热处理反应合成Cr-Al纳米棒

发布时间：2018-06-29 15:32

本文选题：Cr-Al纳米棒 + 微波合成技术　；参考：《中国陶瓷》2017年03期

【摘要】：采用微波热处理技术得到了Cr-Al纳米棒。采用XRD、扫描电镜与能谱仪研究产物的物相组成与显微形貌。研究结果表明,通过微波合成技术,采用2Cr/Al/石墨扮体原料反应后的产物的主相为Cr_2Al、Cr_7C_3和Cr_2AlC。产物中存在许多20~30μm长的毛茸茸状组织,该组织中是由大量CrAl纳米棒构成的。Cr-Al纳米棒的长度约200~500 nm,宽度约100nm。当用碳纤维取代石墨扮体时,除了产生大量的Cr-Al纳米棒,还会产生大量的Al_2O_3晶须。原料中的石墨或碳纤维起到了诱发电弧放电的作用,从而促进CrAl纳米棒的形成。
[Abstract]:Cr-Al nanorods were obtained by microwave heat treatment. The phase composition and morphology of the products were studied by XRD, SEM and EDS. The results show that by microwave synthesis, the main phases of the products after the reaction of 2Cr / Al / graphite as raw materials are Cr2AlSZ / Cr7Cs3 and Cr2AlC3. The results show that the main phases of the products are Cr2AlS-1, Cr2AlC3 and Cr2AlC. There are a lot of furry tissues of 20 ~ 30 渭 m long in the product. The length and width of .Cr-Al nanorods are about 200 ~ 500 nm and 100 nm respectively, which are made up of a large number of Cr-Al nanorods. When carbon fiber is used to replace graphite, a large number of Al _ 2O _ 3 whiskers will be produced in addition to a large number of Cr-Al nanorods. Graphite or carbon fiber in the raw material can induce arc discharge and promote the formation of CrAl nanorods.
【作者单位】：中原工学院材料与化工学院;金刚石技术国家地方联合工程实验室;
【基金】：郑州市国际科技合作与交流项目(153PGJHZ209) 河南省高等学校重点科研项目(17A430034) 河南省高校创新团队项目(15IRTSTHN004) 河南省省院科技合作项目(142106000193) 河南省教育厅自然科学研究计划项目资助(14A430007) 河南省科技开放合作项目(142106000051) 郑州市人才引育项目(141PRCYY514)
【分类号】：TB383.1

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