LaMgAl11O19加入对8YSZ 材料力学性能的影响.pdf

40卷第1期 人 工 晶 体 学 报 v01．40 No．1 201 OF CRYSTALS JOURNALSYNTHETIC 1 1年2月 February．201 LaMgAlll019加入对8YSZ材料力学性能的影响 李吉皎，房明浩，黄赛芳，黄朝晖，刘艳改 (中国地质大学(北京)材料科学与工程学院，北京100083) h 性能的影响。结果表明，添加板片状LaMgAl。0。，可较明显地改善8YSZ陶瓷的力学性能。当hMgAl。。O。，的添加量 为20wt％时，8YSZ基复相陶瓷的抗弯强度和断裂韧性分别为297．4MPa和4．0MPa·nl”2。 关键词：8YSZ；LaMgAl¨0I，；抗弯强度；断裂韧性 中图分类号：TB332 文献标识码：A Effectsof Additiononthe of Mechanical LaMgAlll019 Properties 8YSZMaterials ⅡJi-jiao，FANG胁ng—hao，HUANGSai扣ng，HUANGZhao—hui，LIU Yan—gai ofMaterialsScienceand of (School Technology，ChinaUniversity 100083，China) Geoscjenc∞(Beijing)，Beijing 24 5November (ReceivedAugust2010，accepted2010) orderto themechanical of8YSZ was Abstract：Inimprove properties material，plate—likeLaMgAlll019 of8YSZ addedfor ceramic．Theeffectsof additiononthe strengthening—toughening LaMgAlll019 phase andmechanical were results composition，relativedensi哆，microstructurepropertiesinvestigated．The showthatthemechanical of8YSZceramic when properties improvedobviouslyplat