Results 251 to 260 of about 28,194 (299)

Paramagnetic-defect kinetics in yttria-stabilized zirconia

Solid State Ionics, 1991
Abstract The concentration and the thermal stability of paramagnetic defects induced by different treatments in ZrO 2 -12%Y 2 O 3 and ZrO 2 -24%Y 2 O 3 are analyzed by studying their EPR signals. The spectroscopic features of the EPR spectra show that the same types of centers are created in X-ray or UV-light irradiated samples and in samples ...
Azzoni, CB, PALEARI, ALBERTO MARIA FELICE   +1 more
openaire   +2 more sources

Annihilation of paramagnetic centers in yttria-stabilized zirconia

Solid State Ionics, 1991
Abstract We propose, starting from a simple energy level structure, a model for the kinetics of thermal annihilation of paramagnetic centers induced in yttria-stabilized zirconia. Previous experimental works show very different activation energies and frequency factors from sample to sample.
AZZONI, C, PALEARI, ALBERTO MARIA FELICE
openaire   +2 more sources

In Vitro Aging of Yttria‐Stabilized Zirconia

Journal of the American Ceramic Society, 1989
Yttria‐stabilized zirconia was aged in distilled water, saline, and Ringer's solution for 140, 304, and 453 d. The significant decreases in strength (13% to 22%) is attributed to the phase transformation of zirconia from tetragonal to monoclinic. The effect of aging stabilized zirconia in physiological media is still unresolved.
openaire   +2 more sources

Creep in Yttria‐ and Scandia‐Stabilized Zirconia

Journal of the American Ceramic Society, 1970
Compression creep measurements at constant load on ZrO2‐6 mol% Sc2O3 (grain size ∼1 μm), ZrO2‐6 mol% Y2O3 (grain size ∼17 μm), and heat‐treated ZrO2‐6 mol% Sc2O3 (grain size ∼2 μm) yield activation energies of 89, 86, and 74 kcal/mol, respectively. The creep rates are linearly proportional to the inverse square of the grain size of the material.
openaire   +2 more sources

Digital light processing-stereolithography three-dimensional printing of yttria-stabilized zirconia

, 2020
Zhang Jinjin, Wei Luyang, Xiuxia Meng, Fangyong Yu, Naitao Yang, Shaomin Liu   +5 more
semanticscholar   +1 more source

Dense 8 mol% yttria-stabilized zirconia electrolyte by DLP stereolithography

, 2020
Bohang Xing, Chuan Cao, Weiming Zhao, Minhao Shen, Cao Wang, Zhe Zhao   +5 more
semanticscholar   +1 more source

Flash sintering of yttria-stabilized zirconia: Fundamental understanding and applications

, 2020
K. Ren, Jinling Liu, Yiguang Wang
semanticscholar   +1 more source

Aging resistance, mechanical properties and translucency of different yttria-stabilized zirconia ceramics for monolithic dental crown applications.

Dental Materials, 2018
E. Camposilvan, R. Leone, L. Grémillard, R. Sorrentino, F. Zarone, Marco Ferrari, J. Chevalier   +6 more
semanticscholar   +1 more source

The effects of precipitants on co-precipitation synthesis of yttria-stabilized zirconia nanocrystalline powders

Journal of Sol-Gel Science and Technology, 2019
Zhangyi Huang, Wei Han, Zhao Feng, Jianqi Qi, Di Wu, N. Wei, Z. Tang, Yutong Zhang, Junjing Duan, T. Lu   +9 more
semanticscholar   +1 more source

Microscopic mapping of dopant content and its link to the structural and thermal stability of yttria-stabilized zirconia polycrystals

Journal of Materials Science, 2019
Wenliang Zhu, Shizuka Nakashima, E. Marin, H. Gu, G. Pezzotti   +4 more
semanticscholar   +1 more source