Study on reaction interface of carbon‐free oxide‐based refractories with lanthanum oxide and lanthanum aluminate

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Ceramic Technology Pub Date : 2024-07-26 DOI:10.1111/ijac.14873

Feixiang Ma, Guoqi Liu, Qiang Gu, Yi Zhang, Hongxia Li

引用次数: 0

Abstract

In this study, the reaction interfaces of four kinds of oxide refractories (corundum, spinel, mullite, and zirconia) with lanthanum oxide (La2O3) and lanthanum aluminate (LaAlO3) under different atmospheres at high temperatures (1550°C) were analyzed. The results show that the four oxides have a strong reaction with La2O3, and the corresponding rare earth aluminate, rare earth silicate, and rare earth zirconate are formed respectively. The reaction with LaAlO3 is weak, and almost no reaction occurs. Mullite has poor structural stability in a high‐temperature reduction atmosphere, easy decomposition, and strong reaction with La2O3. This study provides an important reference for the study of the reaction mechanism between rare earth steel and lining materials and the research and development of special lining materials for rare earth steel.

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无碳氧化物基耐火材料与氧化镧和铝酸镧的反应界面研究

本研究分析了四种氧化物耐火材料（刚玉、尖晶石、莫来石和氧化锆）在不同气氛下与氧化镧（La2O3）和铝酸镧（LaAlO3）在高温（1550°C）下的反应界面。结果表明，四种氧化物与 La2O3 发生强烈反应，分别生成相应的稀土铝酸盐、稀土硅酸盐和稀土锆酸盐。与 LaAlO3 的反应较弱，几乎不发生反应。莫来石在高温还原气氛中结构稳定性差，易分解，与 La2O3 反应强烈。该研究为研究稀土钢与衬里材料的反应机理、研发稀土钢专用衬里材料提供了重要参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Applied Ceramic Technology 工程技术-材料科学：硅酸盐

CiteScore

3.90

自引率

9.50%

发文量

280

审稿时长

4.5 months

期刊介绍： The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas: Nanotechnology applications; Ceramic Armor; Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors); Ceramic Matrix Composites; Functional Materials; Thermal and Environmental Barrier Coatings; Bioceramic Applications; Green Manufacturing; Ceramic Processing; Glass Technology; Fiber optics; Ceramics in Environmental Applications; Ceramics in Electronic, Photonic and Magnetic Applications;