无机材料学报 ›› 2016, Vol. 31 ›› Issue (1): 53-57.DOI: 10.15541/jim20150292

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利用控制烧结曲线及其拓展预测ZrO2陶瓷烧结过程

陈 诚1, 李晨辉1, 柯文明1, 史玉升1, 贺智勇2, 张启富2   

  1. (1. 华中科技大学 材料成型与模具技术国家重点实验室, 武汉430074; 2. 中国钢研科技集团有限公司, 北京100081)
  • 收稿日期:2015-06-25 修回日期:2015-09-02 出版日期:2016-01-20 网络出版日期:2015-12-15
  • 作者简介:陈 诚(1991–), 男, 硕士研究生. E-mail: cctonycarp@163.com
  • 基金资助:
    国家自然科学基金(51372093) National Natural Science Foundation of China (51372093)

Prediction of Sintering Process for ZrO2 Ceramics Based on Master Sintering Curve Theory and Its Expansion

CHEN Cheng1, LI Chen-Hui1, KE Wen-Ming1, SHI Yu-Sheng1, HE Zhi-Yong2, ZHANG Qi-Fu2   

  1. (1. Huazhong University of Science and Technology, State Key Laboratory of Material Processing and Die & Mould Technology, Wuhan 430074, China; 2. China Iron & Steel Research Institute Group, Beijing 100081, China)
  • Received:2015-06-25 Revised:2015-09-02 Published:2016-01-20 Online:2015-12-15
  • About author:CHEN Cheng. E-mail: cctonycarp@163.com

摘要:

将钇稳定氧化锆(3Y-PSZ)冷等静压素坯在原位测量仪中进行恒速无压烧结, 升温速率分别为2、5、8℃/min, 通过原位测量仪保存图像, 并用软件Image-Pro Plus 6.0对图像进行处理, 得到收缩数据, 建立氧化锆的控制烧结曲线(MSC), 成功计算出其烧结活化能Q为685.7 kJ/mol。并对控制烧结曲线进行扩展(EMSCE), 模拟出恒定加热速率下整个烧结过程中温度与相对密度的关系, 而不仅仅是预测最终密度。该研究提供了一种预测材料烧结制度的可能性, 确保了所选烧结时间和烧结温度的高精确度和可重复性。

关键词: 氧化锆, 原位测量仪, 控制烧结曲线, EMSCE

Abstract:

Yttria stabilized zirconia compacts fabricated by cold isostaitc pressing were sintered in an in-situ measurement instrument under different heating rates (2, 5 and 8℃/min) and pressureless condition. The images were obtained by the in-situ measurement instrument and subsequently analyzed by using Image-Pro Plus 6.0. Based on the shrinkage data and corresponding master sintering curve, the sintering activation energy was eventurely calculated to be 685.7 kJ/mol. Besides predicting the final density of the compacts, the master sintering curve (EMSC) was extended and modeled presenting relationship between temperature and relative density in the sintering process under different heating rates. This study provides possibility for predicting the sintering schedule, which ensures the accuracy and repeatability of sintering time and temperature.

Key words: ZrO2, in-situ measurements, MSC, EMSCE

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