Scholarlink

<p>Corn starch was used as a templating agent, and an oxide mixture containing alumina, magnesia, zirconia and yttria was added in the sol-gel state. After slip casting, curing at 85 °C, drying and sintering, high-performance porous alumina ceramics were obtained. The properties of the porous alumina ceramics were analyzed by means of SEM, XRD, flexural strength and porosity. The research findings showed that, when the starch content was 1 wt%, the prepared ceramic mainly consisted of four phases: <i>α</i>-Al<sub>2</sub>O<sub>3</sub>, MgAl<sub>2</sub>O<sub>4</sub>, ZrO, and YSZ. The flexural strength reached 157.27 MPa, the flexural strength of the green body was about 3 MPa, and the porosity was around 30%.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Preparation of Porous Alumina Ceramics by Sacrificial Template Method

  • 期刊论文

  • 发表日期：

    2025年10月29日

查看全文
  • Tianli Zhu,
  • Kexiu Wang,
  • Youfa Wang,
  • Bowen Zheng

摘要

Corn starch was used as a templating agent, and an oxide mixture containing alumina, magnesia, zirconia and yttria was added in the sol-gel state. After slip casting, curing at 85 °C, drying and sintering, high-performance porous alumina ceramics were obtained. The properties of the porous alumina ceramics were analyzed by means of SEM, XRD, flexural strength and porosity. The research findings showed that, when the starch content was 1 wt%, the prepared ceramic mainly consisted of four phases: α-Al2O3, MgAl2O4, ZrO, and YSZ. The flexural strength reached 157.27 MPa, the flexural strength of the green body was about 3 MPa, and the porosity was around 30%.