高压物理学报

用（C₂H₅）₂O·BF₃和Li₃N苯热合成cBN机理探讨

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王少波 ¹ , 徐晓伟 ¹ , 范慧俐 ² , 郑延军 ² , 李玉萍 ¹

高压物理学报 | 2006,20(1): 29-33

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高压物理学报 | 2006 , 20 (1) : 29 -33

用（C₂H₅）₂O·BF₃和Li₃N苯热合成cBN机理探讨

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王少波¹, 徐晓伟¹, 范慧俐², 郑延军², 李玉萍¹

作者信息

^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

通讯作者:

徐晓伟（1956—），男，博士，教授，主要研究方向为超硬材料的合成与应用. E-mail：xuxw@mater.ustb.edu.cn

作者简介:

王少波（1977—），男，硕士研究生.

Discussion on the Mechanism of cBN Synthesized by Benzene Thermal Method Using (C₂H₅)₂O·BF₃ and Li₃N as Reactants

Shao-Bo WANG¹, Xiao-Wei XU¹, Hui-Li FAN², Yan-Jun ZHENG², Yu-Ping LI¹

Affiliations

^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

出版时间: 2006-03-05

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摘要

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以（C₂H₅）₂O·BF₃和Li₃N为原料，于苯热条件下合成氮化硼并研究其相变机理。X射线粉末衍射和傅立叶变换红外吸收光谱分析证明，产物中不仅有hBN和cBN物相存在，而且还发现了正交氮化硼（oBN）和锂硼氮的常压相Li₃BN₂（O）及高压相Li₃BN₂（T）存在。分析了Li₃BN₂在高温高压条件下和在苯热条件下对合成cBN催化机制的差异，探讨了Li₃BN₂在以Li₃N和（C₂H₅）₂O·BF₃为原料合成BN的催化机制，提出常压相Li₃BN₂（O）和高压相Li₃BN₂（T）分别对生成cBN和oBN起催化作用的观点。

关键词

苯热法 / 氮化硼 / 硼氮化锂 / 三氟化硼乙醚 / 氮化锂

Abstract

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BN is synthesized by benzene thermal method using (C₂H₅)₂O·BF₃ and Li₃N as reactants and its phase transition mechanism is studied. Not only hBN and cBN are found in the products testified by XRD and FTIR, but also oBN, atmosphere form Li₃BN₂(O) and high pressure form Li₃BN₂(T) are discovered. The differences of cBN catalytic mechanism between high pressure and high temperature method and benzene thermal synthesis method are analyzed. Furthermore, the catalytic mechanism of Li₃BN₂ to synthesize BN using Li₃N and (C₂H₅)₂O·BF₃ as reactants is discussed. At the same time, it stands out the atmosphere form Li₃BN₂(O) and the high pressure form Li₃BN₂(T) can catalyze the synthesis of cBN and oBN, respectively.

Key words

benzene thermal method / boron nitride / lithium boron nitride / boron trifluoride etherate / lithium nitride

引用本文

王少波, 徐晓伟, 范慧俐, 郑延军, 李玉萍. 用（C₂H₅）₂O·BF₃和Li₃N苯热合成cBN机理探讨. 高压物理学报, 2006 , 20 (1) : 29 -33 .

Shao-Bo WANG, Xiao-Wei XU, Hui-Li FAN, Yan-Jun ZHENG, Yu-Ping LI. Discussion on the Mechanism of cBN Synthesized by Benzene Thermal Method Using (C₂H₅)₂O·BF₃ and Li₃N as Reactants[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (1) : 29 -33 .

基金

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国家自然科学基金(20273007; 50372006)

参考文献

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参考文献引证文献

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2006年第20卷第1期

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接收时间：2005-01-04
首发时间：2026-11-01
出版时间：2006-03-05

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出版历史

收稿日期：2005-01-04
修回日期：2005-03-29

基金

国家自然科学基金(20273007; 50372006)

作者信息

^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

通讯作者:

徐晓伟（1956—），男，博士，教授，主要研究方向为超硬材料的合成与应用. E-mail：xuxw@mater.ustb.edu.cn

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https://castjournals.cast.org.cn/joweb/gywlxb/CN/1323703484935176622

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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