Lithium Disilicate Glass-Ceramics by Heat Treatment of Lithium Metasilicate Glass-Ceramics Obtained by Hot Pressing

被引：26

作者：

Zhang, Hui ^{[1
]}

He, Zhilong ^{[1
]}

Zhang, Yaming ^{[1
]}

Jing, Wenjia ^{[1
]}

Wang, Bo ^{[1
]}

Yang, Jianfeng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2015年 / 98卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

FRACTURE-TOUGHNESS; HIGH-PRESSURE; MECHANICAL-PROPERTIES; FLEXURAL STRENGTH; MICROSTRUCTURE; CRYSTALLIZATION; P2O5; DENSIFICATION;

D O I：

10.1111/jace.13950

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Lithium disilicate glass-ceramics are widely used as dental ceramics due to their machinability and translucency. In this study, lithium disilicate glass-ceramic was fabricated through heat treatment of lithium metasilicate glass-ceramics obtained by hot pressing of glass powder composed of SiO2-Li2O-P2O5-ZrO2-Al2O3-K2O-CeO2 at low temperature. The crystalline phase, microstructure, and mechanical properties were investigated. The results indicated that lithium metasilicate glass-ceramic with a relative density of higher than 99% was obtained after hot pressing, and glass-ceramic with interlocked rod-like Li2Si2O5 crystals and good flexural strength (338 +/- 20 MPa) was successfully obtained through heat treatment. The two-step method was believed to be feasible in tailoring the microstructure and mechanical properties of lithium disilicate glass-ceramics.

引用

页码：3659 / 3662

页数：4

共 26 条

[1] Influence of hot pressing on the microstructure and fracture toughness of two pressable dental glass-ceramics [J].

Albakry, M ;

Guazzato, M ;

Swain, MV .

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 2004, 71B (01) :99-107

[2] Fracture toughness and hardness evaluation of three pressable all-ceramic dental materials [J].

Albakry, M ;

Guazzato, M ;

Swain, MV .

JOURNAL OF DENTISTRY, 2003, 31 (03) :181-188

[3] Biaxial flexural strength, elastic moduli, and x-ray diffraction characterization of three pressable all-ceramic materials [J].

Albakry, M ;

Guazzato, M ;

Swain, MV .

JOURNAL OF PROSTHETIC DENTISTRY, 2003, 89 (04) :374-380

[4] Densification and crystallization of glass powder compacts during constant heating rate sintering [J].

Boccaccini, AR ;

Stumpfe, W ;

Taplin, DMR ;

Ponton, CB .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 219 (1-2) :26-31

[5] Effect of high pressure in the Li2O-2SiO2 crystallization [J].

Buchner, S. ;

Soares, P. ;

Pereira, A. S. ;

Ferreira, E. B. ;

Balzaretti, N. M. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2010, 356 (52-54) :3004-3008

[6] Behavior of the refractive index of lithium disilicate glass ceramic processed at high pressure and high temperature [J].

Buchner, Silvio ;

Pereira, Marcelo Barbalho ;

Balzaretti, Naira Maria .

OPTICAL MATERIALS, 2012, 34 (05) :826-831

[7] Rietveld quantitative amorphous content analysis [J].

De La Torre, AG ;

Bruque, S ;

Aranda, MAG .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2001, 34 :196-202

[8] Structure-property relationships and densification-crystallization behaviours of simplified lithium disilicate glass compositions [J].

Fernandes, Hugo R. ;

Tulyaganov, Dilshat U. ;

Pascual, Maria J. ;

Ferreira, Jose M. F. .

CERAMICS INTERNATIONAL, 2014, 40 (01) :129-140

[9] In situ crystallization of lithium disilicate glass: Effect of pressure on crystal growth rate [J].

Fuss, T. ;

Ray, C. S. ;

Lesher, C. E. ;

Day, D. E. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2006, 352 (21-22) :2073-2081

[10] Relative translucency of six all-ceramic systems. Part II: Core and veneer materials [J].

Heffernan, MJ ;

Aquilino, SA ;

Diaz-Arnold, AM ;

Haselton, DR ;

Stanford, CM ;

Vargas, MA .

JOURNAL OF PROSTHETIC DENTISTRY, 2002, 88 (01) :10-15

← 1 2 3 →