以Ti粉、B4C粉和SiC粉为原料,用真空热压烧结工艺制备了原位自生颗粒增强的Ti-B-Si-C系钛基复合材料,研究了复合材料的显微组织和力学性能。结果表明,使用的初始粉末不同,原位自生颗粒的组成不同,复合材料的性能也有明显的差别。
A in-situ Ti-B-C-Si composite with fine TiB2,TiC and Ti-Si phase dispersed in composite was synthesized using titanium,B4C and SiC powders using hot-pressing sintering.The microstructure and mechanical properties of the composite were observed by using X-ray diffraction（XRD） analysis,scanning electron microscope and mechanical property testing.The results show that starting powder reactants have much effect on in-situ phase content and mechanical properties in titanium matrix composites.
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