共搜索到13281条信息,每页显示10条信息,共1329页。用时:0小时0分0秒265毫秒
......
......
Preparation of ultrafine nickel powder by wet chemical process CHEN Rui-ying(陈瑞英), ZHOU Kang-gen(周康根) School of Metallurgical Science and Engineering, Central South University, Changsha 410083... with narrow size distribution. Key words: ultrafine nickel powder; chemical reduction; tap density; multiplayer ceramic capacitor 1 Introduction Driven towards smaller size, higher capacitance and lower......
J. Cent. South Univ. Technol. (2007)06-0773-06 DOI: 10.1007/s11771-007-0147-4 Effect of anions on preparation of ultrafine α-Al2O3 powder XIAO Jin(肖 劲)1, QIN Qi(秦 琪)1... granularity distribution in the particle size range of 2-3 μm. Key words: α-Al2O3; ultrafine powder; homogeneous precipitation; anion; mutual compound 1 Introduction Ultrafine alumina, with excellent......
......
......
超细 (纳米级) 颗粒材料的制备 (二) 赵谢群1,邱向东1,胡初潜1,张燕红1 (1.北京有色金属研究总院,北京100088) 摘要:The development of preparation methods of ultrafine powder made from liquid, gas, solid and mixed state materials was reviewed. The industrialization status of some ultrafine powder was also described. 关键词:Ultrafine particulate materials; Powder; Preparation; [全文内容正在添加中] ......
......
℃ separately corresponding to BaFe2O4 and BaFe12O19. There were three types of microstructures for Ba ferrite ultrafine powder specimen annealed at 800℃. For the specimens annealed at different temperatures...℃. The magnetic properties, σ s and H c of BaFe12O19ultrafine powders are different from that of BaFe12O19 bulk material.Key Words: Barium ferrite; ultrafine powder; microstructure; AFM; magnetic property 关键词......
......