Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)Advanced Ceramics Progress2423-747710420241101Simulation of Residual Stress in Additive Manufacturing Process Using Finite Element Analysis1421294710.30501/acp.2024.474417.1160ENKiarashKaki SahnehMaster Student, Department of Ceramic, Materials and Energy Research Center, Karaj, Iran.0009-0008-0923-8556MohsenOstadshabaniAssistant Professor, Department of Ceramic, Materials and Energy Research Center, Karaj, Iran.0000-0001-6781-3178MansourRazaviAssistant Professor, Department of Ceramic, Materials and Energy Research Center, Karaj, Iran.0000-0003-0622-6775Journal Article20240823Selective laser melting (SLM) has emerged as a powerful additive manufacturing technique for creating complex metal parts. However, the high thermal gradients and rapid solidification rates inherent in this technique trigger significant residual stresses within the produced components. These stresses can potentially cause some defects such as cracks and deformation, threatening the structural integrity and performance of the parts. To overcome this challenge, this study employed a new Finite Element Analysis (FEA) feature in Abaqus software was employed in this study. This feature facilitates a more accurate prediction of residual stresses in the SLM-produced Ti-6Al-4V alloy samples under various laser power settings and real-world machine conditions. Simulating the SLM process and capturing the complex thermal and mechanical interactions would enable the researchers to identify the optimal laser power that minimizes the residual stress formation. The findings of this study brought about significant implications for the optimization of SLM processes. Once the factors that contribute to residual stress are identified, manufacturers can adjust process parameters to produce parts with improved mechanical properties and reduced risk of failure. In this regard, this research work is a significant step forward in using simulation to optimize additive manufacturing techniques in various industries.https://www.acerp.ir/article_212947_cfeaeddb2141b077642e66b3868451d1.pdfMaterials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)Advanced Ceramics Progress2423-747710420241101Exploring the Potential of ZnS/CdS Dual Nanocomposites in Photocatalytic Degradation for Water Cleanup51421477810.30501/acp.2025.486343.1165ENAmir HosseinAfzaliBSc Student, Faculty of Materials and Metallurgical Engineering, University of Semnan, Iran.0009-0000-4247-8801MaryamHajiebrahimiResearch Assistant, Faculty of Materials and Metallurgical Engineering, University of Semnan, Iran.0009-0000-3431-4495Mohammad MahdiHosseinieh FarahaniBSc Student, Faculty of Materials and Metallurgical Engineering, University of Semnan, Iran.0009-0005-7861-4015SanazAlamdariAssistant Professor, Department of Nanotechnology, Faculty of New Sciences and Technologies, University of Semnan, Iran.0000-0003-1557-8537OmidMirzaeeProfessor, Faculty of Materials & Metallurgical Engineering, University of Semnan, Iran.0009-0007-5108-8857Journal Article20241104The use of photocatalytic degradation to address environmental cleanup issues is gaining popularity. In this work, pure ZnS, CdS, and ZnS/CdS heterostructure nanocomposites with superior photocatalyst efficiency were synthesized using a straightforward coprecipitation technique and a solvothermal process. The structural, morphological, and optical characteristics were analyzed using XRD, EDX, FTIR, FESEM, and UV-Vis absorbance measurement techniques. The XRD data indicated that ZnS/CdS nanocomposites were produced with an average crystallite size of 15–20 nm. The UV-Vis measurements revealed an optical band gap ranging from 4.4 eV to 5.3 eV. The photocatalytic efficacy of the ZnS/CdS heterostructure nanocomposites in degrading methylene blue (MB) dye was evaluated under UVA light. The synthesized ZnS/CdS nanocomposite exhibited remarkable decolorization efficiency (99%) within just 5 minutes of UVA light exposure. This straightforward method has the potential to be scaled up for industrial applications.https://www.acerp.ir/article_214778_d47f16661da358bff63cfee52a578499.pdfMaterials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)Advanced Ceramics Progress2423-747710420241101Investigating the Effect of Modifying the Binder and Other Additives on the Printability of Ceramic Paste for the Direct Ink Writing (DIW) Technique152421553010.30501/acp.2025.486901.1169ENShahramMahboubizadehPhD Candidate, Department of Materials Engineering, Science and Research Branch, Islamic Azad University,Tehran, Iran.0009-0001-4375-0325ArqavanKazemiAssistant Professor, Department of Materials Engineering, Science and Research Branch, Islamic Azad University,Tehran, Iran.0000-0003-3204-5214MehdiKhodaeiAssociate Professor, Faculty of Material Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.0000-0003-0076-8872Journal Article20241103Ceramic 3D printing, also known as ceramic additive manufacturing, is one of the new production methods based on 3D printers without the need for molds. This manufacturing method allows for the creation of ceramics with complex geometric shapes, hence cost reduction. Among the various additive manufacturing methods, extrusion-based printers have been well received by a large number of researchers and industrialists. In this study, the rheological behavior of ceramic pastes and their printability in the extrusion-based 3D printing process were investigated. Emphasis is placed on optimizing the parameters that affect paste printing, particularly for pastes containing a high weight percentage (wt%) of alumina powder. The current research used Direct Ink Writing (DIW) method to examine the impact of adjusting binder content and additives such as plasticizers and dispersants on the printability of the alumina paste. The results indicate that optimizing these parameters improves the printability of the paste which exhibited shear thinning behavior. Paste samples with varying weight percentages of alumina powder and Polyvinyl Alcohol (PVA) binder were prepared. After evaluating their printability and viscosity, the printing process was carried out. The printed samples were then sintered at a temperature of 1250 °C. The results revealed that increasing the printability of alumina pastes enhanced their density and strength. The best results were achieved with a 70 wt% alumina sample, which exhibited a density of 1.8 g/cm³ and a flexural strength of 2.9 MPa. These results confirm the significant influence of wt% of alumina powder on the mechanical properties of the printed parts.https://www.acerp.ir/article_215530_1f17856265b71511451f17a44f171f57.pdfMaterials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)Advanced Ceramics Progress2423-747710420241101Functionalized Sepiolite Nanocatalyst under Radiative Heating for Cyclic Biodiesel Production253221831310.30501/acp.2024.408506.1129ENShivaAghababaeianMaster of Science, Renewable Energy Engineering, Department of Energy, Materials and Energy Research Center, Karaj, Iran.0009-0004-5722-0511MaziarDehghanAssociate Professor, Department of Energy, Materials and Energy Research Center, Karaj, Iran.0000-0002-4205-0685MojtabaBeigzadehAssistant Professor, Department of Energy, Materials and Energy Research Center, Karaj, Iran.0000-0002-0949-9915Farah SadatHalekAssociate Professor, Department of Energy, Materials and Energy Research Center, Karaj, Iran.0000-0002-6192-4907MohammadAminyAssistant Professor, Department of Energy, Materials and Energy Research Center, Karaj, Iran.0000-0002-4205-7422Journal Article20230724Biodiesel production is energy-consuming and requires an appropriate catalyst to boost the reaction. In the present study, waste edible oil was used as the feedstock, an infrared lamp was utilized as the heat source, and a solid acid catalyst based on sepiolite (Sep) clay was applied. The sepiolite catalyst was modified with chlorosulfonic acid and exhibited a nanoscale particle size distribution. The effects of infrared irradiation on the reaction time and quality of the oil-methanol-catalyst system were investigated and compared with conventional electric heating. Material properties were characterized by XRD (X-ray diffraction) and FE-SEM (field-emission scanning electron microscopy), and the biodiesel yield and quality were evaluated by GC-MS (gas chromatography-mass spectrometry) analysis. The experimental results demonstrated that the sepiolite nanocatalyst achieved a high biodiesel yield of 96.5% under infrared irradiation, about 4% higher than that of the conventional heating under the same conditions. Meanwhile, radiation heating reduced energy consumption per liter by 68% compared to electric heating. The biodiesel production cost on a laboratory scale was estimated at 1.26 to 1.65 $/lit for the infrared irradiation and 1.68 to 2.62 $/lit for the electric heating method. The separation and recovery of the catalyst from the transesterification reaction products were also studied and found to be easier, faster, and simpler than those of homogeneous catalysts. The catalyst was successfully reused for three successive cycles, with less than a 2% reduction in the yield per cycle, and still showed a biodiesel yield of above 90%.https://www.acerp.ir/article_218313_6715a7dd5845042600a2b547aecbf2ad.pdfMaterials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)Advanced Ceramics Progress2423-747710420241101Effects of Ball Milling Sequences on the Reactive Synthesis of Ti3AlC2 from Ti/Al/C Powder Mixture333922468810.30501/acp.2025.517824.1175ENAkbarHeidarpourAssociate Professor, Department of Metallurgy and Materials Engineering, Hamedan University of Technology, Hamedan, Iran.0000-0002-7379-4265AmirHaghighiMSc, Department of Metallurgy and Materials Engineering, Hamedan University of Technology, Hamedan, Iran.0000-0001-5891-4890SamadGhasemiAssistant Professor, Department of Metallurgy and Materials Engineering, Hamedan University of Technology, Hamedan, Iran.0000-0001-6833-3547AmirAlhajiPhD, Department of Materials Engineering, Malek-Ashtar University of Technology, Shahin-Shahr, Isfahan, Iran.0000-0003-0742-9726Journal Article20250419This study aims to investigate the synthesis of Ti<sub>3</sub>AlC<sub>2</sub> MAX phase through ball milling a Ti/Al/C mixture in three distinct sequences. In the first run, a mixture of 3Ti/Al/2C was ball milled for 10 hours. In the second run, the Al/C mixture was ball milled for 5 hours, and which Ti was added, and the ball milling was continued for a period of 10 hour. In the third run, the Ti/Al mixture was ball milled for 5 hours, followed by the addition of C, with the ball milling extended over a 10-hour period. The effects of heat treatment at high temperature were also explored. Furthermore, characterization of the products in terms of structural evolution, as well as the morphological investigation, was carried out by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), respectively. The XRD results revealed that the Ti<sub>3</sub>AlC<sub>2</sub> and TiC phases are the main reaction products formed after ball milling in different sequences. Annealing at high temperature resulted in the completion of the synthesis reactions and improvement in the purity of Ti<sub>3</sub>AlC<sub>2</sub> MAX phase, with the highest purity obtained following the third ball milling. The characteristics lamellar structure of Ti<sub>3</sub>AlC<sub>2</sub> was observed in the SEM micrographs of the annealed product. Materials and Energy Research Center (MERC)
Iranian Ceramic Society (ICERS)Advanced Ceramics Progress2423-747710420241101Investigation of Different Types of Black Oxide-Forming Materials on Appearance Quality404522558810.30501/acp.2025.515273.1174ENAmir HoseinRiaziPh.D. Candidate, School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.0000-0003-3596-7927Seyed HosseinRazaviAssociate Professor, School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran0000-0001-8670-3855Seyed Mohammad AliBoutorabiProfessor, School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran0000-0002-3109-0593Seyyed MehdiMiresmaeiliAssociate Professor, Mechanical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran0009-0000-1276-7776MohsenOstad ShabaniAssistant Professor, Department of Ceramic, Materials and Energy Research Center, Karaj, Iran.0000-0001-6781-3178Zahra-SadatSeyedraoufiAssistant Professor, Department of Matetials Engineering, Ka.C., Islamic Azad University, Karaj, Alborz, Iran.0000-0002-2240-4204Journal Article20250406In black oxide generation methods, selecting an alkaline compound capable of generating magnetite under suitable temperature conditions not only improves the protective quality of the resulting oxide but also prevents the loss of energy and raw materials. In this paper, the effects of various commonly used compounds, along with some additional additives, on specific methods were investigated. The optimal conditions for black oxide formation were identified as the appropriate composition ratio, a fixed temperature of 150°C, and a duration of 5 to 8 minutes, depending on the type of parts. In this study, ferrous sulfate was used to recover and improve the properties of the depleted solution, thereby reducing the consumption of solution and alkaline materials. The composition and temperature conditions identified in this study can be applied to carbon steel parts with different levels of carbon contents, including low, medium, and high carbon steel, which are commonly used in industry.https://www.acerp.ir/article_225588_354a7e1ee6f448a30c41a4ea39f1b4ce.pdf