| 硅化钴的简单固相合成与磁学性能 | |
| Facile Solid-State Synthesis and Magnetic Properties of Cobalt Monosilicide | |
| 摘要: 使用Co3O4、金属镁和硅为原料在不锈钢高压釜750℃反应得到立方相的硅化钴（CoSi）。所得样品的结构和形貌利用X射线粉末衍射（XRD）、透射电子显微镜（TEM）和场发射扫描电子显微镜（FESEM）等手段表征。XRD结果表明，所得样品为立方相CoSi，晶格常数为a=0.445 5 nm。此外，研究了CoSi样品的磁性和抗氧化性能，结果表明通过上述方法制备得到的硅化钴材料具有铁磁性，在600℃以下具有较好的稳定性和抗氧化性能。 | |
| 关键词: 固相反应 陶瓷 X射线衍射 电子显微镜 纳米颗粒 | |
| 基金项目: 中国国家社会发展基金（No.BE2016657）和江苏省高等学校自然科学基金（No.16KJA43007）资助 | |
| Abstract: Cubic phase cobalt monosilicide (CoSi) has been synthesized by using Co3O4, metallic magnesium and silicon as starting materials in a stainless-steel autoclave at 750℃. The structures and morphologies of the obtained sample were derived from X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and field-emission scanning electron microscopy (FESEM). XRD patterns indicated that the obtained sample was cubic phase CoSi with lattice constant of a=0.445 5 nm. Furthermore, the oxidation resistance and magnetic property of the obtained CoSi sample were also investigated. The CoSi sample exhibited ferromagnetic behavior, and had good thermal stability and oxidation resistance below 600℃ in air. | |
| Keywords: solid-state reactions ceramics X-ray diffraction electron microscopy nanoparticles | |
| 投稿时间：2018-10-25 修订日期：2019-03-28 | |
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| 朱炳龙,陆铃鲸,戴伟城,张赐阳,方礼炜,王迪,王佳健.硅化钴的简单固相合成与磁学性能[J].无机化学学报,2019,35(5):876-880. | |
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