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首页> 外文期刊>Journal of Materials Research >Density- and hardness-optimized pressureless sintered and post-hot isostatic pressed B4C
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Density- and hardness-optimized pressureless sintered and post-hot isostatic pressed B4C

机译：密度和硬度优化的无压烧结和后热等静压B4C

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Pressureless sintered B4C relative densities as high as 96.7% were obtained by optimizing the soak temperature, and holding at that temperature for the minimum time required to reach terminal density. Although the relative densities of pressureless sintered specimens were lower than that of commercially produced hot-pressed B4C, their (Vickers) hardness values were comparable. For 4.45-cm-diameter, 1.35-cm-high disk-shaped specimens, pressureless sintered to at least 93.0% relative density, post-hot isostatic pressing resulted in vast increases in relatives densities (e.g., 100.0%) and hardness values significantly greater than that of commercially produced hot-pressed B4C.
机译：通过优化均热温度，并在该温度下保持达到终端密度所需的最短时间，可获得高达96.7％的无压烧结B4C相对密度。尽管无压烧结样品的相对密度低于商业生产的热压B4C，但它们的（维氏）硬度值相当。对于直径为4.45厘米，高1.35厘米的圆盘状样品，无压力烧结至相对密度至少93.0％，热等静压后的相对密度大幅增加（例如100.0％），硬度值显着提高比商业生产的热压B4C

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