Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics.
The present study aimed to evaluate the influence of various heat-pressing procedures (different holding time and heat pressing temperature) on the microstructure and flexural strength of lithium disilicate glass ceramic. An experimental lithium silicate glass ceramic (ELDC) was prepared from the Si...
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doaj-14bc2cc57ef74510930e7b61715c4d162021-03-03T20:04:30ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01105e012689610.1371/journal.pone.0126896Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics.Fu WangZhiguo ChaiZaixi DengJing GaoHui WangJihua ChenThe present study aimed to evaluate the influence of various heat-pressing procedures (different holding time and heat pressing temperature) on the microstructure and flexural strength of lithium disilicate glass ceramic. An experimental lithium silicate glass ceramic (ELDC) was prepared from the SiO2-Li2O-K2O-Al2O3-ZrO2-P2O5 system and heat-pressed following different procedures by varying temperature and holding time. The flexural strength was tested and microstructure was analyzed. The relationships between the microstructure, mechanical properties and heat-pressing procedures were discussed in-depth. Results verified the feasibility of the application of dental heat-pressing technique in processing the experimental lithium disilicate glass ceramic. Different heat-pressing procedures showed significant influence on microstructure and flexural strength. ELDC heat-pressed at 950℃ with holding time of 15 min achieved an almost pore-free microstructure and the highest flexural strength, which was suitable for dental restorative application.https://doi.org/10.1371/journal.pone.0126896 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fu Wang Zhiguo Chai Zaixi Deng Jing Gao Hui Wang Jihua Chen |
spellingShingle |
Fu Wang Zhiguo Chai Zaixi Deng Jing Gao Hui Wang Jihua Chen Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. PLoS ONE |
author_facet |
Fu Wang Zhiguo Chai Zaixi Deng Jing Gao Hui Wang Jihua Chen |
author_sort |
Fu Wang |
title |
Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. |
title_short |
Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. |
title_full |
Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. |
title_fullStr |
Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. |
title_full_unstemmed |
Effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. |
title_sort |
effect of heat-pressing temperature and holding time on the microstructure and flexural strength of lithium disilicate glass-ceramics. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2015-01-01 |
description |
The present study aimed to evaluate the influence of various heat-pressing procedures (different holding time and heat pressing temperature) on the microstructure and flexural strength of lithium disilicate glass ceramic. An experimental lithium silicate glass ceramic (ELDC) was prepared from the SiO2-Li2O-K2O-Al2O3-ZrO2-P2O5 system and heat-pressed following different procedures by varying temperature and holding time. The flexural strength was tested and microstructure was analyzed. The relationships between the microstructure, mechanical properties and heat-pressing procedures were discussed in-depth. Results verified the feasibility of the application of dental heat-pressing technique in processing the experimental lithium disilicate glass ceramic. Different heat-pressing procedures showed significant influence on microstructure and flexural strength. ELDC heat-pressed at 950℃ with holding time of 15 min achieved an almost pore-free microstructure and the highest flexural strength, which was suitable for dental restorative application. |
url |
https://doi.org/10.1371/journal.pone.0126896 |
work_keys_str_mv |
AT fuwang effectofheatpressingtemperatureandholdingtimeonthemicrostructureandflexuralstrengthoflithiumdisilicateglassceramics AT zhiguochai effectofheatpressingtemperatureandholdingtimeonthemicrostructureandflexuralstrengthoflithiumdisilicateglassceramics AT zaixideng effectofheatpressingtemperatureandholdingtimeonthemicrostructureandflexuralstrengthoflithiumdisilicateglassceramics AT jinggao effectofheatpressingtemperatureandholdingtimeonthemicrostructureandflexuralstrengthoflithiumdisilicateglassceramics AT huiwang effectofheatpressingtemperatureandholdingtimeonthemicrostructureandflexuralstrengthoflithiumdisilicateglassceramics AT jihuachen effectofheatpressingtemperatureandholdingtimeonthemicrostructureandflexuralstrengthoflithiumdisilicateglassceramics |
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