Ag/SnO_2材料挤压变形过程中的性能研究  

The strengthening mechanism of Ag/SnO_2 materials in the severe plastic deformation

作　　者：张志伟[1] 沈喜海[1] 张卫国[1] 邵丽君[1] 王月辉[1] 廉琪[1] 

机构地区：[1]河北科技师范学院,河北秦皇岛066600

出　　处：《粉末冶金技术》2011年第2期102-104,109,共4页Powder Metallurgy Technology

基　　金：国家自然科学基金资助项目(A020214)

摘　　要：采用反应合成法制备了Ag/SnO2材料,研究了Ag/SnO2材料的强化机制。经SEM分析表明,反应合成法制备的Ag/SnO2材料经过剧烈塑性变形后,类纤维组织逐渐消失,SnO2颗粒逐渐弥散到Ag基体中;反应合成制备的材料的强化机制主要是类纤维强化。Ag/SnO2 materials were fabricated by reactive synthesis,and the strengthening mechanism was in-vestigated.By analyzing SEM photographs,it is indicated that the fiber-like microstructure of the Ag/SnO2 materials processed by severe plastic deformation vanishes gradually,and the SnO2 particles disperse in the Ag matrix.It is demonstrated that the strengthening mechanism of Ag/SnO2 materials is the fiber-like strengthening mechanism.

关 键 词：Ag/SnO_2材料 大塑性变形 反应合成法 类纤维强化 

分 类 号：TB301[一般工业技术—材料科学与工程]