The addition of Pb in the superconductors of BiSrCaCuO system is very helpful for growth of the high-T<sub>c</sub> phase(T<sub>c</sub>110K).We prepared a series o
The LPE growth of quaternary InAs<sub>1-x-y</sub>P<sub>x</sub>Sb<sub>y</sub> with x=0.2 and y=0.09 on InAs substrate has been studied.This composi-tion is very
Temperature stability and toughness of magnets are very important properties especially for application in motor. In this paper, it is found that temperature st
The grain size control of the tungsten powder is essential for high quality tungsten products making. Based on the studies onthe hydrogen reduction process of t