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Cubic boron nitride polycrystal and heat sink using same
A cubic boron nitride polycrystal containing 99.5% by volume or more of cubic boron nitride, the cubic boron nitride polycrystal having a thermal conductivity of 300 W/mK or more and a carbon content of 100 ppm to 1000 ppm (inclusive) on a mass basis, the cubic boron nitride polycrystal containing a plurality of crystal grains, the cubic boron nitride polycrystal being characterized in that: the cubic boron nitride polycrystal contains a cubic boron nitride having a specific surface area of 1-5 [mu] m; the median diameter (d50) of the circle-equivalent diameter of the plurality of crystal grains is 0.9 [mu] m or more and 10 [mu] m or less.
一种立方晶氮化硼多晶体，其包含99.5体积％以上的立方晶氮化硼，其中，所述立方晶氮化硼多晶体的导热系数为300W/mK以上，所述立方晶氮化硼多晶体的碳含有率以质量基准计为100ppm以上且1000ppm以下，所述立方晶氮化硼多晶体包含多个晶粒，所述多个晶粒的当量圆直径的中值粒径d50为0.9μm以上且10μm以下。
Cubic boron nitride polycrystal and heat sink using same
A cubic boron nitride polycrystal containing 99.5% by volume or more of cubic boron nitride, the cubic boron nitride polycrystal having a thermal conductivity of 300 W/mK or more and a carbon content of 100 ppm to 1000 ppm (inclusive) on a mass basis, the cubic boron nitride polycrystal containing a plurality of crystal grains, the cubic boron nitride polycrystal being characterized in that: the cubic boron nitride polycrystal contains a cubic boron nitride having a specific surface area of 1-5 [mu] m; the median diameter (d50) of the circle-equivalent diameter of the plurality of crystal grains is 0.9 [mu] m or more and 10 [mu] m or less.
一种立方晶氮化硼多晶体，其包含99.5体积％以上的立方晶氮化硼，其中，所述立方晶氮化硼多晶体的导热系数为300W/mK以上，所述立方晶氮化硼多晶体的碳含有率以质量基准计为100ppm以上且1000ppm以下，所述立方晶氮化硼多晶体包含多个晶粒，所述多个晶粒的当量圆直径的中值粒径d50为0.9μm以上且10μm以下。
Cubic boron nitride polycrystal and heat sink using same
立方晶氮化硼多晶体以及使用了该立方晶氮化硼多晶体的散热器
ISHIDA YUH (Autor:in) / KUKINO SATORU (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Sintered cubic boron nitride and heat sink using same
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