Introduction to the application of electron microscope in refractory materials
The chemical composition, mineral composition, and microstructure of refractory materials determine their properties; The newer analytical methods for the chemical composition of refractory materials include colorimetric method, organic reagent (complex) titration method, flame photometry, spectroscopic analysis, X-ray fluorescence analysis, etc; Polarized microscopes and scanning electron microscopes are the most effective means of analyzing the mineral composition and microstructure of refractory materials. Therefore, high-quality polarized microscopes and scanning electron microscopes are essential equipment for detecting, evaluating, and guiding production processes in refractory material enterprises' production and research and development.
The specific applications of polarizing microscope and scanning electron microscope in refractory materials are:
1, Enable polarizing microscope and scanning electron microscope to analyze the mineral composition and microstructure of refractory materials. The properties of refractory materials mainly include chemical mineral composition, microstructure, mechanical properties, thermal properties, and high-temperature service properties. Refractory materials are heterogeneous bodies composed of two parts: solid phase (including crystalline phase and glass phase) and pores. The relative quantity, distribution, and binding morphology between them constitute the microstructure of refractory materials. The physical and chemical properties of refractory materials are determined by their crystal phase. The crystal structure is determined by the production process and mineral composition of refractory materials. The main purpose of using microscopes and scanning electron microscopes is to analyze the crystal and gas phase structures of refractory materials, in order to guide the production process of refractory materials and the proportion of mineral additives, ultimately achieving the physical and chemical properties requirements of refractory materials and meeting their application performance.
2, Using polarizing microscope and scanning electron microscope to evaluate and analyze the refractoriness, thermal shock stability, porosity distribution, slag corrosion resistance and other properties of refractory products, in order to improve the quality of refractory products and meet the current market requirements for the new generation of advanced refractory materials.
