The abrasive wear behaviour of austeniticmedium manganese steels was studied under weakcorrosion-abrasive wear simulating the linerplate in wet metallic ore bai
The synthesis kinetics of YBa<sub>2</sub>Cu<sub>3</sub>0<sub>x</sub> supercon-ductor was studied through comparing the calcina-tion (sintering) processes of diffe
Since the discovery of high T_c super-conductor, much effort was made toits application. More and more evidencehas revealed that most promising fieldof high T_c