Effect of sintering and melt casting methods on mechanical properties of zirconia toughened fluorosilicic mica glass - ceramics composite powder
WU Shun
HE Hui-ming
HUANG Fang
GAO Li-xin
ZHAO Wei
Abstract：AIM:To investigate the mechanical properties of zirconia toughened fluorosilicic mica glass - ce ramics composites made by the melt casting and the sintering methods respectively . METHODS: Zirconia toughened fluorosilicic mica glass - ceramics composites were fabricated by melt casting and sintering respectively and mechanical properties were compared. X -ray diffraction( XRD)and scanning electron microscopy(SEM)were used to observe mi crostructures of the glass - ceramics. Three point bending strength and fracture toughness were also measured. RE SULTS : The methods did not affect the main crystal phase of fluorosilicic mica glass - ceramics composites, and the flexural strength and fracture toughness of composites made by sintering method were higher than those by melting. Composites with 5wt%> ZrO_2 prepared by the sintering method showed much higher flexural strength and fracture tough ness, which were (169.4 ± 10. 2) Mpa and (2. 42 ±0. 06) MPa·m~(1/2) respectively. CONCLUSION; The zirconia toughened fluorosilicic mica glass - ceramies composites made by the sintering method have better mechamical proper ties than those made by the melt - casting.
Keywords：sinteringmelt castingzirconia toughenedfluorosilicic mica glass - ceramics
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 650-653 )