载荷对Al_2O_3增强Y-TZP陶瓷磨损特性的影响  

Effect of Load on Wear Properties of Alumina Strengthen Y-TZP Ceramic

作　　者：梁小平[1] 杨正方[2] 靳正国[2] 袁启明[2] 

机构地区：[1]天津工业大学材料科学与化工学院,天津300160 [2]天津大学先进陶瓷与加工技术教育部重点实验室,天津300072

出　　处：《摩擦学学报》2006年第1期60-63,共4页Tribology

基　　金：国家863计划资助项目(2002A33082)

摘　　要：采用往复式摩擦磨损试验机研究了10%(质量分数计)A l2O3增强四方氧化锆多晶Y-TZP陶瓷材料(简称10ADZ)在不同载荷下的磨损行为与机制.结果表明:随着载荷的增加和滑动时间的延长,10ADZ陶瓷的磨损率增大,但并非呈线性增加,磨损率增长幅度不同;在62 N低载荷条件下,10ADZ陶瓷的磨损机制以犁沟和塑性变形为主;在124 N载荷下其主要的磨损形式为塑性变形、微切削和微断裂;而在310 N的高载荷下其主要的磨损机制为断裂磨损.Wear properties of alumina strengthen yttria stabilized tetragonal zirconia polycrystal （Y-TZP） ceramic （ADZ） under different loads were investigated using a block-on-block tribometer. The results show that wear rate is, however, non- linearly increased with increasing of load and sliding time. Under low load of 62 N the main mechanism governing wear properties of ADZ ceramic is apparent plastic deformation and ploughing, wear loss is controlled by plastic deformation, micro-cutting, and micro-rupture under 124 N; and wear rate rapidly increases and wear mechanism changes into brittle fracture under high load of 310 N.

关 键 词：Al2O3增强Y-TZP陶瓷(ADZ) 载荷 磨损性能 

分 类 号：TQ174.758.12[化学工程—陶瓷工业] TH117.3[化学工程—硅酸盐工业]