), University of North Carolina at Reensboro United States naghmeh.abuali@gmail.com - - Mohammad Rahmani Department of Chemical Engineering, Amirkabir University of Technology Iran info@jourcc.com TiO2-based photocatalyst Liquid-phase processing Physical production techniques Environmental application [1] A. Jafari Rad, Synthesis of copper oxide nanoparticles on activated carbon for pollutant re-moval in Tartrazine structure, Journal of Composites and Compounds 2(3) (2020). ##[2] A. Abuchenari, K. Hardani, S. Abazari, F. Naghdi, M. Ahmady Keleshteri, A. Jamavari, A. 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1 - Application of different Nanocatalysts in industrial effluent treatment: A review https://www.jourcc.com/index.php/jourcc/article/view/jcc315 10.29252/jcc.3.1.5 1 The manufacturing, application, and design of chemical processes and products that minimize or remove waste and the use of dangerous and toxic reagents are referred to as green chemistry. Green chemistry is made up of twelve principles, one of which is catalysis. The role of catalysis is to accelerate the reaction by introducing a substance called a catalyst. Because of their high efficiency, productivity, activity, and selectivity, nanocatalysts have recently received many interests. Nanocatalysts are characterized by their high surface area to volume ratio, as well as their nanoscale forms and sizes. One of the significant applications of nanocatalysts is wastewater and wastewater purification. Green and bio-synthesized nanocatalysts could be used efficiently to remove heavy metals, medicinal, organic, and inorganic pollutants from the wastewater systems. 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1 - Sol-gel: Uncomplicated, routine and affordable synthesis procedure for utilization of composites in drug delivery: Review https://www.jourcc.com/index.php/jourcc/article/view/jcc316 10.29252/jcc.3.1.6 1 Drug delivery is known as an approach for transporting a pharmaceutical compound in animals and the human body to achieve effective therapy. Drug carriers are usually based on nanoparticles synthesized by several methods. The sol-gel method is an inexpensive and simple process to prepare drug carriers that can produce particles with a high degree of homogeneity and purity. The process of sol-gel involves hydrolysis, polymerization/condensation of monomers, particle growth, and gel formation. The properties of materials including composition and morphology are affected by several factors and can be controlled by the process parameters. Due to the advantages of this method, it is widely used for drug carriers’ preparation. In this study, the definition and advantages of the sol-gel process are discussed. Moreover, drug carriers such as organic-inorganic, silica, and calcium composites, as well as bioactive glass synthesized by this method are reviewed. 0 - 57 70 - - Reyhaneh Nasr Azadani Department of Biomaterials Nanotechnology and Tissue engineering, Isfahan University of Medical Sciences Iran info@jourcc.com - - Milad Sabbagh Lecturer at Dept. Biomedical Eng. and Dept. Laboratory Instrumentation Eng. Iran info@jourcc.com - - Haniye Salehi Department of Physical Education and Sport Science, Islamic Azad University, Kerman Branch Iran info@jourcc.com - - Amir Cheshmi Department of Materials Engineering, Babol Noshirvani University of Technology Iran amir_cheshomi@yahoo.com - - Ali Raza School of Biomedical Engineering, Shanghai Jiaotong University China info@jourcc.com - - Beena Kumari Department of Pharmaceutical Sciences, Indira Gandhi University India info@jourcc.com - - Gisou Erabi School of Medicine, Urmia University of Medical Sciences Iran info@jourcc.com Drug carriers Sol-gel Organic-inorganic composites Silica Calcium composites Bioactive glass [1] G. Gregoriadis, Targeting of drugs, Nature 265(5593) (1977) 407-411. ##[2] A. Zaffaroni, Therapeutic systems: the key to rational drug therapy, Drug metabolism reviews 8(2) (1978) 191-221. ##[3] M. 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1 - A review of additive manufacturing of Mg-based alloys and composite implants https://www.jourcc.com/index.php/jourcc/article/view/jcc317 10.29252/jcc.3.1.7 1 Magnesium based materials are considered promising biodegradable metals for orthopedic bone implant applications as they exhibit similar density and elastic modulus to that of bone, biodegradability, and excellent osteogenic properties. The use of Mg based biomaterials eliminates the limitations of currently used implant materials such as stress shielding and the need for the second surgery. Recently, the development of Mg-based implants has attracted significant attention. Additive manufacturing is one of the effective techniques to develop Mg based implants. Additive manufacturing which could be named 3D printing is a transformative and rapid method of producing industrial parts with in the acceptable dimensional range. Therefore, recent investigations have tried to apply this method for the development of Mg-based implants. This state-of-the-art review focuses on the additive manufacturing of Mg biodegradable materials and their in-vitro corrosion and degradation, and mechanical properties. The future directions to develop Mg biodegradable materials are reported through summarization of current achievements. 0 - 71 83 - - Yasamin Zamani Islamic Azad University of Medical Sciences Iran yasaminzamani181@gmail.com - - Hadi Ghazanfari Department of Mining, Metallurgical and Materials Engineering, Université Laval Canada info@jourcc.com - - Gisou Erabi School of Medicine, Urmia University of Medical Sciences Iran info@jourcc.com - - Amirhossein Moghanian Department of Materials Engineering, Imam Khomeini International University Iran info@jourcc.com - - Belma Fakić Metallurgical Institute “Kemal Kapetanović” Zenica Travnička cesta Bosnia and Herzegovina info@jourcc.com - - Seyed Mohammad Hosseini School of Mechanical Engineering, University of Tehran Iran info@jourcc.com - - Babar Pasha Mahammod National Institute of Technology Warangal India info@jourcc.com Additive manufacturing Mg alloys 3D printing Composite implants [1] I. Antoniac, D. Popescu, A. Zapciu, A. Antoniac, F. 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