无机材料学报

• 研究论文 • 上一篇    下一篇

快速烧结制备纳米Y-TZP材料

李蔚1; 高濂1; 洪金生1; 宫本大树2   

  1. 1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050; 2. 日本大阪府立产业技术综合研究所, 大阪590-02日本
  • 收稿日期:1999-01-13 修回日期:1999-03-08 出版日期:2000-04-20 网络出版日期:2000-04-20

Fabrication of Nano Y-TZP by Rapid Hot-Pressing and SPS

LI Wei1; GAO Lian1; HONG Jin-Sheng1; MIYAMOTO Hiroki 2   

  1. 1. State Key Lab of High Performance Ceramics & Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Technology Research Institute of Osaka Prefecture Osaka 590-02 Japan
  • Received:1999-01-13 Revised:1999-03-08 Published:2000-04-20 Online:2000-04-20

摘要: 研究了快速热压烧结和放电等离子快速烧结(SPS)制备纳米Y-TZP材料.利用快速热压烧结和 SPS快速烧结,可在烧结温度为 1200℃、保温9~10min条件下,制得相对密度超过99%的 Y-TZP材料.研究发现:虽然快速热压烧结和 SPS烧结都可使Y-TZP在相同温度下的密度高于普通热压烧结,但两种快速烧结所得Y-TZP的晶粒都大于无压烧结所得;另外,快速热压烧结所得样品的结构不够均匀,而SPS烧结的样品的均匀性较好.文章对产生这些现象的原因进行了理论探讨.

关键词: 纳米Y-TZP, 快速热压烧结, 放电等离子烧结

Abstract: Ultrafine 3Y-TZP materials were fabricated by the rapid hot-pressing and SPS(Spark Plasma Sintering). It was found that although
the relative densities of the Y-TZP sintered by the two kinds of rapid rate sintering methods were higher than that of sintered by ordinary
hot-pressing at the similar sintering temperature, the grain sizes were larger than that obtained by pressureless sintering; On the other hand,
the structure of the samples sintered by SPS was much homogeneous than that sintered by rapid hot-pressing. The reasons of those phenomena were
also discussed. By choosing appropriate condition, ultrafine 3Y-TZP materials with a relative density of 99% could be gotten by both the two
kinds of rapid rate sintering.

Key words: ultrafine 3Y-TZP, SPS, rapid hot-pressing

中图分类号: