Abstract

The effect of complex additives based on cobalt, iron, and manganese oxides and sodium silicate on the phase composition, microstructure, mechanical properties, and sintering of tetragonal zirconia ceramics stabilized with 3 mol % yttria and containing 10 wt % alumina (3Y–TZP–10Al₂O₃) was studied. The introduction of complex additives significantly affected sintering of the ceramics: the open porosity was less than 1% after annealing at 1250°C. The use of Na₂Si₂O₅–0.33% Mn as a sintering additive provided the minimum of porosity for sintering temperature of 1300°C. Ceramics with flexural strength of 500 ± 16 MPa and the microhardness of 10 GPa was obtained.

中文翻译：

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基于铁、钴、锰氧化物和硅酸钠的复合添加剂对低温陶瓷 3Y-TZP-Al2O3 烧结和性能的影响

摘要

基于钴、铁、锰氧化物和硅酸钠的复合添加剂对用 3 mol% 氧化钇稳定并含有 10 wt% 氧化铝 (3Y-TZP-) 的四方晶氧化锆陶瓷的相组成、微观结构、机械性能和烧结的影响10Al ₂ O ₃ ) 进行了研究。复合添加剂的引入显着影响了陶瓷的烧结：在 1250°C 退火后开孔率小于 1%。使用 Na ₂ Si ₂ O ₅ –0.33% Mn 作为烧结添加剂可在 1300°C 的烧结温度下提供最小的孔隙率。陶瓷的抗弯强度为 500±16 MPa，显微硬度为 10 GPa。