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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