【摘要】 本文研究了不同稀土添加剂在导电铜中的作用,发现稀土元素改变了夹杂物的形态,细化了晶粒(但Nd例外),提高了导电铜的机械性能;适量的稀土添加剂改变了导电铜中杂质存在的形态,净化了基体和晶界,改善了导电铜的导电性。更多还原

【Abstract】 The effect of different rare earth element additions in conductive copper is studied. The results show that rare earth element added can change the morphology of the nonmetallic inclusions and refine the grain in conductive copper, so that its mechanical properties are increased. If moderate rare earth elements add in conductive copper, the regular of impurties distribution is changed and growth rate of the grain is suppressed, resulting in improving of conductive properties of copper.更多还原