自蔓延高温合成V1.8Nb0.2AlC固溶体研究
Research on Self-propagation High-temperature Synthesis of V1.8Nb0.2AlC Solid Solution
吴海江 1杨扬 1刘志勇 1毕君 2陈学文3
作者信息
- 1. 邵阳学院 机械与能源工程学院,湖南 邵阳 422000;邵阳学院 高效动力系统智能制造湖南省重点实验室,湖南 邵阳 422000
- 2. 广东轻工职业技术学院 机电技术学院,广东 广州 510300
- 3. 广东工程职业技术学院 机电工程学院,广东 广州 510520
- 折叠
摘要
文章以钒粉、铌粉、铝粉、石墨粉为原料,按照V∶Nb∶Al∶C=1.8∶0.2∶1∶1(物质的量比)配制原料混合物,采用自蔓延高温合成技术制备了V1.8Nb0.2AlC固溶体.利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、X射线能谱分析仪(EDS)等分析技术对合成产物的组成、结构和微观形貌进行了表征.结果表明,随着Nb元素的引入,V2AlC的(002)和(110)的特征峰分别从 13.62°和 63.92°向下移动到 13.24°和 63.36°,表明V1.8Nb0.2AlC形成了固溶体,V1.8Nb0.2AlC固溶体具有典型MAX相的页岩层状形貌.
Abstract
The V1.8Nb0.2AlC solid solution is prepared by self-propagating high-temperature synthesis technology with vanadium powder,niobium powder,aluminum powder and graphite powder as raw materials to prepare raw material mixture according to V:Nb:Al:C=1.8:0.2:1:1(molar ratio).The composition,structure and microstructure of the synthesized products are characterized by X-ray diffractometer(XRD),scanning electron microscope(SEM)and X-ray energy dispersive spectrometer(EDS).The results show that with the introduction of Nb element,the characteristic peaks of(002)and(110)of V2AlC shift downwards from 13.62° and 63.92° to 13.24° and 63.36° respectively,indicating that V1.8Nb0.2AlC forms a solid solution,and the V1.8Nb0.2AlC solid solution has a typical MAX phase shale layered morphology.
关键词
V1.8Nb0.2AlC/自蔓延高温合成技术/固溶体/MAX相Key words
V1.8Nb0.2AlC/self propagating high-temperature synthesis technology/solid solution/MAX phase引用本文复制引用
基金项目
湖南省自然科学基金(2022JJ50215)
邵阳市科技计划(2022GZ3035)
出版年
2024
NETL
NSTL
万方数据