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首页> 外文期刊>Solid Fuel Chemistry >EFFECT OF ANISOMETRY OF FILLER PARTICLES AND PRESSING METHOD ON THE DENSITY AND THERMAL EXPANSION COEFFICIENT OF FINE-GRAINED GRAPHITES
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EFFECT OF ANISOMETRY OF FILLER PARTICLES AND PRESSING METHOD ON THE DENSITY AND THERMAL EXPANSION COEFFICIENT OF FINE-GRAINED GRAPHITES

机译：填料颗粒的各向异性和加压方法对细粒石墨密度和热膨胀系数的影响

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摘要

The authors have studied the effect of the anisometry of filler particles and pressing method on the density and thermal expansion coefficient (TEC) of fine-grained graphites based on isotropic and anisotropic fillers. It is shown that in the case of unidirectional pressing the increase in size of filler particles or the decrease of their anisometry leads to an increase in the density of pressed blanks. In the case of isostatic pressing the anisometric particles of the filler are oriented randomly, which lowers the density of graphites. The production of dense isotropic graphites with a thermal expansion coefficient of the order of 3.3x 10~(-6) K~(-1) with the use of fillers with anisometric particles is possible when use is made of two-component fillers containing up to 40% (and more) of fine particles with a shape close to isometric.
机译：作者研究了填料颗粒的各向异性和压制方法对基于各向同性和各向异性填料的细晶粒石墨的密度和热膨胀系数（TEC）的影响。结果表明，在单向压制的情况下，填料颗粒尺寸的增加或其等轴测图的减小导致压制坯料密度的增加。在等静压的情况下，填料的等轴测颗粒随机取向，这降低了石墨的密度。当使用含有等分颗粒的填料时，可以使用带有等距颗粒的填料生产热膨胀系数约为3.3x 10〜（-6）K〜（-1）的致密各向同性石墨。 40％（或更多）形状接近等轴测的细颗粒。

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