METHOD FOR PRODUCING ALUMINUM NITRIDE MATERIAL, ALUMINUM NITRIDE MATERIAL, AND HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To relatively easily produce thick aluminum nitride.

SOLUTION: An aluminum-aluminum nitride composite 10 is produced by using aluminum 4 and magnesium nitride 8, wherein free energy change of a reaction occurring when the magnesium nitride 8 is mixed with the aluminum 4 at a temperature higher than a melting point of the aluminum 4 to form aluminum nitride is negative. In production of the aluminum-aluminum nitride composite 10, the aluminum 4 and the magnesium nitride 8 are located so that the aluminum nitride 9 contacts with a flat surface 5 of a die 1, and the aluminum 4 is nitrided with the magnesium nitride 8 by increasing temperature to 900-1,300°C in an argon gas atmosphere.

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