Key Engineering Materials最新文献_第6页

Mechanical Properties of FDM Fabricated PLA Parts: Effect of 3D Printing Parameter Optimization Using Taguchi Method FDM 制成的聚乳酸部件的机械性能：使用田口方法优化 3D 打印参数的效果

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-to8lkl

Charles Edward Alviar, B. Basilia

引用次数: 0

Studying Effects of Heat Treatment on Friction Stir Welding of Al 7075 研究热处理对铝 7075 摩擦搅拌焊接的影响

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-rxp4kx

D. M. Nhat, Pham Quang Trung, Bui Duy Khanh

引用次数: 0

A Novel Processing Route in the Mechano-Synthesis of Austenitic 58Fe25Ni17Cr Oxide Dispersion Strengthened Cast Alloy through Y2O3 Pre-Linking 通过 Y2O3 预连接奥氏体 58Fe25Ni17Cr 氧化物弥散强化铸造合金的机械合成新工艺路线

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-1uiqtf

Parikin Farihin, Bambang Suharno, Mohammad Dani, Andryansyah Andryansyah, Dian Adi Prastowo, Andon Insani, Djoko Hadi Prayitno

{"title":"A Novel Processing Route in the Mechano-Synthesis of Austenitic 58Fe25Ni17Cr Oxide Dispersion Strengthened Cast Alloy through Y2O3 Pre-Linking","authors":"Parikin Farihin, Bambang Suharno, Mohammad Dani, Andryansyah Andryansyah, Dian Adi Prastowo, Andon Insani, Djoko Hadi Prayitno","doi":"10.4028/p-1uiqtf","DOIUrl":"https://doi.org/10.4028/p-1uiqtf","url":null,"abstract":"A powder metallurgical process has been applied to synthesize the FeNiCr+Y2O3 oxide dispersion strengthened (ODS) alloys. The composition of the reinforcing Y2O3 added into matrix was varied from zero to 2.0 percent weight. Raw powders were carefully weighed with a four-digit balance. Y2O3 powder was pre-linked into Fe powder as the dominant element in the matrix by manually ground for half an hour. Ni and Cr powders were then mixed evenly for the next a half hour to obtain FeNiCr+Y2O3 precursor. Avoiding agglomeration and grain coarsening, the precursor was uniformly homogenized by milling for 20 hours. The precursors were then compressed at an isostatic pressure of 100 kN to 12 grams of pellets each. To prevent sample erosion during smelting with an electric arc furnace (EAF), crystal growing mechanism by conventional sintering was performed at 900 °C for 2 hours. This strengthens the bonds between precursors in forming ODS alloys. The samples were then melt-casted in the arc by 4 times flips. As a result, the neutron diffraction analysis and SEM-EDS strongly reveal the austenitic crystal structure and Y2O3 oxide successfully dispersed in the cast-alloy respectively. The microstructures with Y2O3 oxide spread uniformly overall the cast-alloy surfaces.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":"24 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Nano-Alumina (Al2O3) Loading on the Thermo-Mechanical Properties of Poly(Lactic Acid) for Fused Deposition Modeling 3D Printing Applications 纳米氧化铝 (Al2O3) 负载对熔融沉积建模三维打印应用中的聚乳酸热机械性能的影响

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-pyzm8q

M. S. Tolentino, B. Basilia, P. A. D. De Yro

引用次数: 0

3D-Printed Polymer Spare Parts for Various Applications 用于各种应用的 3D 打印聚合物备件

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-nba9dx

John Ryan C. Dizon

引用次数: 0

Tensile Strength of Wire-Woven SUS 304 Austenitic Stainless Steel 钢丝编织的 SUS 304 奥氏体不锈钢的拉伸强度

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-lb4si9

Rando Tungga Dewa, Daffa Mandala Adinata, Raja Akbar, Muhammad Raihan Atallah Yasir

引用次数: 0

A Study on Optimizing the Parameters of the Heat Treatment Process on Rotary Friction Welding of Aluminum Alloy A6061 铝合金 A6061 旋转摩擦焊接热处理工艺参数优化研究

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-o0lhwr

Phan Bao Hoai Nam, Pham Quang Trung, Bui Duy Khanh

引用次数: 0

Functionalization and Deconvolution of Tubular Ceramic Support Membrane Prepare from High Silica Spent Bleaching Earth by Centrifugal Casting 利用离心铸造法制备高硅漂白废土管状陶瓷支撑膜的功能化和解旋技术

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-de2xpu

A. Rahma, M. Elma, Muhammad Roil Bilad, I. Syauqiah, Rahmad Aprido Patria, Muhammad Ziqri, Dita Kartikawati

{"title":"Functionalization and Deconvolution of Tubular Ceramic Support Membrane Prepare from High Silica Spent Bleaching Earth by Centrifugal Casting","authors":"A. Rahma, M. Elma, Muhammad Roil Bilad, I. Syauqiah, Rahmad Aprido Patria, Muhammad Ziqri, Dita Kartikawati","doi":"10.4028/p-de2xpu","DOIUrl":"https://doi.org/10.4028/p-de2xpu","url":null,"abstract":"Spent Bleaching Earth (SBE) is a solid waste produced from the palm cooking oil refining industry. The commercial ceramic membranes are quite pricey, therefore SBE solid waste is possible to be an alternative for reduction of membrane material cost due to high silica content. This work demonstrates the fabrication of ceramic tubular support membrane with varied SBE addition and investigates the functionalization group of its membranes. The ceramic support membrane was prepared from regeneration SBE with varied loading composition 15 and 35 wt%. The regeneration SBE using n-Hexane as solvent. Membranes were casted into tubular configuration using centrifugal casting technique at 3000 rpm. The tubular ceramic SBE membranes were dried and followed by calcined at 900°C with heating rate 2°C/min using programable furnace for 2 h. Both of raw SBE material and membranes were analyzed using Fourier transform infrared (FTIR). The SBE material after regenerated exhibits has high Si-OH and Si-O-Si peaks over raw material. Interestingly, the fabrication ceramic support membrane with tubular configuration is successfully preparation by centrifugal casting. Ceramic SBE membrane exhibits functionalization and deconvolution the present of siloxane, Al-OH-Al, Ti-O-Ti, and Al-O bands for both of 15 and 35wt% SBE loading. It concluded this tubular ceramic support membrane from SBE has appropriated chemical functionalize properties to applicates as membrane separation.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":"34 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140437095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting the Tensile Strength of 4D Printed PLA/EPO/Lignin Biocomposites Using Machine Learning 利用机器学习预测 4D 打印聚乳酸/EPO/木质素生物复合材料的拉伸强度

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-g9nis7

Amjad Fakhri Kamarulzaman, Nursyam Dzuha Haris, Hazleen Anuar, S. Toha, Y. A. Alli, M. R. Manshor

{"title":"Predicting the Tensile Strength of 4D Printed PLA/EPO/Lignin Biocomposites Using Machine Learning","authors":"Amjad Fakhri Kamarulzaman, Nursyam Dzuha Haris, Hazleen Anuar, S. Toha, Y. A. Alli, M. R. Manshor","doi":"10.4028/p-g9nis7","DOIUrl":"https://doi.org/10.4028/p-g9nis7","url":null,"abstract":"The allure of 4D printing and machine learning (ML) for various applications is unquestionable, and researchers are striving hard to improve their performance. In this work, machine learning has been applied to predict the tensile strength of the 4D printed materials. The study investigated the reinforcement of polylactic acid (PLA) filament with lignin from oil palm empty fruit bunches (OPEFB) in the presence of epoxidized palm oil (EPO) as 4D printable filament. The alkaline extraction method was carried out used sodium hydroxide (NaOH), followed by precipitation with mineral acids utilizing one-factor-at-a-time (OFAT). Thereafter, the tensile strength of the 4D printed material was evaluated by tensile testing machine followed by machine learning prediction in which convolutional neural network (CNN) was adopted. The morphology of the 4D printed materials was determined by scanning electron microscope (SEM). The SEM micrograph of the tensile test of biocomposites revealed layer-by-layer formation of the filaments on the printed unfilled PLA biocomposite indicating lower inter-filament bonding. In the first trial, the actual result of the experiment was evaluated to be 24.44 MPa while the CNN prediction was 25.53 MPa. In the second attempt, the actual result of the experiment was 31.61 MPa whereas the prediction from CNN was 27.55 MPa. The coefficient of determination value obtained from CNN prediction is 0.12662. The current study indicates that machine learning is an important tool to optimize and/or predict the properties of 4D printing materials.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":"24 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of 3D Printing Filaments from Recycled PLA Reinforced with Nanoclay 用纳米粘土增强再生聚乳酸开发 3D 打印纤维

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-2psmp3

B. Basilia, Julius N. Concepcion, John Jerald Prila

{"title":"Development of 3D Printing Filaments from Recycled PLA Reinforced with Nanoclay","authors":"B. Basilia, Julius N. Concepcion, John Jerald Prila","doi":"10.4028/p-2psmp3","DOIUrl":"https://doi.org/10.4028/p-2psmp3","url":null,"abstract":"This study focused on the development of 3D printing filaments suitable for fused deposition modeling (FDM) by recycling expired polylactic acid (PLA) filaments. The 3D printing filaments were processed into pellets by incorporating montmorillonite (MMT) nanoclay into the expired PLA filaments through twin-screw extrusion with varying concentrations of 1%, 3%, and 5 wt.%. These composite pellets were reprocessed to filaments through a filament extruder with a diameter of 1.75 mm. These filaments underwent different characterization techniques to test its mechanical and thermal properties. The thermal properties showed increasing values in the glass transition temperature, crystallization temperature, and melting temperature with a decrease in the specific heat upon incorporating increasing amount of MMT nanoclay. Furthermore, thermogravimetric analysis (TGA) showed a positive impact with better thermal stability when the MMT content was incorporated. In terms of mechanical properties, the study showed that the addition of 1 wt% MMT nanoclay, provided an increase in both the tensile strength and elastic modulus comparable to the virgin 3D printing PLA filament.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":"7 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0