Research progress on zirconia-containing refractories

doi:10.3969/j.issn.1001-1935.2023.05.016

Abstract

Abstract: The research progress of high-zirconia refractories,zirconia-containing magnesia refractories,zirconia-containing calcia refractories,zirconia-containing corundum refractories and non-oxides-ZrO₂ composite refractories was reviewed.It is found that:(1)the reasonable selection of stabilizers for ZrO₂ raw materials can effectively improve the thermal shock resistance of high-zirconia refractories and prolong the service life;(2)pre-synthetic raw materials (such as magnesia zirconia sand,CaZrO₃,zirconia-mullite,granulated zirconia micropowder and Zr(OH)₄ gel) and lightweight zirconia-containing raw materials (such as zirconia hollow beads) perform good application effects in magnesia refractories,calcia refractories and corundum refractories;(3)zircon sand is suitable for preparing non-oxides-ZrO₂ composites and some monolithic refractories.Based on this,the research direction of zirconia-containing refractories in the future was put forward.

Key words: zirconia, zirconia-containing magnesia refractories, zirconia-containing calcia refractories, zirconia-containing corundum refractories, SiAlON-ZrO₂ composites

摘要： 综述了高锆质材料、含锆镁质材料、含锆钙质材料、含锆刚玉质材料及非氧化物-ZrO₂复合耐火材料的研究概况,发现:1)合理选择ZrO₂原料的稳定剂类型,可以有效改善高锆质耐火材料的抗热震性能并提高使用寿命;2)预合成原料(镁锆砂、CaZrO₃、锆莫来石、造粒氧化锆微粉和Zr(OH)₄凝胶等)和轻质含ZrO₂原料(ZrO₂空心球微珠等)可以在镁质、钙质及刚玉质耐火材料中取得较好的应用效果;3)锆英砂适用于制备非氧化物-ZrO₂复合材料及部分不定形耐火材料。基于此,提出了含锆耐火材料未来需要重点关注的研究方向。

关键词: ZrO₂, 含锆镁质材料, 含锆钙质材料, 含锆刚玉质材料, SiAlON-ZrO₂复合材料

CLC Number:

TQ175

Zhang Yanli, Peng Xigao, Zhang Xiaohui, Cheng Qing-xian, Wang Xiaoli. Research progress on zirconia-containing refractories[J]. Refractories, 2023, 57(5): 446-451.

张艳利, 彭西高, 张小会, 程庆先, 王晓利. 含锆耐火材料的研究进展[J]. 耐火材料, 2023, 57(5): 446-451.

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