基于 ZrB2 的陶瓷的热侵蚀试验

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2024-11-04 DOI:10.1016/j.jeurceramsoc.2024.117050

Oleg Grigoriev , Dariia Chernomorets , Vladimir Vinokurov , Irina Neshpor , Gennadii Frolov , Serhii Teslia , Dmytro Vedel , Laura Silvestroni

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引用次数: 0

摘要

将一组不同成分的块状全致密和 10 Vol%多孔 ZrB2 基陶瓷加工成尖锐的翼状，并在空气和含氧量大于 5 wt%的煤油混合形成的空气-燃料混合物流中进行了热侵蚀测试。燃烧室中的压力为 0.8 兆帕，流动温度为 1500 摄氏度。试验后的微观结构分析表明，材料成功的标准包括高密度和高导热性，以及形成稳定的化合物。这些结果得到了数值模拟的支持。在所有测试材料中，只有 ZrB2 - 15 vol% MoSi2 (ZM) 符合所有要求，并成功经受住了长达 1200 秒的热侵蚀测试。

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Thermal erosion test of ZrB2-based ceramics

The thermal erosion of a set of bulk fully dense and 10 vol% porous ZrB₂-based ceramics of different composition were machined as sharp wing and tested in an air-fuel mixture flow formed by mixing air and kerosene with an oxygen content ∼5 wt%. The resulting pressure in the combustion chamber was 0.8 MPa and the flow temperature was 1500°C. Microstructural analyses upon the tests evidenced that criteria for material success include high density and high thermal conductivity, along with formation of stable compounds. These results were supported by numerical simulation. Among all tested materials, only ZrB₂ - 15 vol% MoSi₂ (ZM) met all the requirements and successfully survived the thermal erosion test up to 1200 sec.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.