Function of Ca<sub>3</sub>N<sub>2</sub> in the Formation of BN

ZHAO Hongmei; XU Xiaowei; LIU Zhifu; LI Yuping

doi:10.13374/j.issn1001-053x.2001.03.037

Volume 23 Issue 3

Aug. 2021

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Article Navigation > Chinese Journal of Engineering > 2001 > 23(3): 234-236

ZHAO Hongmei, XU Xiaowei, LIU Zhifu, LI Yuping. Function of Ca3N2 in the Formation of BN[J]. Chinese Journal of Engineering, 2001, 23(3): 234-236. doi: 10.13374/j.issn1001-053x.2001.03.037

Citation:

ZHAO Hongmei, XU Xiaowei, LIU Zhifu, LI Yuping. Function of Ca₃N₂ in the Formation of BN[J]. Chinese Journal of Engineering, 2001, 23(3): 234-236. doi: 10.13374/j.issn1001-053x.2001.03.037

ZHAO Hongmei, XU Xiaowei, LIU Zhifu, LI Yuping. Function of Ca3N2 in the Formation of BN[J]. Chinese Journal of Engineering, 2001, 23(3): 234-236. doi: 10.13374/j.issn1001-053x.2001.03.037

Citation:

ZHAO Hongmei, XU Xiaowei, LIU Zhifu, LI Yuping. Function of Ca₃N₂ in the Formation of BN[J]. Chinese Journal of Engineering, 2001, 23(3): 234-236. doi: 10.13374/j.issn1001-053x.2001.03.037

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Function of Ca₃N₂ in the Formation of BN

doi: 10.13374/j.issn1001-053x.2001.03.037

Material Science and Engineering school, UST Beijing, Beijing 100083, China

Received Date: 2000-11-23

Abstract

Abstract

The function of Ca₃N₂ on the reaction between B₄C and NH₄Cl was investigated.Under normal pressure and high temperature. The results showed that there was small amount of hBN formed in the reaction at 950℃, and little change took place after Ca₃N₂ was added. The amount of hBN achieved from the reaction at 1200℃ was more than that at 950℃, and much more hBN was gained after adding Ca₃N₂. It was concluded that Ca₃N₂ performed catalytic function in the formation of hBN. In addition, the results also indicated that the catalytic function of Ca₃N₂ was less ho that of Li₃N, and they could only act as catalyst at melting state.
- Ca₃N₂,
- BN,
- Li₃N,
- catalyst