【作者】 贺朝君； 汪维金； 刘晓明； 杨宁； 朱玉斌；

【Author】 HE Zhao-jun WANG Wei-jin LIU Xiao-ming YANG Ning ZHU Yu-bin (School of Material Science and Engineering,Shanghai University,Shanghai 200072,China)

【机构】 上海大学材料科学与工程学院；

【摘要】 以常规工业级钨粉和铜粉作为原料,制备了厚度均匀、密度较高的钨铜薄板坯,并对该薄板坯的烧结行为进行了系统地研究．结果表明,钨铜两相的润湿性对烧结致密化过程起主导作用,它在各温区所引起的致密化因素各异,使致密度变化程度不同．研究发现, 钨铜在高温液相烧结过程中的动力学特征,与非晶体粘性流动烧结理论相吻合．更多还原

【Abstract】 Thin W-Cu sheet compact with uniformity thickness and high density was produced by using commercial powders,and its sintering behavior was studied integrallty.The results show that the principal factor of sintering densification is the wetting property between tungsten and copper,the different change degree of relative density result from diverse factors which were led by wetting property.In addition,pseudo-alloy W-Cu was deemed to noncrystal in the process of liquid phase sintering,the sinter principle of W-Cu alloy was explained by the noncrytal viscous flow sintering theory from the angle of dynamics.更多还原