Preparation of Machinable Zirconia Ceramics as a Dental Prosthetic Material
Source abstract
Abstract
The zirconia ceramic as a dental prosthetic material was prepared by liquid-phase sintering with Ca02-Al2O3 -SiO2 glass as the sintering aid. And the bending strength, fracture toughness, thermal expansion and machinable property of the sintered bodies were valued. The results obtained show that (1) CaO2-Al2O3-SiO2 glass is effective to lower the sintering temperature of zirconia ceramic to 1300℃; (2) the machinability of the dental prosthetic zirconia ceramic is comparable to that of In-Ceram; (3) its thermal expansion coefficient is 8.15-7.19×10-6/℃, bending strength is 360-340MPa and fracture toughness is 3.5-2.7MPa·m1/2.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Dental materials and restorations · Dental Implant Techniques and Outcomes · Advanced ceramic materials synthesis
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References
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