Application of electron microscopy in refractory materials
Due to the chemical composition of refractories, mineral composition and microstructure determines the nature of refractories; refractories chemical composition of the newer methods of analysis are, colorimetric method, organic reagents (complex) titration, flame photometric method, spectral analysis, X-ray fluorescence analysis, etc.; and polarizing microscope and scanning electron microscope is the refractory mineral composition and microstructure of the analysis of the * effective means, so high-quality polarizing microscope and scanning electron microscope is currently an essential equipment for the production and R & D in the production and evaluation and guidance of the production process. Therefore, high-quality polarizing microscope and scanning electron microscope are the essential equipment for testing, evaluating and guiding the production process in the production and research and development of refractories enterprises.
Polarising microscope and scanning electron microscope in the refractory materials in the specific application for:
First, make polarized light microscope and scanning electron microscope on refractory materials mineral composition and microstructure analysis. The properties of refractory materials mainly include chemical-mineral composition, organisational structure, mechanical properties, thermal properties and high-temperature use properties. Refractory material is a non-homogeneous body composed of two parts: solid phase (including crystalline phase and glassy phase) and pores. The relative quantity and distribution between them and the combination of morphology constitute the microstructure of refractory materials. The physical and chemical properties of refractories are determined by the crystalline phase of refractories. The crystalline structure is determined by the production process of the refractory and the minerals used as ingredients. Through the microscope and scanning electron microscope is mainly to analyse the refractory materials of the crystalline structure and gas phase structure, so as to guide the refractory materials of the production process and the proportion of minerals added to the ingredients, etc., and ultimately to achieve the refractory materials of the physical and chemical properties of the requirements of the refractory materials, in line with the refractory materials of the application of performance.
Second, the use of polarized light microscope and scanning electron microscope on the refractoriness of refractory products, thermal shock stability, porosity distribution, resistance to slagging and corrosion performance of the assessment and analysis, so as to improve the quality of refractory product quality, to meet the current market for a new generation of advanced refractories quality requirements.
