ZnO及填料对磷酸铬铝基复合材料性能的影响  

The influence of zinc oxide and fillers on the properties of aluminum-chromium-phosphate matrix composite

作　　者：田帅[1] 霍冀川[1] 雷永林[1] 陈宁[1] 

机构地区：[1]西南科技大学四川省非金属复合与功能材料重点实验室,四川绵阳621010

出　　处：《功能材料》2013年第7期979-982,987,共5页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)重点资助项目(2009AA035002)

摘　　要：以磷酸铬铝(ACP)为基体,高硅氧纤维布为增强材料,Cr2O3和Al2O3为填料,通过热压成型制得磷酸铬铝基复合材料。采用TG-DSC和XRD等探讨了磷酸铬铝基体的固化特性和耐热性能,并研究了复合填料、纳米填料及热压工艺对材料力学性能的影响。结果表明,ZnO可以降低磷酸铬铝的固化温度并促进其晶型转变;复合填料Cr2O3和Al2O3可以提高材料的耐热性,当Cr2O3和Al2O3之比为7∶3且纳米Cr2O3加入量为5%时,复合材料的力学性能最好,其拉伸强度为95.2MPa,弯曲强度为190.02MPa。High silica glass fiber/ Al-Cr-phosphate（ACP） composites were prepared by a low temperature hardening process with Al2O3 and Cr2O3 as matrix material＇s fillers.The TG-DSC and XRD measurements were used to study the ACP properties.The effects of the composite fillings,nanofiller and hot pressing process on the mechanical properties of the composites were studied.Experimental results indicate that the zinc oxide can reduce the curing temperature of the ACP and to promote its crystal transformation;the composite fillers Cr2O3 and Al2O3 can improve the heat resistance of the material,when Cr2O3 and Al2O3 ratio was 7∶3 and the amount of nano-Cr2O3 filler is 5%,the mechanical properties of the obtained composite are the best,of which the tensile strength was 95.2MPa and the flexural strength was 190.02MPa.

关 键 词：磷酸铬铝 复合材料 纳米填料 固化剂 

分 类 号：TB332[一般工业技术—材料科学与工程]