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COMPOSITE PARTICLE OF MELAMINE BORATE AND BORON NITRIDE, AND METHOD FOR PRODUCING BORON NITRIDE PARTICLE USING THE SAME
COMPOSITE PARTICLE OF MELAMINE BORATE AND BORON NITRIDE, AND METHOD FOR PRODUCING BORON NITRIDE PARTICLE USING THE SAME
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机译:三聚氰胺硼酸盐和硼氮化物的复合粒子,以及使用该粒子制备硼氮化物的方法
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摘要
PROBLEM TO BE SOLVED: To provide boron nitride particles excellent in thermal conductivity, and a method for producing the same.;SOLUTION: A composite particle having a 40-300 μm average particle size comprises melamine borate, and scale-like boron nitride powder having a ≤2.0 graphitization index (GI) by a powder X-ray diffraction method and a 5-40 μm average particle size. In a method for producing composite particles, spray granulation is performed by using slurry containing a 10-50 pts.mass mixture having 1.0-20 pts.mass scale-like boron nitride to 100 pts.mass melamine borate, with respect to 100 pts.mass aqueous solution containing a 0.05-1.0 mass% organic binder. In a method for producing boron nitride particles, the composite particles are fired at 600-1,300°C in a non-oxidative atmosphere, and then fired again at 1,600-2,200°C in the non-oxidative atmosphere.;COPYRIGHT: (C)2012,JPO&INPIT
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