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各向异性形貌的单晶颗粒由于有特定的形貌和结晶学方向,从而区别于同组分的等轴粉末颗粒,而且由于其具有某些特定的性能,在功能陶瓷领域的应用越来越广泛。熔盐法是制备非等轴状晶粒的重要方法之一,本文概述了熔盐法制备非等轴状低维度单晶颗粒的基本原理及熔盐选择的基本原则,阐述了不同工艺条件(反应温度及时间、熔盐种类及其含量等)对产物尺寸及形貌的影响,并探讨了各向异性形貌单晶颗粒的形成机理。
Due to the specific morphology and crystallographic orientation, the single crystal particles with anisotropic morphology are distinguished from those of the same component, and due to their specific properties, the application in the field of functional ceramics is more and more The more extensive. Molten salt method is one of the important methods to prepare non-equiaxed grains. The basic principle of molten salt method for preparing non-equiaxed low-dimension single crystal grains and the basic principle of molten salt selection are summarized. The effects of different process conditions The reaction temperature and time, the type and content of molten salt, etc. on the size and morphology of the product, and discusses the formation mechanism of anisotropic morphology of single crystal particles.