利用控制烧结曲线及其拓展预测ZrO2陶瓷烧结过程

doi:10.15541/jim20150292

无机材料学报 ›› 2016, Vol. 31 ›› Issue (1): 53-57.DOI: 10.15541/jim20150292 CSTR: 32189.14.10.15541/jim20150292

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. 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. 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/Abstract

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

中图分类号:

TQ174

陈诚, 李晨辉, 柯文明,史玉升, 贺智勇, 张启富. 利用控制烧结曲线及其拓展预测ZrO₂陶瓷烧结过程[J]. 无机材料学报, 2016, 31(1): 53-57.

CHEN Cheng, LI Chen-Hui, KE Wen-Ming, SHI Yu-Sheng, HE Zhi-Yong, ZHANG Qi-Fu. Prediction of Sintering Process for ZrO₂ Ceramics Based on Master Sintering Curve Theory and Its Expansion[J]. Journal of Inorganic Materials, 2016, 31(1): 53-57.

图/表 7

图1 ZrO2烧结的原位测量效果图

Fig. 1 In-situ measurement pictures of ZrO2 under sintering (a) 850℃; (b) 1050℃; (c) 1300℃; (d) 1500℃

图2 ZrO2烧结过程中半径随温度的变化图

Fig. 2 Radius versus temperature of sintering process for ZrO2

图3 ZrO2相对密度-烧结温度关系图

Fig. 3 Relative density versus temperature for ZrO2

图4 ZrO2平均残差平方与烧结活化能曲线图

Fig. 4 Plot of average residual square versus activation energy for ZrO2

图5 ZrO2的控制烧结曲线

Fig. 5 Master sintering curve for ZrO2

图6 ZrO2控制烧结曲线预测烧结时间的曲面图

Fig. 6 Surface plots of MSC predictions for ZrO2

图7 实验数据与模拟数据的拟合图

Fig. 7 Fitting plot of experimental and theoretical calculation data

参考文献 13

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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

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

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