The effect of low temperature aging on the mechanical property & phase stability of Y-TZP ceramics

Phase stability of 3 mol% yttria stabilized polycrystalline zirconia ceramics (3Y-TZP) was evaluated by aging test in water vapor environment and Raman spectroscopic technique. In our previous study, it has been confirmed that phase stability was improved by controlling sintering temperature. In this study, we pointed our attention and evaluated the influence of surface conditions related to machining and to heat treatment, thus monitoring the changes in phase transformation fraction and residual stress on the material surface. From the results of aging test, an increase in monoclinic fraction was observed for grinded surfaces as compared with polished surfaces. Samples subjected to heat treatment after machining showed improved phase stability. A Vickers indentation print was also introduced on a 3Y-TZP surface, and the relationship between surface condition and low temperature aging was evaluated in the neighborhood of the print. We found that the residual stress fields induced in phase-transformed areas were enhanced during low temperature aging, and that phase stability was improved by heat treatment.

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Effect of grain size on phase stability of monoclinic U–Nb alloy during low-temperature aging

Journal of Nuclear Materials ◽

10.1016/j.jnucmat.2015.05.020 ◽

2015 ◽

Vol 465 ◽

pp. 167-169 ◽

Cited By ~ 5

Author(s):

Yanzhi Zhang ◽

Xinjian Zhang ◽

Xianglin Chen ◽

Guan Weijun ◽

Xiaolin Wang

Keyword(s):

Grain Size ◽

Low Temperature ◽

Phase Stability ◽

Low Temperature Aging ◽

Temperature Aging

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Low-Temperature Aging of t-ZrO2 Polycrystals with 3 mol% Y2O3

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.1987.tb05701.x ◽

1987 ◽

Vol 70 (8) ◽

pp. 537-541 ◽

Cited By ~ 51

Author(s):

HONG-YANG LU ◽

SAN-YUAN CHEN

Keyword(s):

Low Temperature ◽

Low Temperature Aging ◽

Temperature Aging

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Effects of tin addition on the low temperature aging in aluminum-copper alloys

Journal of Japan Institute of Light Metals ◽

10.2464/jilm.24.126 ◽

1974 ◽

Vol 24 (3) ◽

pp. 126-129 ◽

Cited By ~ 1

Author(s):

Hiroshi KIMURA

Keyword(s):

Low Temperature ◽

Copper Alloys ◽

Aluminum Copper Alloys ◽

Low Temperature Aging ◽

Temperature Aging

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The Behavior of Embrittlement Produced by Low Temperature Aging of High Strength Maraging Stainless Steels

Journal of the Japan Institute of Metals and Materials ◽

10.2320/jinstmet1952.43.9_777 ◽

1979 ◽

Vol 43 (9) ◽

pp. 777-785

Author(s):

Yukiteru Asayama

Keyword(s):

Low Temperature ◽

Stainless Steels ◽

High Strength ◽

Low Temperature Aging ◽

Temperature Aging

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CAD/CAM Zirconia for Dental Application

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.320.505 ◽

2013 ◽

Vol 320 ◽

pp. 505-511

Author(s):

Ning Li ◽

Zhi Kai Wu ◽

Chao Jian ◽

Wan Qian Zhao ◽

Jia Zhen Yan

Keyword(s):

Mechanical Properties ◽

Low Temperature ◽

Key Words ◽

20Th Century ◽

Dental Materials ◽

Tetragonal Zirconia ◽

Dental Application ◽

Cad Cam ◽

Low Temperature Aging ◽

Temperature Aging

During the 20th century, both dental materials and dental technologies for the fabrication of dental prosthesis progressed remarkably. Owing to the increased demand of safety and aesthetics, 3 mol% yttria stabilized tetragonal zirconia polycrystalline has been recently introduced in prosthetic dentistry for the fabrication of crowns and fixed partial dentures, in combination with CAD/CAM technique. This greatly changed the conventional dental laboratory work which is labor-intensive and experience-dependent. This review mainly introduced the state of dental zirconia and the application of CAD/CAM technology in dentistry. Key words: Dental Zirconia; CAD/CAM Technique; Mechanical Properties; Transformation Toughing; Low Temperature Aging;

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