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J. Cent. South Univ. Technol. (2009) 16: 0326-0331 DOI: 10.1007/s11771-009-0055-x Numerical study on freezing-thawing phase change heat transfer in biological tissue embedded with two cryoprobes...; Abstract: A two-dimensional model for freezing and thawing phase change......
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that only two phases were identified for all the annealing conditions: I-phase and stable bct-Zr2Cu phase. For the annealing at 683 K (Fig.5(a)), I-phase precipitated as primary phase in Alloy UH after... was not accelerated by oxygen at higher temperature. For the annealing at 633 K (Fig.5(b)), I-phase also precipitated as primary phase in Alloy UH after 56 ks annealing; bct-Zr2Cu formed as primary......
Effects of magnesium content on phase constituents of Al-Mg-Si-Cu alloys LIU Hong(刘 宏)1, ZHAO Gang(赵 刚)2, LIU Chun-ming(刘春明)2, ZUO Liang(左 良)2 1. School of Mechanical Engineering, Shandong... dispersive spectrum(EDS), X-ray diffractometry(XRD) and metallographic analysis, the effects of variation of magnesium content on phase constituents of Al-Mg-Si-Cu alloys were investigated. The results......
ITO nano-powders prepared by microwave-assisted co-precipitation in aqueous phase ZHU Xie-bin(朱协彬), JIANG Tao(姜 涛), QIU Guan-zhou(邱冠周), HUANG Bai-yun(黄伯云) School of Minerals Processing...; Abstract: By using microwave-assisted co-precipitation in aqueous phase, adding surface activation agent......
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, the calculated EHN is less than that of critical EHN of σ phase precipitate (2.52). However the σ phase is also observed by TEM.Enrich of Cr and Mo around γ phase after γ'' phase precipitated leads to σ phase precipitated. Key words:superalloy; TCP phase; electron hole number; [全文内容正在添加中] ......
Relaxation process and phase transition of lanthanide liquid crystalline complexes by photoacoustic spectroscopy ZHANG Zhongning1,YANG Yuetao1,LIU Xiaojun1,LI Junjia1,ZHANG Shuyi1 (1.Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing 210093, China) Abstract:Lanthanide-containing liquid crystals exhibiting smectic A phase close to room......
Analysis of electron structure of γ/a2 phase boundaries in ternary TiAl intermetallics KONG Fan-tao(孔凡涛), CHEN Yu-yong(陈玉勇) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China Received 28 July 2006; accepted 15 September 2006 Abstract: The electron structure of γ/α2 phase boundaries in lamellar colonies in Ti-47Al-2M(M=Nb, Cr, V) (mole fraction......
Phase and microstructure selection in directionally solidified peritectic alloys with convection SU Yan-qing(苏彦庆), LI Xin-zhong(李新中), GUO Jing-jie(郭景杰), WU Shi-ping(吴士平),DING Hong-sheng(丁宏生), FU... to investigate the convection effects on phase and microstructure selection in directionally solidified peritectic alloy. Due to the convection effects, the steady-state compositions of one phase......
