@article{LI2021, 
author = {Ke LI and Jiancun RAO and Congqin NING},
title = {Optimized sintering and mechanical properties of Y-TZP ceramics for dental restorations by adding lithium disilicate glass ceramics},
year = {2021},
journal = {Journal of Advanced Ceramics},
volume = {10},
number = {6},
pages = {1326-1337},
keywords = {yttria stabilized tetragonal zirconia polycrystalline (Y-TZP), lithium disilicate glass ceramics (LDGC), sintering, mechanical properties, dental restoration},
url = {https://www.sciopen.com/article/10.1007/s40145-021-0507-9},
doi = {10.1007/s40145-021-0507-9},
abstract = {The novel dental ceramics can be fabricated at lower temperatures when sol-gel derived lithium disilicate glass ceramics (LDGC) was used as an additive for yttria stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics. The effect of LDGC on the sintering, mechanical, and translucent properties of Y-TZP ceramics was investigated in the present study. The results showed that the LDGC additive effectively improved the densification of Y-TZP at 1100 ℃, which was much lower than the sintering temperature for pure Y-TZP. When sintered at 1100 ℃, the Y-TZP with 1 wt% LDGC reached a relative density of 95.45%, and prossessed a flexural strength of 482.4 MPa and a fracture toughness of 5.94 MPa·m1/2. Moreover, its translucency was also improved. While, the addition of LDGC could result in an escape of yttrium atoms from the grain lattice of zirconia, which induced the tetragonal-monoclinic transformation of zirconia and abnormal growth of monoclinic grains. The escaped yttrium atoms diffused into the intergranular glass phase. The results indicated that the novel Y-TZP-LDGC ceramics has a great potential to be used for all-ceramic restorations.}
}