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粉末冶金材料科学与工程 >

2021 , Vol. 26 >Issue 6: 483 - 491

DOI: https://doi.org/10.19976/j.cnki.43-1448/TF.2021064

综合评述

多孔氧化铝陶瓷材料的制备工艺研究进展

  • 和祥 ,
  • 黄千里 ,
  • 陈煜辉 ,
  • 刘伯威 ,
  • 刘咏
展开
  • 1.中南大学 粉末冶金国家重点实验室,长沙 410083;
    2.深圳长隆科技有限公司,深圳 518100

收稿日期: 2021-08-02

  修回日期: 2021-09-30

  网络出版日期: 2021-12-22

基金资助

中国博士后科学基金特别资助项目(2019T120711)

收起

Research progress on the fabrication technology of porous alumina ceramics

  • HE Xiang ,
  • HUANG Qianli ,
  • CHEN Yuhui ,
  • LIU Bowei ,
  • LIU Yong
Expand
  • 1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;
    2. Shenzhen Changlong Technology Co., Ltd., Shenzhen 518100, China

Received date: 2021-08-02

  Revised date: 2021-09-30

  Online published: 2021-12-22

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摘要

多孔氧化铝陶瓷具有力学性能好、耐腐蚀、比表面积大以及化学性质稳定等优点,在耐火材料、电绝缘体、耐磨机械部件、过滤材料、催化支撑体等领域得到广泛应用。常见多孔氧化铝陶瓷的造孔方法主要有部分烧结法、复刻模板法、牺牲模板法与直接发泡法,合理的造孔方法有利于获得特定孔隙结构与孔隙率。氧化铝陶瓷的常规烧结工艺通常温度高、时间长、易形成粗化晶粒与残留气孔,先进烧结技术如振荡压力烧结、放电等离子烧结、微波烧结等可有效克服上述缺点,综合提升材料的各项性能。本文从造孔方法与烧结技术两个方面综述多孔氧化铝陶瓷的研究进展,期望为新型多孔氧化铝陶瓷的研究、开发与应用提供参考。

关键词： 多孔陶瓷; 氧化铝; 粉体原料; 造孔方法; 烧结技术

本文引用格式

和祥 , 黄千里 , 陈煜辉 , 刘伯威 , 刘咏 . 多孔氧化铝陶瓷材料的制备工艺研究进展[J]. 粉末冶金材料科学与工程, 2021 , 26(6) : 483 -491 . DOI: 10.19976/j.cnki.43-1448/TF.2021064

Abstract

Porous alumina ceramics are widely used as refractory materials, electrical insulators, wear-resistant mechanical parts, filtering materials and catalytic support due to their excellent mechanical properties, corrosion resistance, large specific surface area and stable chemical properties. The pores in porous alumina ceramics are commonly created by partial sintering, replica, sacrificial template or direct foaming method. Specific porous structure and porosity can be obtained by employing appropriate pore-creating method. Conventional sintering of alumina ceramics is usually characterized by high temperature, long duration, easy formation of coarse grains and residual pores. The application of advanced sintering technologies such as oscillatory pressure sintering, spark plasma sintering and microwave sintering can effectively overcome these shortcomings and comprehensively improve material properties. In order to provide references for the investigation, development and application of novel porous alumina ceramics, we reviewed the research progress on two aspects including pore-creating method and sintering technology involved in the fabrication process of porous alumina ceramics.

Key words： porous ceramics; alumina; powder raw material; pore-creating method; sintering technology

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