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394毫秒
PREPARATION AND XRD STUDY OF LITHIUM DEFICIENT LiB COMPOUND Z.Y.LI1,Z.J.Liu1,B.Y.Huang1 (1.State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China) Abstract:The LiB compounds in lithium deficient state were prepared by three methods and its crystal structure was investigated by using XRD. It is found that the lattice constant c of the compound will increase......
Thermal expansion anomaly and spontaneous magnetostriction of Dy2AlFe14Mn2 compound WANG Hai-yun(王海云)1, ZHAO Miao(赵 淼)2, GAO Yan(高 艳)2, ZHOU Yan(周 严)1, FU Bin(傅 斌)2, YAN Da-li(严达利)2 1. School... 18 July 2006 Abstract: The structure and magnetic properties of Dy2AlFe14Mn2 compound were investigated by X-ray diffractometry and magnetization measurements. Dy2AlFe14Mn2 compound has a hexagonal......
J. Cent. South Univ. Technol. (2007)04-0514-06 DOI: 10.1007/s11771-007-0100-6 Microwave digestion polarography for determining seven trace elements in Salvia Miltiorrhiza Root and compound Salvia..., 6.4×10-3-10, 1.5×10-3-10 and 2.8×10-3-10 μg/mL, respectively. The method has been used to the simultaneous determination of the seven trace elements in Salvia Miltiorrhiza Root and compound Salvia......
SYNTHESIS AND CHARACTERIZATION OF A NEW COMPOUND :K6Ti0.67Nb15.33O42FANG Liang ZHANG Hui QING Linqin WU BolinWuhan University of Technology摘 要:<正> A new compound K6Ti0.67Nb15.33O42 was prepared for the first time by solid state reaction in K2O-Ni2O3-Nb2O5 ternary system. The new compound was characterized by electron probe, X-ray powder......
Synthesis and Thermoelectric Properties of Ca2.6Nd0.4Co4O9 Compound 王静平1,车平1,冯静1,张艳1,薄其兵1,孟健1 (1.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China) Abstract:The layered cobaltite Ca2.6Nd0.4Co4O9 was synthesized by the solid-state reaction. Their crystal structure was determined by the X-ray powder......
=2.4405(5) nm, β=109.94(3)°, Z=4, V=10.970 (4) nm3, Dc=2.262 g*cm-3, R1=0.0676, wR2=0.1441. The ESR spectrum of powder of the title compound at 110 K after being exposed to sunlight shows the signal...Crystal Structure and Characterization of a Novel Neodymium Coordination Compound Based on Dawson Cluster 魏梅林1,王敬平1,牛景杨1 (1.School of Chemistry and Chemical Engineering, Henan University, Kaifeng......
态抗拉强度可达到868 MPa,说明元素粉末中添加的预合金粉可以控制烧结过程,提高合金的烧结密度,同时增强合金的力学性能. 关键词:Ni-Fe-Al合金;机械合金化;粉末冶金 中图分类号:TG 113.25;TF 124 文献标识码:A Influence of prealloyed powder on properties of powder metallurgy NiFe18.5Al25 alloy CUI Jian-min1, LU Jing2, YUAN Yong1, CHEN Chun-hui2, LUO Feng-hua1, 2 (1. Laiwu Iron & Steel Group Powder Metallurgy Co. Ltd., Laiwu 271105, China; 2. State......
STUDY ON THE MICROSTRUCTURE OF Fe-KCI GRAPHITE INTERCALATION COMPOUND宾晓蓓摘 要:<正>The intercalatants presence of Fe-KCl graphite intercalation compound(Fe-KCl GIC) is in the form of independent crystalline phase. In this paper, its distribution in the carbon interlayer, crystalline status and powder sizes have been studied by X-ray diffraction (XRD......
protection, one protective zinc layer repairing paint was studied. The influence of the components (compound zinc powder and organic-inorganic hybrid modifier) on coating performance was analyzed and compared. The results indicate that the coating adhesion increases with increasing the content of compound zinc powder at the pigment/binder mass ratio of 4:1, and the organic-inorganic hybrid modifier......
Cu/Fe复合粉工业制备工艺及性能分析王晓军1,高鸣智2(1.广东省广州市广东技术师范学院机电学院2.上饶职业技术学院,江西上饶 334109)摘 要:研究用烧结法工业化制备合金粉末.在铁粉颗粒表面均匀地包覆一层Cu膜,Cu/Fe复合粉兼容铜基导热能力高,耐腐蚀和铁基承载能力强两方面优点,可用于生产含油轴承,结构件,摩擦零件.制造时无污染,不产生任何有害物质.由于不带任何酸性杂质,不会造成后续的粉末氧化.关键词:金属材料; 铜铁复合粉; 烧结法; 扩散; 包覆......