ABSTRACT

LZ7C3 fibres with nanostructures have been synthesised by the sol–gel method combined with electrostatic spinning technology and a high-temperature-resistant LZ7C3 ceramic material prepared by high-temperature calcination. The formation process of the ceramic fibre was studied and its properties characterized by differential thermal analysis, X-ray diffraction and infrared spectroscopy. The microstructure of the fibre was analysed by scanning electron microscopy and transmission electron microscopy, and the properties of the fibre were determined. The results showed that many conditions, such as calcination temperature and silica-sol content, have a pivotal influence on the crystal phase composition and morphology. By comparing the effects of these conditions, ceramic materials with exceptional properties have been prepared.

摘要

通过溶胶-凝胶法结合静电纺丝技术和高温煅烧制备的耐高温LZ7C3陶瓷材料合成了具有纳米结构的LZ7C3纤维。研究了陶瓷纤维的形成过程，并通过差热分析、X射线衍射和红外光谱对其性能进行了表征。采用扫描电镜和透射电镜对纤维的微观结构进行分析，测定纤维的性能。结果表明，许多条件，如煅烧温度和硅溶胶含量，对晶相组成和形态有关键影响。通过比较这些条件的影响，制备了具有优异性能的陶瓷材料。