A Mathematical Model of Dynamic Coefficient of Thermal Expansion for ZrO₂ Multiple Phase Ceramics

Abstract:

In order to control cutting depth of preheating ZrO₂ sintered ceramics accurately, linear expansion elongation of preheating ZrO₂ multiple phase is measured; on the base of the measured data a mathematical model of thermal expansion coefficient given at different preheating temperature is put forward. Its fitting-error from-9μm to +2μm is very small compared to the data of linear expansion elongation measured. Some milling experiments that cutting force is following preheating temperature have been done by the amending cutting-depth from the model. The experimental results show that the cutting performance of ZrO₂ sintered ceramics preheated not only turns better but also extends cutter life.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 1946-1949
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.1946
• Online since: July 2013
• Authors: Quan Ping Sun, Hai Bing Wu, Qian Liang Chen
• Keywords: Modeling, Preheating, Sintered Ceramics, Thermal Expansion Coefficient

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