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硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (3): 1078-1084.

• 新型功能材料 • 上一篇    下一篇

三聚氰胺对直接氮化法合成氮化铝纳米线的影响

刘藜, 向道平   

  1. 海南大学,南海海洋资源利用国家重点实验室,海口 570228
  • 收稿日期:2021-10-19 修回日期:2021-12-08 出版日期:2022-03-15 发布日期:2022-04-08
  • 通讯作者: 向道平,教授。E-mail:1301595695@qq.com
  • 作者简介:刘 藜(1996—),男,硕士研究生。主要从事纳米氮化铝的研究。E-mail:1216088773@qq.com
  • 基金资助:
    国家自然科学基金(52064012)

Effect of Melamine on Synthesis of Aluminum Nitride Nanowires by Direct Nitriding Method

LIU Li, XIANG Daoping   

  1. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
  • Received:2021-10-19 Revised:2021-12-08 Online:2022-03-15 Published:2022-04-08

摘要: 由于氮化铝纳米线具有优异的导热性,国内外学者对其进行了广泛研究。本文以三聚氰胺和氟化钇为添加剂,采用直接氮化法制备了氮化铝纳米线。利用X射线衍射(XRD)、扫描电镜(SEM)、高分辨率透射电子显微镜(HRTEM)、能谱仪(EDS)等表征了氮化铝纳米线的晶体结构和微观形貌,分析了三聚氰胺和氟化钇对氮化反应的促进作用,研究了不同含量的三聚氰胺和不同反应温度对制备氮化铝纳米线的影响。结果表明:添加三聚氰胺可以提高氮化反应速率,促进纳米线的生成;当反应温度为1 200 ℃,铝粉和三聚氰胺质量比为1∶4,氟化钇掺量为5%(质量分数)时,成功制得了高长径比的氮化铝纳米线。

关键词: AlN纳米线, 三聚氰胺, 热管理材料, 导热填料, 直接氮化法, 生长机理

Abstract: Aluminum nitride (AlN) nanowires have been studied extensively by scholars due to their excellent thermal conductivity. Aluminum nitride nanowires were prepared by direct nitriding method using melamine and yttrium fluoride as additives. The crystal structure and microscopic morphology of the reaction product were carried out by X-ray diffraction (XRD), scanning electron microscope (SEM), high resolution transmission electron microscope (HRTEM) and energy spectrometer (EDS). The promoting effects of melamine and yttrium fluoride on nitriding reaction were analyzed. The effects of different melamine content and different reaction temperatures were studied on the preparation of aluminum nitride nanowires. The results show that the addition of melamine increases the nitridation reaction rate and promotes the formation of nanowires. When the reaction temperature is 1 200 ℃, the mass ratio of aluminum powder to melamine is 1∶4, and the content of yttrium fluoride is 5% (mass fraction), aluminum nitride nanowires with high aspect ratio are successfully prepared.

Key words: AlN nanowire, melamine, thermal management material, thermally conductive filler, direct nitriding method, growth mechanism

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