A device and method for in-situ testing the reaction behavior of refractory materials under stress

Abstract

The invention discloses a device and method for in-situ testing the reaction behavior of refractory materials under stress, wherein the device includes: a stress loading system for clamping a sample, and when testing the reaction behavior of the sample The sample provides compressive stress loading; the air-cooled thermal shock system is used to provide thermal stress to the sample when testing the response behavior of the sample; the heating system is used to test the response behavior of the sample When the sample is heated; the atmosphere control system is used to provide a vacuum or a test environment of different atmospheres for the sample when testing the reaction behavior of the sample; the detection system is used to test the sample. Real-time in situ detection of reactive behavior. The invention can realize the coordinated control of the temperature field, the atmosphere field and the stress field of the sample during the reaction process, and then perform in-situ testing on the high-temperature reaction behavior of the refractory material under conditions closer to the actual service environment.

Description

technical field [0001] The invention belongs to the technical field of performance research of inorganic non-metallic materials, and in particular relates to a device and method for in-situ testing the reaction behavior of refractory materials under stress. Background technique [0002] Refractory materials are widely used in various fields of national economy such as steel, non-ferrous metals, glass, cement, ceramics, petrochemical, electric power and military industry. It plays an irreplaceable important role in the development of production. However, in practical applications, refractory materials are often subject to frequent temperature changes, scour and extrusion of different reaction media, so they are inevitably affected by thermal stress, compressive stress and thermal-compressive coupling complex stress, which will cause the microstructure of the material to change. Changes, micro-cracks and holes, even cracking and peeling, the resulting material failure often b...

AI Technical Summary

Problems solved by technology

However, most of the existing test devices do not consider the influence of stress on refractory materials, and the few test devices cannot take into account the online acquisition of the sample quality and microstructural evolution during the reaction process. Therefore, it is impossible to accurately characterize refractory materials. Damage behavior and mechanism under high temperature stress field

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