Li3N、Mg3N2、Ca3N2催化作用的比较和分析

徐晓伟; 李玉萍; 赵红梅; 范慧俐; 张永杰

doi:10.11858/gywlxb.2003.02.011

Li3N、Mg3N2、Ca3N2催化作用的比较和分析

doi: 10.11858/gywlxb.2003.02.011

1.
北京科技大学材料科学与工程学院，北京 100083；
2.
北京科技大学应用科学学院，北京 100083

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通讯作者:
徐晓伟

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- 文章访问数: 7641
- HTML全文浏览量: 606
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出版历程
- 收稿日期: 2002-07-15
- 修回日期: 2002-09-27
- 发布日期: 2003-06-05

Study on the Catalytic Function of Li3N, Mg3N2, Ca3N2

1.
Material Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2.
Applied Science School, University of Science and Technology Beijing, Beijing 100083, China

More Information

Corresponding author: XU Xiao-Wei

摘要

摘要: Li3N、Mg3N2和Ca3N2是高温高压下以hBN为原料合成cBN的催化剂。在实验中发现它们对常压高温下生成hBN的反应也表现出催化作用。对比了三种氮化物催化效果的差异，发现三种氮化物都只有在熔融状态下才能表现出催化效果，以及三种氮化物对生成hBN反应的催化效果与它们在高温高压下合成cBN反应的催化效果次序相似。提出了对合成hBN有催化作用的化合物也将对合成cBN表现出催化作用的观点。
- 催化剂 /
- 氮化锂 /
- 氮化镁 /
- 氮化钙
Abstract: It is well known that Li3N, Mg3N2 and Ca3N2 are catalysts for cBN synthesis under high temperature and high pressure. We discovered that they could also act as catalysts for hBN formation at high temperature and normal pressure. It is confirmed that, from a series comparative experiments, each of them has catalysts effect only on melting condition, the catalytic order for hBN formation is Li3NMg3N2Ca3N2, which is similar to that for cBN synthesis. The suggestion that a catalyst for hBN formation may also be a catalyst for cBN synthesis may be reliable.
- catalyst /
- Li3N /
- Mg3N2 /
- Ca3N2

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参考文献(13)

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文章访问数: 7641
HTML全文浏览量: 606
PDF下载量: 803

Li3N、Mg3N2、Ca3N2催化作用的比较和分析

doi: 10.11858/gywlxb.2003.02.011

通讯作者: 徐晓伟

计量

出版历程

Study on the Catalytic Function of Li3N, Mg3N2, Ca3N2

Corresponding author: XU Xiao-Wei

计量

出版历程

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通讯作者:
徐晓伟