摘要
研究了Al2O3增强颗粒粒径对铝基复合材料性能的影响,将Al2O3和Al粉20vol%比例混合,利用放电等离子烧结(SPS)技术快速制备Al2O3/Al复合材料。研究了粒径为30 nm、0.5μm、1μm、3.6μm的Al2O3增强颗粒对该复合材料相对密度、显微结构及耐磨性能的影响。结果表明,当Al2O3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。
The influences of particle size of Al2O3 on the properties of Al2O3/Al composite were studied. Al2O3/Al composite was fabricated by spark plasma sintering （SPS） technology, and the Al2O3/Al powders were mixed by the volume fraction of 20% with different reinforcing particle sizes. The effects of Al2O3 reinforcing particles on the relative density, microstmcture and wear resistance of the composite under particle size of 30nm, 0.5 μm, lp, m and 3.6 μm were studied. The results show that as the Al2O3 particle size increaing, the bonding strength between particles in composite material becomes better. However, the relative density and wear resistance property of the composite decreases with the increase of Al2O3 particle size.
出处
《热加工工艺》
CSCD
北大核心
2013年第8期108-110,共3页
Hot Working Technology
基金
国家自然科学基金资助项目(51075004)
科技部支撑计划资助项目(2011BAE21B01)
北京市教委科研计划资助项目(KM201110009013)
关键词
AL2O3颗粒
SPS
颗粒粒径
相对密度
Al2O3 particle
SPS（Spark Plasma Sintering）
particle size
relative density
