Material Design & Processing Communications最新文献_第2页

Study the Wear Characteristics for Ni-ZrO2 and Ni-Al2O3 Nanocomposite Coatings Produced by Electroless Deposition Technique 研究无电解沉积技术制备的 Ni-ZrO2 和 Ni-Al2O3 纳米复合涂层的磨损特性

Material Design & Processing Communications Pub Date : 2024-07-30 DOI: 10.1155/2024/4907211

Hiba M. Algailani, Suha I. Al-Nassar, Adel K. Mahmoud, Hanaa A. Al-kaisy, Ahmed A. A. G. Alrubaiy

{"title":"Study the Wear Characteristics for Ni-ZrO2 and Ni-Al2O3 Nanocomposite Coatings Produced by Electroless Deposition Technique","authors":"Hiba M. Algailani, Suha I. Al-Nassar, Adel K. Mahmoud, Hanaa A. Al-kaisy, Ahmed A. A. G. Alrubaiy","doi":"10.1155/2024/4907211","DOIUrl":"https://doi.org/10.1155/2024/4907211","url":null,"abstract":"<p>Metal matrix nanocomposite coatings are promising for tribological applications given their superior hardness and wear resistance compared to metals. The point of this study was to describe the shape and long-term performance of nickel-based coatings that were put on stainless steel using electroless codeposition and made stronger with nanoparticles of zirconia (ZrO<sub>2</sub>) and alumina (Al<sub>2</sub>O<sub>3</sub>). Scanning electron microscopy showed the uniform incorporation of nanoceramics within nickel matrices. Pin-on-disk tribotests evaluated wear performance across loads from 5 to 15 N and sliding speeds up to 480 cm/min. Increasing nanoparticle content from 2 to 4 g/L markedly reduced wear rate due to enhanced hardness and density. At all tested loads, Ni-ZrO<sub>2</sub> and Ni-Al<sub>2</sub>O<sub>3</sub> nanocomposites exhibited considerably lower wear than monolithic nickel. The nanometal matrix particles hindered plastic deformation, with weight losses up to 68% lower than base nickel. Initially, wear resistance rose proportionally with sliding speed resulting from protective oxide layers until abrasive wear prevailed. The nanoparticle reinforcement dramatically extended durability, making it ideal for tribological systems involving mixed or abrasive conditions. More research needs to be done to find the best compositions and other matrix materials to use for these nanoscale strengthening effects.</p>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/4907211","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of the Dielectric Properties of Tropical Wood Species for Application to Millimetre-Band Antennas 应用于毫米波段天线的热带木材介电性能测量结果

Material Design & Processing Communications Pub Date : 2024-06-13 DOI: 10.1155/2024/7777701

Ndanga Adamou Eric, Eke Samuel, Matanga Jacques, Doka Yamigno Serge, Tan Phu Vuong

{"title":"Measurement of the Dielectric Properties of Tropical Wood Species for Application to Millimetre-Band Antennas","authors":"Ndanga Adamou Eric, Eke Samuel, Matanga Jacques, Doka Yamigno Serge, Tan Phu Vuong","doi":"10.1155/2024/7777701","DOIUrl":"https://doi.org/10.1155/2024/7777701","url":null,"abstract":"<div>\u0000 <p>The purpose of this article is to determine the dielectric characteristics of wood species from Central African forests at microwave frequency for use as patch antenna substrate. The measurements were carried out on dried wood at frequencies of 930 MHz and 2.48 GHz. The suitability of the wood as a printed microwave antenna substrate will be determined by the values taken by the complex parameters “permittivity” <i>ε</i><sup>′</sup>, loss tangent “tan<i>δ</i>,” and “permeability” <i>μ</i> = 1. The measurement method chosen in this work is the method of small disturbances in a cylindrical cavity operating in the TM<sub>010</sub> mode. The values obtained for each species confirm the anisotropic nature of the wood. These measurements will also confirm that losses, which are the main criterion for selecting wood as substrate, increase with the wood species category and its density. The design and simulation results at 28 GHz of a travelling wave antenna on a wood substrate show that antennas can radiate with these materials in the millimetre band.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/7777701","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141315331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Processing Parameters on the Process and Product Properties of Polylactic Acid/Natural Rubber Blown Films 加工参数对聚乳酸/天然橡胶吹塑薄膜的加工和产品特性的影响

Material Design & Processing Communications Pub Date : 2024-05-31 DOI: 10.1155/2024/5568117

Chananchida Pongpakdee, Kornchanok Akaradechakul, Cattaleeya Pattamaprom

{"title":"The Influence of Processing Parameters on the Process and Product Properties of Polylactic Acid/Natural Rubber Blown Films","authors":"Chananchida Pongpakdee, Kornchanok Akaradechakul, Cattaleeya Pattamaprom","doi":"10.1155/2024/5568117","DOIUrl":"https://doi.org/10.1155/2024/5568117","url":null,"abstract":"<div>\u0000 <p>This research investigates key parameters in the pilot-scale production of polylactic acid (PLA)/natural rubber (NR) blends for film-blowing applications. The study is aimed at analyzing the influence of process parameters including screw speed, output rate, compounding steps, and screw configuration on die stock pressure, temperature, %Torque, and retention time. The compounds were characterized for morphology, melt flow index, and film processability, whereby the resulting films were evaluated for surface appearance, transparency, and mechanical properties. It was found that the MFI value could be a good indicator of effective natural rubber dispersion, where higher screw speed and output rate contributed to slightly improved rubber dispersion due to higher shearing effects. Furthermore, an increase in the number of compounding steps and screw configurations with moderate mixing intensity led to further improved rubber dispersion. This was reflected by the reduced average rubber size from 4.1 to 1.0 <i>μ</i>m, lower viscosity (higher MFI), smoother films, and improved mechanical properties.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/5568117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141245933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation of the Compression Testing of Additively Manufactured Lattice Structures Using Inputs from Microcomputed Tomography 利用微计算机断层扫描输入模拟快速成型晶格结构的压缩测试

Material Design & Processing Communications Pub Date : 2023-11-28 DOI: 10.1155/2023/8000727

Minsol Park, Martin Philip Venter, Anton Du Plessis

{"title":"Simulation of the Compression Testing of Additively Manufactured Lattice Structures Using Inputs from Microcomputed Tomography","authors":"Minsol Park, Martin Philip Venter, Anton Du Plessis","doi":"10.1155/2023/8000727","DOIUrl":"10.1155/2023/8000727","url":null,"abstract":"<div>\u0000 <p>Finite element (FE) modeling is a powerful tool for the virtual testing of components, especially for high-value manufacturing like additive manufacturing (AM). AM often involves lattice structures in parts, imparting unique mechanical properties. Numerical models allow for cost-effective virtual testing, but computational limitations hinder comprehensive investigations on lattice structures, and idealized models may not fully represent actual manufactured behavior. This study proposes a simplified numerical model for analyzing lattice structure compression behavior before failure, incorporating X-ray microcomputed tomography (CT) scan data. The model includes real manufacturing defects, such as geometrical inaccuracies, internal porosity, and surface roughness. It closely fits compression test results from samples with varied defects, with a maximum error of 17% for stiffness, 13% for yield stress, and 7% for peak stress. The model offers promise for developing manufacturing defect-incorporated lattice representative volume elements (RVEs) to design AM parts with lattice regions. Replacing complex lattice structures with solid-infilled RVEs in simulations reduces computational costs significantly. This approach allows efficient exploration of lattice AM components’ mechanical behavior, accounting for manufacturing defects and offering insights for design optimization and material selection.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/8000727","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139220216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Investigations of Damage Identification for Aluminum Foam Sandwich Beams Using Two-Step Method 使用两步法识别铝泡沫夹层梁损伤的实验研究

Material Design & Processing Communications Pub Date : 2023-11-22 DOI: 10.1155/2023/6551830

Xinyu He, Dongsheng Ge, Yi An

{"title":"Experimental Investigations of Damage Identification for Aluminum Foam Sandwich Beams Using Two-Step Method","authors":"Xinyu He, Dongsheng Ge, Yi An","doi":"10.1155/2023/6551830","DOIUrl":"10.1155/2023/6551830","url":null,"abstract":"<div>\u0000 <p>In the experiment, strain gauges and dynamic signal acquisition instruments are used to collect and record data, and the stochastic subspace algorithm is used to extract the first three strain modal parameters of each case. The damage amount identified by the second natural frequency based on the modified Timoshenko beam theory is more in line with the actual situation. The damage depth of case 2 and case 4 is 2 mm, and the identified damage amount is 10% and 9%, respectively. The damage depth of case 3 and case 5 is 4 mm, and the identified damage amount is 16% and 23%, respectively. The damage location information of case 6 is well identified by using the normalized strain modal shape difference index and the enhanced strain modal shape difference index. Taking the strain response signal of case 6 as an example, it is proved that the stochastic subspace strain modal parameter identification algorithm has strong anti-interference ability under the action of 1.5 times, 4 times, and 9 times noise. In addition, the method is verified by theoretical calculation and numerical simulation, and the damage law has a high degree of coincidence with the test. The experimental results show that this method expands the theoretical basis of foam metal damage degree information identification and improves the accuracy of damage location information identification and the anti-interference of parameter identification.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/6551830","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139246827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toughness Enhancement of PLA-Based Filaments for Material Extrusion 3D Printing 用于材料挤压3D打印的pla基长丝的韧性增强

Material Design & Processing Communications Pub Date : 2023-08-09 DOI: 10.1155/2023/2707510

Siriwan Pongsathit, Jutamas Kamaisoom, Atikarn Rungteerabandit, Pakorn Opaprakasit, Krit Jiamjiroch, Cattaleeya Pattamaprom

{"title":"Toughness Enhancement of PLA-Based Filaments for Material Extrusion 3D Printing","authors":"Siriwan Pongsathit, Jutamas Kamaisoom, Atikarn Rungteerabandit, Pakorn Opaprakasit, Krit Jiamjiroch, Cattaleeya Pattamaprom","doi":"10.1155/2023/2707510","DOIUrl":"10.1155/2023/2707510","url":null,"abstract":"<div>\u0000 <p>Poly(lactic acid) (PLA) is one of the most popular biodegradable thermoplastics in the market of 3D printing filaments used in the material extrusion (ME) technique. This is because it can be printed easily at low temperatures. However, its inherent brittleness limits its use in many applications. In this work, the toughness of PLA filament was improved by blending with various types of rubbers including natural rubber (NR), acrylic core–shell rubber (CSR), and thermoplastic polyurethane (TPU) in the amount of 15% by weight. PLA/TPU filament was found to have the smoothest surface with the best shape and dimension stability, while PLA/NR filament rendered the highest tensile toughness. In term of the effect of printing temperature, the highest printing temperature in this study (210°C) provided the highest smoothness with the best shape stability and dimension accuracy. Interestingly, the tensile toughness and elongation at break of 3D printed specimens were found to be higher than those of compression-molded specimens for all filament types. This could be explained by the ability of the 3D printing technique to produce specimens that aligned in the printing direction in a fiber-like pattern.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/2707510","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88716270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the Effect of Tool Temperature on Microstructure, Hardness, and Wear Behaviour of Aluminium 6061-T6 Alloy Welded by the Friction Stir Welding Process 刀具温度对6061-T6铝合金搅拌摩擦焊组织、硬度及磨损性能影响的研究

Material Design & Processing Communications Pub Date : 2023-05-13 DOI: 10.1155/2023/1795150

Mothibeli Pita

{"title":"Investigation of the Effect of Tool Temperature on Microstructure, Hardness, and Wear Behaviour of Aluminium 6061-T6 Alloy Welded by the Friction Stir Welding Process","authors":"Mothibeli Pita","doi":"10.1155/2023/1795150","DOIUrl":"10.1155/2023/1795150","url":null,"abstract":"<div>\u0000 <p>The friction stir welding (FSW) tool is a critical component to the success of the welding process. The aim of the paper is to investigate the effect of tool temperature on the microstructure and mechanical properties of the aluminium alloy during the friction stir welding process. The welding experiment was conducted at a tool rotational speed of 550 rpm, and tool temperature was measured with the increment of a 60 mm distance. Three different tool temperatures were obtained, and samples were characterised by scanning electron microscopy (SEM). The ASTM E384 standard was followed when conducting the Vickers hardness test, and material wear behaviour was tested using the ASTM G99 tribology testing standard. The results show that the tool temperature increases with distance during the FSW process (40.5, 46, and 54°C). A high tool temperature produces the weld butt with high mechanical properties (87.5 HV). The wear rate is low at a high tool temperature (1.169<i>E</i> − 006 mm<sup>3</sup>/N/m).</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/1795150","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79214818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Porous Titanium Scaffold: A New Design for Controlled Drug Delivery 多孔钛支架：一种新的药物控制递送设计

Material Design & Processing Communications Pub Date : 2023-04-05 DOI: 10.1155/2023/4664178

Sima Sadeghzade, Reza Amini Najafabadi, Mohammad Meysami, Amirhossein Meysami, Mohammad Khodaei, Taghi Isfahani

{"title":"Porous Titanium Scaffold: A New Design for Controlled Drug Delivery","authors":"Sima Sadeghzade, Reza Amini Najafabadi, Mohammad Meysami, Amirhossein Meysami, Mohammad Khodaei, Taghi Isfahani","doi":"10.1155/2023/4664178","DOIUrl":"10.1155/2023/4664178","url":null,"abstract":"<div>\u0000 <p>Gelatin crosslinking using conventional methods is usually associated with some toxic side effects. In this research, therefore, the vacuum heating method at 10 Pascal and 140°C under different times of 8, 16, and 32 h was used to cross-link strontium-loaded gelatin microparticles with varying degrees obtained by the oil/water mixing method on titanium scaffolds by the dip-coating method to avoid toxicity and also to control the strontium release rate to the surrounding tissue. The possible phases formed on the surface of the porous titanium scaffolds, the gelatin microparticle distribution, gelatin strontium loading, and strontium release were characterized using thin film X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), and inductively coupled plasma-mass spectrometer (ICP-MS) machines, respectively. The results indicated that at 600°C, the rutile phase was formed on the surface of the heat-treated titanium scaffolds. Furthermore, strontium was successfully loaded in the spherical gelatin microparticles, and the strontium-loaded gelatin microparticles were distributed uniformly on the surface of the titanium scaffolds, while the rate of the <i>in vitro</i> strontium release decreased by increasing the time of the gelatin microparticle vacuum-heat crosslinking, whereas at the burst release step, the <i>in vitro</i> strontium release rates were around 5, 4.4, and 2.5 ppm/h, for the 8, 16, and 32 h vacuum-heat cross-linked gelatin microparticles, respectively.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/4664178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78589491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of Refractory Alloys Produced by Laser Additive Manufacturing 激光增材制造耐火合金的表征

Material Design & Processing Communications Pub Date : 2022-11-24 DOI: 10.1155/2022/1928643

Andrew B. Kustas, Jonathan Pegues, Michael A. Melia, Shaun R. Whetten, Morgan Jones, Nicolas Argibay

引用次数: 0

Investigating the Effect of Cooling Media on Hardness, Toughness, Coefficient of Friction, and Wear Rate of Mild Steel Heat Treated at Different Temperatures 研究冷却介质对不同温度热处理的低碳钢硬度、韧性、摩擦系数和磨损率的影响

Material Design & Processing Communications Pub Date : 2022-09-27 DOI: 10.1155/2022/3564875

M. Pita, L. Lebea

引用次数: 0