Chung, TJ Song, HS Kim, GH Kim, DY 2024-01-21T18:03:39Z 2024-01-21T18:03:39Z 2021-09-05 1997-10 0002-7820 https://pubs.kist.re.kr/handle/201004/143578 The low-temperature degradation of zirconia (ZrO2) that was doped with 3 mol% yttria (Y2O3) (3Y-TZP) was prevented by the heat treatment of sintered specimens in nitrogen. The heat treatment of sintered specimens resulted in a surface layer that was stabilized by nitrogen ions, whereas the interior was only slightly affected by the heat treatment. X-ray diffractometry and transmission electron microscopy analyses revealed that the stabilized surface layer consisted of cubic grains with tetragonal precipitates. Although the presence of the surface layer decreased the strength of the sintered 3Y-TZP, the strength of nitrified specimens was maintained when low-temperature annealing was applied. English AMER CERAMIC SOC TRANSFORMATION ZRO2 SURFACE SYSTEM CERAMICS Y2O3 Microstructure and phase stability of yttria-doped tetragonal zirconia polycrystals heat treated in nitrogen atmosphere Article 1 JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.80, no.10, pp.2607 - 2612 JOURNAL OF THE AMERICAN CERAMIC SOCIETY 80 10 2607 2612 scie scopus A1997YB06000016 2-s2.0-0031258599 Materials Science, Ceramics Materials Science Article; Proceedings Paper TRANSFORMATION ZRO2 SURFACE SYSTEM CERAMICS Y2O3 Y-TZP nitrogen low temperature degradation phase transformation