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; The amorphization and magnetic properties of Fe62Nb38 mechanically alloyed powders were investigated. In the initial mechanical alloying processes, the lattice structure of pure Fe is destroyed due to the cold-welding and fracturing, accompanying the reduction of ferromagnetic properties. The MS value of Fe62Nb38 powders with ball-milling time t=6 h is only 48.1 A·m2/kg. With prolongating......
Modification of Ag-doped BaTiO3 powders through La gaseous penetration route李佳龙,郝素娥,付东升,王威,马天龙,王春艳Department of Chemistry,Harbin Institute of Technology摘 要:The Ag-doped BaTiO3(BATO) polycrystalline powders were fabricated by Sol-Gel method. Further modification by rare earth La was done through gaseous penetration route. Changes in constitution......
Modification of Ag-doped BaTiO3 powders through La gaseous penetration route李佳龙,郝素娥,付东升,王威,马天龙,王春艳Department of Chemistry,Harbin Institute of Technology摘 要:The Ag-doped BaTiO3(BATO) polycrystalline powders were fabricated by Sol-Gel method. Further modification by rare earth La was done through gaseous penetration route. Changes in constitution......
Shape-controllable Synthesis of Ultrafine ZnO Powders of Different MorphologiesXiaoyi Shen,Yuan Liang,Yuchun Zhai,Zhiqiang NingSchool of Materials and Metallurgy, Northeastern University摘 要:By employing zinc acetate and sodium hydroxide as raw materials, ultrafine ZnO powders with different morphologies were successfully synthesized through hydrothermal......
Preparation of Al72Ni8Ti8Zr6Nb3Y3 amorphous powders and bulk materialsYu Wu,Xin-fu Wang,Fu-sheng HanKey Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences摘 要:Amorphous Al72Ni8Ti8Zr6Nb3Y3 powders were successfully fabricated by mechanical alloying. The microstructure, glass-forming ability, and crystallization......
Chemical synthesis of nanocrystalline ZrO2-SnO2 composite powdersYANG Huaming;ZHANG Xiangchao;YANG Wuguo;HUANG Chenghuan;QIU Guanzhou Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China摘 要:
ZrB2/Al2O3 composite powders prepared by self-propagating high-temperature synthesis YU Zhi-qiang(于志强), YANG Zhen-guo(杨振国) (Department of Material Science, Fudan University, Shanghai 200433, China) Abstract: Self-propagating high-temperature synthesis(SHS) method was used to synthesize ZrB2/Al2O3 composite powders from B2O3-ZrO2-Al system. X-ray diffractometry(XRD) and scanning electron......
Beijing, Beijing 100083, China摘 要:<正> Mechanically activated W-Cu powders were sintered by a spark plasma sintering system (SPS) in order to develop.... SPS is an effective method to obtain W-Cu powders with high density and superior physical properties.关键词:......
Thermal behavior and structure of Fe84Nb7 B9 nanocrystalline powders CAO Ling-fei(曹玲飞)1, WANG Ming-pu(汪明朴)1, XIE Dan(谢 丹)1, GUO Ming-xing(郭明星)1, LI Zhou(李 周)1, TAN Wang(谭 望)1, 2, XU Gen-ying(徐根应... of Fe84Nb7B9 nanocrystalline powders were analyzed by DTA, XRD and TEM measurements. The results show that nanocrystalline powders with grain size of less than 10 nm can be prepared by mechanical alloying......
Fabrication of nano-crystalline W-Ni-Fe pre-alloyed powders by mechanical alloying technique YAN Jian-wu(晏建武)1, 2, 3, LIU Ying(刘 莹)3, PENG A-fang(彭阿芳)1, LU Quan-guo(卢全国)1 1. Institute...; Abstract: Nano-crystalline pre-alloyed powders of W-Ni-Fe were fabricated by high energy ball milling mechanical alloying (MA......