HIGH TOUGHNESS CERAMIC COMPOSITES
    1.
    发明申请
    HIGH TOUGHNESS CERAMIC COMPOSITES 审中-公开
    高韧性陶瓷复合材料

    公开(公告)号:WO2011011601A2

    公开(公告)日:2011-01-27

    申请号:PCT/US2010042905

    申请日:2010-07-22

    Abstract: A method of forming a sintered silicon carbide body includes mixing silicon carbide powder having an oxygen content of less than about 3 wt% and having a surface area in a range of between about 8 m /g and about 15 m /g, with boron carbide powder and carbon sintering aid to form a green silicon carbide body. Alternatively, a method of producing a sintered silicon carbide body includes mixing the silicon carbide powder with titanium carbide powder having an average particle diameter in a range of between about 5 nm and about 100 nm and with carbon sintering aid to form a green silicon carbide body. In another alternative, a method of forming a sintered silicon carbide body includes mixing silicon carbide powder with boron carbide powder, the titanium carbide powder, and carbon sintering aid to form a green silicon carbide body. After sintering, the silicon carbide bodies have a density at least 98% of the theoretical density of silicon carbide.

    Abstract translation: 形成烧结碳化硅本体的方法包括将具有小于约3重量%的氧含量低于约8m 2 / g至约15m 2 / g的表面积的碳化硅粉末与碳化硼混合 粉末和碳烧结助剂形成绿色碳化硅体。 或者,制造烧结碳化硅体的方法包括将碳化硅粉末与平均粒径在约5nm至约100nm范围内的碳化钛粉末和碳烧结助剂混合以形成绿碳化硅体 。 在另一个替代方案中,形成烧结碳化硅本体的方法包括将碳化硅粉末与碳化硼粉末,碳化钛粉末和碳烧结助剂混合以形成绿碳化硅体。 烧结后,碳化硅体的密度为碳化硅理论密度的至少98%。

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