這共晶成分的熔化溫度低于操作溫度.This eutectic composition has a melting temperature lower than the operating temperature.對(duì)共晶硅形態(tài)的變化機(jī)理也作了初步探討.The mechanism of this change also was researched preliminarily.本文設(shè)計(jì)了 Nb -Si基共晶自生復(fù)合材料的成分體系,并采用真空...