Catalytic Function of Mg3N2 in the Formation of hBN

Abstract

Abstract: The function of Mg3N2 in the reaction between B4C and NH4Cl has been investigated under normal pressure and high temperature.Results of FTIR and XRD analysis indicated that under 950℃and N2 condition,no hBN was obtained from Mg3N2-B4C reaction and only small amount of hBN was found in the product of B4C-NH4Cl system，while large amount of hBN was achieved from the product of B4C-NH4Cl-Mg3N2 system.The catalytic function of Mg3N2 is proposed from these reactions.

Key words: The function of Mg3N2 in the reaction between B4C and NH4Cl has been investigated under normal pressure and high temperature.Results of FTIR and XRD analysis indicated that under 950℃and N2 condition,no hBN was obtained from Mg3N2-B4C reaction and only small amount of hBN was found in the product of B4C-NH4Cl system，while large amount of hBN was achieved from the product of B4C-NH4Cl-Mg3N2 system.The catalytic function of Mg3N2 is proposed from these reactions.

CLC Number:

TQ163

XU Xiao-wei;LIU Zhi-fu;ZHAO Hong-mei;LI Yu-ping. Catalytic Function of Mg3N2 in the Formation of hBN[J]. Journal of Synthetic Crystals, 2001, 30(1): 89-92.

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Catalytic Function of Mg3N2 in the Formation of hBN

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