耐火材料 ›› 2023, Vol. 57 ›› Issue (6): 473-478.DOI: 10.3969/j.issn.1001-1935.2023.06.003

• 研究开发 • 上一篇    下一篇

基于蓝晶石尾矿制备莫来石-高硅氧玻璃复相材料研究

王治峰1), 李亚伟1), 马淑龙2), 任博3), 孟令汉2), 徐义彪1), 桑绍柏1)   

  1. 1)武汉科技大学 省部共建耐火材料与冶金国家重点实验室 湖北武汉 430081
    2)北京金隅通达耐火技术有限公司 北京 100085
    3)北京科技大学 材料科学与工程学院 北京 100083
  • 收稿日期:2023-03-17 发布日期:2023-12-25
  • 通讯作者: 李亚伟,男,1966年生,教授。 E-mail:liyawei@wust.edu.cn
  • 作者简介:王治峰:男,1982年生,博士研究生。E-mail:150070831@qq.com
  • 基金资助:
    国家重点研发计划项目(2019YFC1904900)。

Mullite-high silica glass composite materials prepared from kyanite tailings

Wang Zhifeng, Li Yawei, Ma Shulong, Ren Bo, Meng Linghan, Xu Yibiao, Sang Shaobai   

  1. First author's address: The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China
  • Received:2023-03-17 Published:2023-12-25

摘要: 为高效资源化利用蓝晶石尾矿,以蓝晶石尾矿为原料,加黄糊精和水,压制成50 mm×50 mm的生坯,经1 400、1 500、1 600、1 650 ℃保温3 h热处理制备莫来石-高硅氧玻璃复相材料试样,借助XRD和SEM研究其抗碱侵蚀行为。结果发现:经1 400、1 500 ℃热处理后试样中高硅氧玻璃相含量低,气孔以开口气孔为主,抗碱侵蚀性较差;而1 600、1 650 ℃热处理后试样中形成较多的高硅氧玻璃相,气孔主要以闭口气孔为主,侵蚀仅发生在表面区域,抗碱侵蚀性与莫来石化后红柱石的相当,抗碱侵蚀性优异。

关键词: 蓝晶石尾矿, 莫来石-高硅氧玻璃复相材料, 气孔, 抗碱侵蚀性

Abstract: To efficiently utilize kyanite tailings,mullite-high silica glass composite materials were prepared using kyanite tailings as the raw material,adding corn starch and water,pressing into green bodies with dimensions of 50 mm×50 mm,and firing at 1 400,1 500,1 600 and 1 650 ℃ for 3 h.Afterwards,the alkali resistance of these fired specimens was examined by XRD and SEM.The results show that the composites obtained at 1 400 and 1 500 ℃ exhibit low glass phase contents,mainly open pores,and poor alkali attack resistance;in contrast to that,the composite materials treated at 1 600 and 1 650 ℃ display higher high-silica glass phase contents and predominantly closed pores;their alkali attack happens mainly on the surface,which is comparable to mullitized andalusite,showing excellent alkali resistance.

Key words: kyanite tailings, mullite-high silica glass composite, pores, alkali resistance

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