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of the sintered composites both increased with increasing the ball milling time. Key words: Ti35Nb2.5Sn/10HA; ultrafine grain; powder metallurgy; milling time 1 Introduction Recently β titanium alloys... Trans. Nonferrous Met. Soc. China 22(2012) 608-612 Effect of milling time on microstructure of Ti35Nb2.5Sn/10HA biocomposite fabricated by powder metallurgy and sintering WANG Xiao-peng1, 2, XU......
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; 1 Introduction Ultrafine copper powder is a versatile material, and many applications have been found in industrial fields. Because... or film[10-14], electromagnetic shielding material[10], etc. The basic methods available for ultrafine copper powder preparation include gas-phase vapor method[15], electrolytic process[16], liquid phase......
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钨基体的孔隙更加规则,具有更均匀的孔隙分布,开孔率也有所提高. 图3 不同进料速率制备的球形超细钨粉的SEM像[17] Fig. 3 SEM images of spherical ultrafine tungsten powders prepared at different feed rates 选择粒径小且具有较窄粒度分布的原料钨粉,有利于提高球形钨粉产物的各项性能.北京科技大... Feng. The preparation process and application of superfine tungsten powder[J]. China Tungsten Industry, 2009, 24(1): 29-32. [2] 叶 凯, 梁 风, 姚耀春, 马文会, 杨 斌, 戴永年. 直流电弧等离子体法制备纳米材料的研究进展[J]. 材料导报, 2019, 33(4......
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Preparation of spherical ultrafine copper powder via hydrogen reduction-densification of Mg(OH)2-coated Cu2O powderYue-jun Wang and Kang-gen Zhou School of Metallurgical Science and Engineering...). Spherical ultrafine cuprous oxide (Cu2O) powder was prepared by glucose reduction of Cu(OH)2. The Cu2O particles were coated by Mg(OH)2 and reduced to metallic copper particles. At last, the copper......
Institute of Technology, Harbin 150001, China)Abstract:Powder metallurgy was used to fabricate a bulk ultrafine grain size (UFG) Mg-3Al-Zn alloys. Nanocrystalline alloy powders with an average grain...:Mg-3Al-Zn alloys; ultrafine grain; nanostructured powders; powder metallurgy......
Preparation and characterization of ultrafine zinc oxide powder by hydrothermal method SHEN Xiao-yi(申晓毅)1, ZHAI Yu-chun(翟玉春)1, ZHANG Yan-hui(张艳辉)2 1. School of Materials... as dispersant agent, ultrafine zinc oxide powder was synthesized by hydrothermal method. Influence of NaOH concentration on morphology of ZnO powder was studied. The as-synthesized ZnO powder looked like......
Microwave Sintering of W-15Cu Ultrafine Composite Powder Prepared by Spray Drying & Calcining-continuous Reduction Technology舒敬萍Engineering Training Center,Wuhan University of Technology摘 要:The effects of microwave sintering and conventional H2 sintering on the microstructure and properties of W-15Cu alloy using ultrafine W-15Cu composite powder......
