文档介绍：第30卷第1期 Vol130 No11 材料科学与工程学报 JournalofMaterialsScience&Engineering 总第135期 文章编号:1673-2812(2012)01-0140-05 锂铝硅微晶玻璃自增强机制分析及表面强化技术进展李要辉,傅国英,成惠峰,吴云龙(中国建筑材料科学研究总院,玻璃科学研究院,北京 100024) =摘要>锂铝硅(LAS)微晶玻璃凭借优异的零膨胀特性和较高的可见光透过率获得了广泛的应用和研究。LAS微晶玻璃中大量的石英固溶体颗粒对裂纹扩展有明显的阻碍作用,裂纹尖端的应力释放和裂纹弯曲等独特的断裂机制可有效实现结构自增强。鉴于LAS微晶玻璃和基础玻璃的相似性,在保持零膨胀和高透过的前提下,其表面强韧化技术成为其另一个重要的研究方向。本文全面论述了国内外锂铝硅微晶玻璃表面强韧化处理技术的研究进展,对我国今后该领域的技术创新和应用具有指导作用。=关键词>锂铝硅微晶玻璃;力学性能;表面增强;裂纹扩展中图分类号:TQ171173 +3;TQ171171 +2 文献标识码:A Self-reinforcedMechanismofLithiumAluminosilicateGlass-ceramics andtheProgressofSurfaceStrengtheningTechnology LIYao-hui,FUGuo-ying,CHENGHu-ifeng,WUYun-long (ChinaBuildingMaterialAcademy,Beijing100024,China) =Abstract> Lithiumaluminosilicate(LAS)glass-ceramicshaveattractedconsiderableresearchand -quartzsolid solutiongrainscouldlimitthefurtherdevelopmentoftheflawsizeevidentlybycausingcrackdivertorblunt, whichindicatesthespecialfracturecharacteristicsandcrystallizationstrengtheninginLASglass-ceramics. Owingtothesimilaritywithparentglass,thesurfacestrengtheningtechnologyofLASglass-ceramicshas ,thedevelopmentsofstudy onsurfacestrengtheningofLASglass-ceramicswerefullydiscussed,anditisusefultothetechnicalinnovation andapplicationinthisdomain. =Keywords> lithiumaluminosilicateglass-ceramics;mechanicalproperties;surf