Electron microscope use in refractory materials
Since the chemical composition, mineral composition and microstructure of refractory materials determine the properties of refractory materials; newer analysis methods for the chemical composition of refractory materials include colorimetry, organic reagent (complex) titration, flame photometry, and spectral analysis. method, X-ray fluorescence analysis, etc.; while polarizing microscope and scanning electron microscope are the most effective means to analyze the mineral composition and microstructure of refractory materials, so high-quality polarizing microscope and scanning electron microscope are currently the most effective means for refractory material enterprises to produce and Indispensable equipment for testing, evaluating and guiding the production process in research and development.
The specific application of polarizing microscope and scanning electron microscope in refractory materials is as follows:
1. Enable polarizing microscope and scanning electron microscope to analyze the mineral composition and microstructure of refractory materials. The properties of refractories mainly include chemical-mineral composition, organizational structure, mechanical properties, thermal properties and high-temperature use properties. Refractory materials are heterogeneous bodies composed of solid phase (including crystalline phase and glass phase) and pores. The relative quantity among them and their distribution and bonding form constitute the microstructure of the refractory material. The physical and chemical properties of refractory materials are determined by the crystal phase of refractory materials. The crystal phase structure is determined by the production process of refractory materials and the ingredients of minerals. Through the microscope and scanning electron microscope, the crystal phase structure and gas phase structure of refractory materials are mainly analyzed, so as to guide the production process of refractory materials and the addition ratio of ingredients and minerals, etc., and finally meet the requirements of physical and chemical properties of refractory materials, which meet the requirements of refractory materials. application performance.
2. Use polarizing microscope and scanning electron microscope to evaluate and analyze the refractoriness, thermal shock stability, porosity distribution, slag corrosion resistance, etc. of refractory products, so as to improve the quality of refractory products and meet the current market demand for a new generation of advanced refractory products Material quality requirements.
