Al2O3颗粒粒径对SPS工艺制备Al2O3Al复合材料性能的影响.pdf

Hot 2013，V01．42，No．8 WorkingTechnology 复合材料性能的影响 郑刘斌，屈敏，赵明，刘峰斌 (北方工业大学机电工程学院，北京100144) 离子烧结(SPS)技术快速制备A120ffAl复合材料。研究了粒径为30 材料相对密度、显微结构及耐磨性能的影响。结果表明，当A1：O，增强颗粒粒径增大时，复合材料内部颗粒间粘结强度 越好．而相对密度和耐磨性能随之降低。 关键词：A1203颗粒；SPS；颗粒粒径；相对密度 中图分类号：TB333 文献标识码：A 文章编号：1001—3814(2013)08-0108-03 Effectsof ParticleSizeon Fabricated A1203／AI by A1203 Composite Plasma Spark Sintering ZHENG Liubin，QUMin，ZHAO Ming，LⅣFengbin andMechanical China ofElectrical 100144，China) (College Engineering，NorthUniversityofTechnology，Beijing influencesof sizeof onthe of were Abstract：The A1203 A1203／A1 studied．A1203／A1 particle properties composite was伍bricMed the weremixedthevolume A1203／Alpowders by composite bysparkplasmasintering(SPS)technology，and sizes．Theeffects ontherelative fractionof20％withdifferent of reinforcingparticle A1203reinforcingparticles density， andwearresistanceofthe under size and werestudied．The microstructure compositeparticleof30nm，O．5斗m，1Ixm3．6斗m results thatasthe size between in materialbecomes show A1203particleincreaing，thebondingstrength particlescomposite relative andwearresistance ofthe decreaseswiththeincr