共搜索到11150条信息,每页显示10条信息,共1115页。用时:0小时0分0秒378毫秒
. [4] CIERWINSKI F. Magnesium alloys: design, processing and properties[M]. Croatia: Intech Open Science, 2011: 2-20. [5] YAMAMOTO N, LIAO J, WATANABE S, et al. Effect of intermetallic compound layer...(12): 22-26. QIU Hui, LIU Jianxiu, ZHOU Yajun. Research on magnesium matrix composites prepared by powder metallurgy method[J]. Light Alloy Fabrication Technology, 2012, 40(12): 22-26. [7] 周亚军, 张发厅, 刘......
......
......
">The LaFe 11.4 Si 1.6 compounds are prepared by arc-melting and then annealed at different high temperatures from 1323 K(5 h) to 1623 K(2 h) . The powder X-ray diffraction(XRD) and microstructure observations show that large amount of 1:13 phase begins to appear in the LaFe 11.4 Si 1.6 compound annealed at 1423 K(5 h) . In the temperature range from 1423 K to 1523 K,the α-Fe and LaFeSi phases......
......
Numerical Analysis of Powder Properties in Low Power Plasma Torch AN Lian-tong1,GAO Yang1,Yan Zhi-jun1,HEI Zhu-kun1 (1.Marine Engineering Collage, Dalian Maritime University, Dalian Liaoning 116026, China) 摘要:A mathematical model was presented to describe the particle trajectory, velocity and temperature properties in the low power plasma spraying torch (3.6 kW)in which powder particles were......
......
="ChDivSummary">Bulk La0.5Pr0.5Fe11.4Si1.6 compound exhibits a large magnetic-entropy change △Sm of 28.1 J/(kg K) for a magnetic-field change from 0 to 1.5 T at the Curie temperature,TC of 186 K,accompanied... and the magnetic hysteresis loss is decreased by 29%,while the large △Sm maintains.Especially,fine powder with an average size of 2 μm shows the same TC as the bulk and does not lose......
J. Cent. South Univ. (2012) 19: 809-815 DOI: 10.1007/s11771-012-1076-4 Heat balance of solar-soil source heat pump compound system CHEN Jin-hua(陈金华)1, BAO Xiu-bi(包修碧)2, PENG Yun-lin(彭运林)2, JIA... source heat pump compound system, operation patterns of solar-soil compound system were analyzed, particularly the advantages of parallel operation pattern. It is found that parallel operation......
Compaction of TiAlMn Alloy Powder by Explosion and Sintering温金海,黄伯云,曲选辉,吕海波摘 要:<正> Direct explosive compaction and sintering of a mixture of Ti-30Al-2Mn(wt%)and Ti-38Al-2Mn(wt%)intermetallic compound powders were carried out.Microstructure and phase characteristics of the alloyswere analysed by TEM,SEM,X-ray diffractometry and optical......