| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel aluminium nitride powder, having a particle size of a few of μm - a few of 10 μm and at the same time a good sphere particle forming ability, both of which are necessary as a raw powder (fillers) for a composite material using as fillers consisting of an inorganic material being charged to an organic material by improving the drawback a conventional aluminium nitride powder has, and a manufacturing method or a manufacturing device thereof. SOLUTION: Objective aluminium nitride powder is manufactured using a manufacturing method and a manufacturing device thereof to make progress a nitridation reaction in a gaseous phase and in presence of a flame by controlling the following technical conditions at the same time: (1) highly dispersed and stabilized fluidization or formation of aerosol state of the raw powder involved in a range of particle size of 0.001-500 μm, (2) utilization of direct nitridation or reductive nitridation using the regulation of gas atmosphere in the flame or the high temperature caused by the flame as driving force, and (3) ratio controlling between the raw material and the amount of the flame or continuation of the heat treatment steps. |
