High performance ceramic composites containing tungsten carbide
reinforced chromium carbide matrix
    1.
    发明授权
    High performance ceramic composites containing tungsten carbide reinforced chromium carbide matrix 失效
    包含碳化钨增强碳化铬基体的高性能陶瓷复合材料

    公开(公告)号:US5580833A

    公开(公告)日:1996-12-03

    申请号:US289599

    申请日:1994-10-11

    IPC分类号: C04B35/56

    CPC分类号: C04B35/645 C04B35/5607

    摘要: A high performance ceramic composite containing tungsten carbide reinforced chromium carbide matrix in which 5.about.35 vol % of tungsten carbide particles are uniformly dispersed in 65.about.95 vol % of chromium carbide matrix. The diameters of the tungsten carbide and chromium carbide particles are preferably in the rage between 0.1.about.10 .mu.m, and their average diameters are preferably at about 2.0 and 1.5 .mu.m, respectively. The tungsten carbide/chromium carbide composite is prepared from a sintering process by applying heat and pressure to a green compact containing tungsten carbide and chromium carbide particles, without using a metallic sintering aid. As a result, the tungsten carbide reinforced chromium carbide composite retains all the advantageous characteristics of the chromium carbide material, such as excellent strength, hardness, anti-oxidation, anti-scaling, anti-erosion and anti-corrosion properties as well as excellent permanent non-magnetizability and surface lustrousness, while providing improved flexural strength and fracture toughness. The tungsten carbide reinforced chromium carbide composite is most suitable for industrial applications where reliability is critical.

    摘要翻译: 包含碳化钨增强碳化铬基体的高性能陶瓷复合材料,其中5%的碳化钨颗粒均匀分散在65%的碳化铬基体中。 碳化钨和碳化铬颗粒的直径优选在0.1μm之间,平均直径分别优选为约2.0μm和1.5μm。 碳化钨/碳化铬复合材料通过在不使用金属烧结助剂的情况下通过对含有碳化钨和碳化铬颗粒的生坯进行加热和加压来制备。 结果,碳化钨增强碳化铬复合材料保留了碳化铬材料的所有有利特性,如优异的强度,硬度,抗氧化,抗结垢,抗侵蚀和抗腐蚀性能以及优异的永久性 不易磁化和表面光泽,同时提供改善的弯曲强度和断裂韧性。 碳化钨增强碳化铬复合材料最适用于可靠性至关重要的工业应用。

    Chromium carbide based ceramics composite block gauge
    3.
    发明授权
    Chromium carbide based ceramics composite block gauge 失效
    碳化铬基陶瓷复合块规

    公开(公告)号:US5470807A

    公开(公告)日:1995-11-28

    申请号:US405832

    申请日:1995-03-17

    IPC分类号: C04B35/56

    CPC分类号: C04B35/645 C04B35/5607

    摘要: A composite ceramic block gauge and its preparing method is disclosed. The ceramic block gauge comprises a tungsten carbide (WC) reinforced phase and a chromium carbide (Cr.sub.3 C.sub.2) matrix. The finished block gauge possesses excellent properties such as hardness and corrosion resistance and high reflectivity. The block gauges made from Cr.sub.3 C.sub.2 /WC composites can be calibrated using the traditional optical interferometry techniques.

    摘要翻译: 公开了一种复合陶瓷块规及其制备方法。 陶瓷块规包含碳化钨(WC)增强相和碳化铬(Cr3C2)基体。 成品块规具有优异的性能,如硬度和耐腐蚀性以及高反射率。 可以使用传统的光学干涉测量技术对Cr3C2 / WC复合材料制成的块尺进行校准。