垃圾发电设施燃烧区氧化物结合碳化硅耐火砖的磨损机理

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

Journal of The European Ceramic Society Pub Date : 2024-10-22 DOI:10.1016/j.jeurceramsoc.2024.117016

Audrey Tixier , Cyrille Varona , Jean-Michel Brossard , Patrick Ganster , François Valdivieso , Jacques Poirier , Emmanuel de Bilbao

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引用次数: 0

摘要

垃圾发电厂使用的耐火砖暴露在高温（烟道气温度≈ 1200 °C）以及气体和飞灰的腐蚀环境中。为了了解耐火材料的损坏机理，我们对垃圾发电厂燃烧区的耐火砖进行了尸检。来自该区域的腐蚀耐火砖显示出严重的物质损失，热表面出现大量空洞。调查凸显了耐火材料基体的弱点。在与熔渣沉积物和腐蚀性气体接触时，耐火材料的结合相被溶解，SiC 晶粒被氧化，从而导致耐火砖热面剥落。

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Wear mechanism of oxide-bonded SiC refractory tiles in the combustion zone of waste-to-energy facilities

Refractory tiles used in waste-to-energy facilities are exposed to high temperatures (T_flue-gas ≈ 1200 °C) and corrosive environment with gases and fly ashes. Post-mortem examination of refractory tiles from the combustion zone of waste-to-energy plants was conducted to understand the damage mechanism of the refractory material. Corroded refractory tiles from this area showed an important loss of matter and large cavities on the hot surface. Investigations highlighted the weakness of the refractory matrix of the material. In contact with slag deposit and corrosive gases, the bonding phase of the refractory material is dissolved and SiC grains are oxidized which causes the spalling of the hot face of refractory tiles.

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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.