Chung, TJ Lee, JS Kim, DY Song, H 2024-01-21T14:46:37Z 2024-01-21T14:46:37Z 2021-09-05 1999-11 0002-7820 https://pubs.kist.re.kr/handle/201004/141864 Sintered tetragonal-zirconia polycrystals (TZP) were embedded in a zirconium nitride powder bed and heat-treated at various temperatures. Surface layers of the TZP specimens were transformed to a stabilized cubic-zirconia by nitrogen incorporation, and their thickness was observed to increase by a parabolic rate law. The nitrogen diffusivity was evaluated from the temperature dependence of the nitridation rate. The microstructure of the nitrided layer was composed of different zones of equiaxed and columnar grains. The columnar grains were developed along the nitrogen flux lines. The observed microstructural evolution was explained in terms of nucleation and growth kinetics of nitridation. English AMER CERAMIC SOC Surface nitridation of yttria-doped tetragonal zirconia polycrystals (Y-TZP): Microstructural evolution and kinetics Article 10.1111/j.1151-2916.1999.tb02223.x 1 JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.82, no.11, pp.3193 - 3199 JOURNAL OF THE AMERICAN CERAMIC SOCIETY 82 11 3193 3199 N scie scopus 000085763800039 2-s2.0-0033225311 Materials Science, Ceramics Materials Science Article tetragonal-zirconia polycrystals (TZP)