摘要
提出一种新型的原位反应合成工艺——熔体反应法 ,以 Ti O2 、H3BO3、Na3Al F6 和 Al- Cu合金为原材料 ,采用熔体反应法制备了低成本的内生颗粒增强 Al- 4.5 Cu/ Ti B2 复合材料。Ti B2 颗粒细小 ,平均尺寸为 0 .93μm,均匀分布于基体之中 ,与基体结合良好。当 Ti B2 的含量为 10 vol%时 ,复合材料的抗拉强度为 416 .7MPa,屈服强度为 316 .9MPa,延伸率为 3.3%
A novel in situ reaction synthesis process, reaction technique in melt, was developed. An in situ particle reinforced Al 4.5 Cu/TiB 2 composite was fabricated with low cost TiO 2, H 3BO 3, Na 3AlF 6 powders and Al Cu alloy. TiB 2 particle is very small, about 0.93 μm in size, and it has spheric shape in the solidification microstructure of the composite. The distribution of TiB 2 particle in the matrix is uniform. The interface between TiB 2 particle and the matrix is combining well. The tensile strength, yield strength and elongation of the composite are 416.7 MPa, 316.9 MPa and 3.3%, respectively, when TiB 2 particle content in the matrix is 10 vol%.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2000年第1期76-80,共5页
Acta Materiae Compositae Sinica
基金
黑龙江省杰出青年基金! (黑科函 76号 )
国家教委博士点基金! ( 95 2 13 0 2 )
关键词
金属基复合材料
原位反应
铝
组织
性能
metal matrix composite
in situ reaction
aluminum
titanium diboride