含KAlSi_(2)O_(6)核壳结构的煤矸石材料制备及其抗侵蚀性研究综合实验教学设计与实践

Design and Practice on Comprehensive Experiment of Preparation and Corrosion Resistance of KAlSi_(2)O_(6)-Bearing Coal Gangue Corel- Shell Structural Material

为提高材料学专业本科生结构功能一体化的材料设计意识和固体废弃物资源再生利用的能力,设计了一项利用固体废弃物再生制备高值耐火材料并探讨其抗侵蚀性的综合教学实验——含KAlSi_(2)O_(6)核壳结构的煤矸石材料颗粒的制备、表征与抗侵蚀性评价。将煤矸石通过固相反应制备含KAlSi_(2)O_(6)核壳结构的煤矸石材料颗粒,采用压柱法研究该核壳结构材料抗锂电池正极材料的侵蚀性能。实验过程涵盖原料处理、高温制备、化学组成与显微结构分析以及使用性能评价。该实验设计可培养材料学专业学生以解决实际问题为导向的科研思想,形成绿色发展理念并与材料学研究融合,提高学生利用固体废弃物资源进行再生利用、高值利用的能力。

To improve the ability of undergraduates majoring in materials science in the design of “Function and Structure Integrated Material” and “Recovery and Reuse of Industrial Solid Wastes”, a comprehensive experiment consisting of preparation, characterization and corrosion resistance of KAlSi_(2)O_(6)-bearing coal gangue with a “core-shell” structure material was designed and suggested in this paper. The KAlSi_(2)O_(6)-bearing coal gangue with a “core-shell” structure material was prepared via solid state reaction at elevated temperatures. The corrosion resistance of KAlSi_(2)O_(6)-bearing coal gangue with a “core-shell” structure material to lithium battery cathode materials was evaluated in laboratory scale via cylinder samples heated at high temperatures. The experiment proposed in this paper consisted of raw material treatment, solid state reaction, chemical composition and microstructure analyses and performance evaluation. The experiment designed in this work aims at training the undergraduates majoring in materials science with problem-guided thinking approach in scientific, combing the ideas in material research and green development, and improving the ability of undergraduates majoring in materials science in recovery and reuse of solid waste with high added values.