Influence of Sintering Process on the Mechanical Properties of Dental Zirconia Ceramics

Abstract:

Densification and mechanical properties of dental zirconia ceramics were evaluated by different sintering methods. Y-TZP zirconia block was used in this study. Sintering were performed in electric heating furnace and microwave sintering furnace, and then experimented and analyzed on a change in densification according to the sintering time, a change in densification according to thickness, flexural strength and micro-structure of zirconia specimens. Microwave sintering was very effective in considerable mechanical properties such as flexural strength and bulk density was drastically increased than conventional electric heating method. It is also shown that microwave sintering was faster and more economical than common method to be present in qualities which equal or exceed. It will be important to seek the accurate sintering condition of dental zirconia by microwave sintering method and the continuous research is necessary for the study of relationship between sintering methods and mechanical properties.

• Periodical: Materials Science Forum (Volumes 738-739)
• Pages: 542-545
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.738-739.542
• Online since: January 2013
• Authors: W.U. Park, J.M. Zhao, Kyu Hong Hwang, T.S. Kim, C.H. Yu, J.K. Lee
• Keywords: Bulk Density, Dental Zirconia, Flexural Strength, Martensitic Transformation (MT), Microwave Sintering, Y-TZP

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