Phase Formation, Microstructure and Mechanical Properties of ZrO2 Modified-Dental Porcelain Ceramics
Attavit Pisitanusorn, Rattikorn Yimnirun and Supon Ananta* Author for corresponding; e-mail address: suponananta@yahoo.com
Volume: Vol.38 No.4 (OCTOBER 2011)
Research Article
DOI:
Received: -, Revised: -, Accepted: -, Published: -
Citation: Pisitanusorn A., Yimnirun R. and Ananta S., Phase Formation, Microstructure and Mechanical Properties of ZrO2 Modified-Dental Porcelain Ceramics, Chiang Mai Journal of Science, 2011; 38(4): 590-600.
Abstract
The potential of a combination between single-step sintering and ZrO2 additive as a simple ceramic fabrication method to obtain dental porcelain-based ceramic-nanocomposites with good mechanical properties was demonstrated. Influences of sintering condition on phase formation, densification, microstructure and mechanical properties of these porcelain ceramics were examined via XRD, SEM-EDX and Vickers indentation. It has been found that the choice of both sintering temperature and dwell time is one of the key factors controlling densification and leucite crystallization on the zirconia surface in dental porcelain ceramics.