Paek, YK Ahn, JH Kim, GH Kang, SJL 2024-01-21T10:37:16Z 2024-01-21T10:37:16Z 2021-09-01 2002-06 0002-7820 https://pubs.kist.re.kr/handle/201004/139512 The densification behavior of a 3-mol%-Y2O3-doped ZrO2 (3Y-ZrO2) has been investigated under N-2 and O-2 atmospheres. Powder compacts have been sintered at 1550degrees and 1400degreesC for various times. The density of the specimen sintered at 1550degreesC is higher in N-2 than in O-2, while the contrary result is obtained in the case of the specimen sintered at 1400degreesC. Such results can be explained in terms of nitrogen solubility and oxygen vacancy in a ZrO2 matrix. Because nitrogen solubility into the ZrO2 increases with an increase in heat-treatment temperature, leading to the formation of oxygen vacancy, the densification rate becomes higher. The present study thus shows evidence of nitrogen solubility into the ZrO2 and its role on the densification behavior of 3Y-ZrO2. English AMER CERAMIC SOC MECHANICAL-PROPERTIES TETRAGONAL ZIRCONIA DEFECT MECHANISM GRAIN-GROWTH PHASE CERAMICS MICROSTRUCTURE STABILITY Y2O3 SIZE Effect of nitrogen atmosphere on the densification of a 3-mol %-yttria-doped zirconia Article 10.1111/j.1151-2916.2002.tb00327.x 1 JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.85, no.6, pp.1631 - 1633 JOURNAL OF THE AMERICAN CERAMIC SOCIETY 85 6 1631 1633 scie scopus 000176667400049 2-s2.0-0036607844 Materials Science, Ceramics Materials Science Article MECHANICAL-PROPERTIES TETRAGONAL ZIRCONIA DEFECT MECHANISM GRAIN-GROWTH PHASE CERAMICS MICROSTRUCTURE STABILITY Y2O3 SIZE