碳化物/钢基复合材料原料球磨效果及其电子理论分析Ball milling effects of raw materials for carbide/steel matrix composite and electron theory analysis
杨瑞成,赵丽美,吕学飞,王军民
摘要(Abstract):
对碳化钛、碳化钨/钢基复合材料原料粉体进行了球磨试验和相应粒度变化等的SEM等分析。结果表明:作为硬质相的WC、TiC球磨细化效果最佳;作为基体材料的体心立方金属球磨效果较好(且Mo>Cr>Fe),面心立方镍的球磨效果较差,石墨仅初期球磨效果好。运用固体与分子经验电子理论,结合原料单质的键性质和晶体结构特征分析了实验结果,并依据计算得到的价电子结构参数(nA值与η值及键络均衡性)剖析了以上复合材料原料单质球磨行为的差异。
关键词(KeyWords): 球磨;碳化物/钢基复合材料;经验电子理论(EET);价电子结构
基金项目(Foundation): 甘肃省自然科学基金资助项目(ZR-96-061)
作者(Author): 杨瑞成,赵丽美,吕学飞,王军民
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