Gas atmosphere controllable ablation testing device and method for ceramic matrix composite material

Abstract

The invention discloses a gas atmosphere controllable ablation testing device and method for a ceramic matrix composite material. The device comprises a high-speed flame spray gun, a test specimen clamping module, an ablation platform bracket, a gas parameter and temperature measurement module, a gas adjustment control module, a data recording and feedback module and a comprehensive gas supply module. According to the device, high-temperature gas flow generated by premixed combustion of propane, oxygen, air and water vapor is used as a simulated gas source; the specific fuel gas premixing proportion and flow are adjusted through the fuel gas adjusting control module; high-temperature gas flow at a specific temperature and in a gas component range is obtained; the ablation performance of the surface of the tested ceramic matrix composite is tested through the high-speed gas spray gun, the specific atmosphere environment parameters in the material ablation process are controlled and obtained through the adjusting system in combination with data of all measuring points, and quantitative measurement and calculation of the ablation performance of the ceramic matrix composite under the specified atmosphere can be achieved.

Description

technical field [0001] The invention relates to the technical field of material performance testing, in particular to a ceramic matrix composite material ablation testing device and method with controllable gas atmosphere. Background technique [0002] Due to its excellent mechanical properties and high temperature resistance, ceramic matrix composites are being increasingly used in the aerospace field. The damage of ceramic matrix composites due to ablation and oxidation in high temperature gas environment leads to a rapid decline in the mechanical properties of components. Therefore, it is particularly important to test the ablation performance of ceramic matrix composites under their typical application environment conditions, and the performance of ceramic matrix composites obtained by different weaving methods and manufacturing processes varies greatly. How to quickly and efficiently It is very important to measure the ablation performance of ceramic matrix composites u...

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the current ablation performance testing schemes of related ceramic matrix composite materials, the present invention proposes a new type of ablation measurement device and method for ceramic matrix composite materials under a controllable atmosphere to solve the problem of gas atmosphere monitoring and Neglecting the adjustment, the present invention can simulate the atmosphere environment and temperature conditions of the tested material under the corresponding working conditions and conduct the ablation performance test under specific working conditions, and monitor and record the changes of the atmosphere environment and temperature during the ablation process in real time data

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