葛云龙
,
刘清民
,
周敬
,
常昕
,
胡壮麒
金属学报
用熔体淬火非平衡凝固方法制备非晶态Bi(Pb)-Sr-Ca-Cu-O(1112),(2212)基材,在流通O_2气氛中经840—860℃长时间保温,生长出柔性(2212)超导单晶晶须,仔细研究了晶须生长及形貌特性。
关键词:
Bi(Pb)-Sr-Ca-Cu-O超导体
,
whisker
,
non-equilibrium solidification
,
null
,
null
闻立时
,
赵航炜
,
黄荣芳
材料研究学报
本文采用X 射线衍射、扫描电镜、分析电子显微镜和高分辩电镜,研究了热压复合SiC-A1_2O_3陶瓷的相组成、晶须、晶须-基体界面间的显微结构。结果表明,复合陶瓷中的晶须为15R 型SiC,基体为三方晶型的α-Al_2O_3。晶须内有大量的层错和孪晶;晶须-基体界面间存在一个过渡层,并有一定的取向关...
关键词:
碳化硅
,
alumina
,
whisker
,
microstructure
,
ceramic
Materials Letters
The microstructure of interfaces in a 6061 aluminium composite reinforced with aluminium borate whiskers has been investigated by means of transmission electron microscopy (TEM), mostly by high-resolution TEM (HRTEM). It was found that the magnesium atoms segregate at the whisker/aluminium interface...
关键词:
whisker
CHEN Shengqi ZHOU Yanchun XIA Fei ** Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
110015
,
China+ To whom correspondence should be addressed.
材料科学技术（英文）
The stability of the phases in equilibrium is calculated and discussed in order to analyse and predict the reactions in SiC and Si_3N_4 whisker formation.Equilibria among SiC,Si_3N_4,Si_2N_2O,SiO_2 and the gas phase are evaluated at different C activity,N_2 pressure,and temperature.According to the ...
关键词:
whisker
,
null
,
null
Lin GENG Congkai YAO Dept.of Metals and Technology
,
Harbin Institute of Technology (HIT)
,
Harbin
,
150006
,
China
材料科学技术（英文）
The microstructure of SiC whisker reinforced aluminium alloy (SiC_w/Al) composite is reviewed,and the SiC-Al interface in SiC_w/Al composite is especially discussed,The main contents are morphology of the aluminium matrix in SiC_w/Al composite;microstructures and defects of SiC whiskers in SiC_w/Al ...
关键词:
silicon carbide
,
null
,
null
,
null
,
null
XU Haigang ZHU Jing YUAN Hong Central Iron and Steel Research Institute
,
Ministry of Metallurgical Industry
,
Beijing
,
ChinaNING Xiaoguang YE Hengqiang Laboratory of Atomic Imaging of Solids
,
Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China
金属学报(英文版)
The morphology,crystal defects and chemical compositions of surfaces in two kinds of SiC whiskers related to their growth mechanism have been studied by means of electron microscopy and surface chemical analyses.Based upon the experimental results,five criteria for evaluating the whisker microstruct...
关键词:
SiC
,
null
,
null
,
null
GE Yunlong LIU Qingmin ZHOU Jing CHANG Xin HU Zhuangqi Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China Associate Professsor
,
Institute of Metal Research
,
Academia Sinica
,
Shenyang 110015
,
China
金属学报(英文版)
Amorphous Bi(Pb)-Sr-Ca-Cu-O strips of types(1112)and(2212)were made by means of non-equilibrium solidification of melt-quenching method,On the surface of glassy strip,the flexible(2212)superconducting whiskers have been obtained.The growth and feature of superconducting whiskers were studied in deta...
关键词:
Bi(Pb)-Sr-Ca-Cu-O superconductor
,
null
,
null
