Investigation of mechanical properties and low-temperature degradation of dental 3Y-TZP ceramics fabricated by stereolithography in combination with microwave sintering

被引：7

作者：

Wang, Li ^{[1
,2
]}

Jiao, Yang ^{[1
,2
]}

Yao, Lian ^{[1
,2
]}

Sheng, Yang ^{[1
,2
]}

Hao, Zongdong ^{[1
,2
]}

Tang, Weizhe ^{[1
,2
]}

Dou, Rui ^{[1
,2
]}

机构：

[1] Jiangnan Univ, Sch Mech Engn, Jiangsu Key Lab Adv Food Mfg Equipment & Technol, Wuxi 214122, Jiangsu, Peoples R China

[2] Jiangnan Univ, Inst Adv Technol, Wuxi 214122, Jiangsu, Peoples R China

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2023年 / 148卷

基金：

国家重点研发计划;

关键词：

Zirconia; Stereolithography; Microwave sintering; Mechanical properties; Low temperature degradation; MEASURING FRACTURE-TOUGHNESS; Y-TZP CERAMICS; ZIRCONIA CERAMICS; HYDROTHERMAL DEGRADATION; QUANTITATIVE-ANALYSIS; FLEXURAL STRENGTH; GRAIN-SIZE; PHASE; STABILITY; MICROSTRUCTURE;

D O I：

10.1016/j.jmbbm.2023.106211

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The purpose of this study was to obtain dental ceramic materials with excellent mechanical properties and high resistance to low temperature degradation (LTD) via stereolithography (SLA) in combination with microwave sintering (MWS). The results have shown that the unaged MWS-1425 degrees C 3Y-TZP ceramics with uniform microstructure have high density up to 99.04% and excellent mechanical properties (Vickers hardness 14.07 GPa, fracture toughness 4.32 MPa m1/2, flexural strength 947.87 MPa). After 50 h of LTD, the m-phase content of MWS 3Y-TZP ceramics accounts for only 10.3%. In addition, the surface roughness increases by only 1.3 nm, the degraded depth is less than 5 mu m, and the flexural strength exceeds 900 MPa. This exhibits the high resistance to LTD and excellent mechanical properties of dental 3Y-TZP ceramics can be obtained.

引用

页数：12

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