摘要
多孔氧化铝陶瓷体积密度的测定是材料化学专业实验中的一个重要综合实验内容,通过实验可以让学生掌握多孔陶瓷材料制备以及体积密度的测定方法。在实际实验教学过程中,针对经常遇到的多孔陶瓷气孔分布不均匀与体积密度测试不准确等问题,进行了系统分析并提出了相应的改进方法,结合简单材料结构模型深入分析了体积密度的计算原理。改进后的实验方案有利于学生获得准确的测试结果,并能够加深学生对实验原理和操作的认识与体会。
The volume density measurement of porous alumina ceramic is one of the most important comprehensive experiments for Materials Chemistry major students.The methods of preparing porous ceramic and measuring volume density are acquired in this experiment.On the issues of inhomogeneous pore distribution in ceramic and inaccurate volume density measurement,the reasons were discussed and the corresponding improvement was proposed.Students can clearly understand the calculation process of volume density by introducing a simplified schematic diagram of material microstructure.The improved experiment was helpful for the students to obtain correct results,it also deepened the understanding of the experimental principle and operation experience.
出处
《广州化工》
CAS
2017年第20期137-139,共3页
GuangZhou Chemical Industry
基金
河南省高等学校重点科研项目(16A430022)
南阳师范学院校级科研项目(ZX2016015)
关键词
多孔氧化铝陶瓷
体积密度
实验方案
优化
porous alumina ceramic
volume density
experiment approach
improvement
