The sintering, microstructure, and phase composition of the eutectic ceramics of the ZrO2–Al2O3–SiO2 system with an MnO additive have been studied. It has been shown that the additive contributes to the decrease in the sintering temperature to 1250–1350°С. The synthesized materials have a high content of the tetragonal phase, a fine crystalline structure with a grain size of 100–600 nm, and high flexural strength up to 420 MPa. The developed low-temperature materials can find application in mechanical engineering as high-temperature machine parts and refractory materials.

中文翻译：

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氧化锰对ZrO2-Al2O3-SiO2体系共晶陶瓷烧结和性能的影响

研究了含有 MnO 添加剂的 ZrO2-Al2O3-SiO2 体系共晶陶瓷的烧结、微观结构和相组成。已经表明，添加剂有助于将烧结温度降低到 1250-1350°С。合成的材料具有较高的四方相含量，晶粒尺寸为 100-600 nm 的细晶结构，以及高达 420 MPa 的高弯曲强度。开发的低温材料可在机械工程中作为高温机械零件和耐火材料得到应用。