MANUFACTURING METHOD FOR ALUMINUM NITRIDE PARTICLE, MANUFACTURING APPARATUS OF ALUMINUM NITRIDE PARTICLE, AND ALUMINUM NITRIDE PARTICLE

• Main Authors: TAKIZAWA HIROTANE, FUKUSHIMA JUN, SENZU HIDEAKI
• Format: Patent
• Language: English; Japanese
• Published: 16.02.2017
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

PROBLEM TO BE SOLVED: To provide a manufacturing method for aluminum nitride particles, capable of obtaining aluminum nitride particles retaining the shape of raw-material aluminum particles, and heightening a nitriding rate; and to provide a manufacturing apparatus of aluminum nitride particles, and the aluminum nitride particle.SOLUTION: Alumina particles comprising θ aluminum particles and/or δ aluminum particles are mixed with carbon particles, and the mixture is heated in a nitrogen gas stream, to thereby obtain aluminum nitride particles in which at least each surface of raw-material aluminum particles is nitrided.SELECTED DRAWING: Figure 2 【課題】原料のアルミナ粒子の形状を保持した窒化アルミニウム粒子を得ることができ、窒化率を高めることができる窒化アルミニウム粒子の製造方法、窒化アルミニウム粒子の製造装置および窒化アルミニウム粒子を提供する。【解決手段】θアルミナ粒子および／またはδアルミナ粒子から成るアルミナ粒子とカーボン粒子とを混合し、その混合物を窒素気流中で加熱することにより、原料のアルミナ粒子の少なくとも表面が窒化された窒化アルミニウム粒子を得る。【選択図】図２