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Investigation on the Mechanical Properties and Chemical Stability of WC Fe/Ni/Co Cemented Carbides

CHEN Jun;TAN Ying-guo
Rare Metals and Cemented Carbides | Vol., Issue 3, 1999 | pp. 26-29
The study was carried out on the two WC Fe/Ni/Co cemented carbides whose binders are Fe+Co+Ni (10%) and Fe+Co+Ni(20%). The influence of elements of Fe, Ni,and their contents in the materials on mechanical properties and chemical stability was in vestigated. The experimental results show that Co could be successfully replaced by optimum Fe/Ni/Co binder using “dual grain structure” wet grinding process.
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Study of Mechanical Behavior of Low rhenium Molybdenum Alloys

LIU Sha;CAO Yu;SHU Jin-bo
Rare Metals and Cemented Carbides | Vol., Issue 3, 1999 | pp. 33-36
The mechanical behavior of Mo 3%Re alloys prepared by PM was investigated. It was observed that the relation between tensile strength and annealing temperature for the alloy wire specimens conformed to linear regression equation in the range of 900 to 1 400 ℃ annealing temperature. The Mo 3%Re alloy by dry wet mixing method exhibited higher tensile strength and higher recrystallization temperature as compared with that by dry mixing method. The recrystallization temperature for the Mo 3% Re alloy wires is around 1 200 ℃.
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About Saturation Magnetization Property of WC Co Cemented Carbide——An Indicator Related to Product Quality Control

WU Chong-hu;SUN Bao-qi
Rare Metals and Cemented Carbides | Vol., Issue 3, 1999 | pp. 45-51
The paper describes the concept and expression of saturation magnetization property of WC Co cemented carbide. Analysis is made of the related investigation on this property both at home and abroad with discussion for its use as an indicator related to product quality control.
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Development and Application of ITO Film

DUAN Xue-chen;YANG Xiang-ping
Rare Metals and Cemented Carbides | Vol., Issue 3, 1999 | pp. 58-60
The properties and applications ,preparation and market situation of indium tin oxide (ITO) films were reviewed. The new material features good properties, good photoelectrical properties and has wide applications in high technique areas,such as in liquid crystal display,solar energy battery, energy saving window glass and so on There is a good market for ITO films both in China and abroad About a half of indium products in the world is used for preparing ITO films China has rich indium resources and hence there is a vast potential market for ITO films in China.
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