Abstract
The changes in the physical and chemical properties of ZrO2–Y2O3–CeO2–Al2O3 nanocrystalline powder with 0.2 wt.% CoO microadditive during thermal processing in the 400–1300°C temperature range are investigated. It is shown that CoO microadditive reduces the specific surface area of the powder and significantly affects the temperature range of the F-ZrO2 → T-ZrO2 phase transformation. The morphology changes topologically continuously. The phase transformation in the ZrO2–Y2O3–CeO2–Al2O3 system occurs in the 850–1150°C temperature range. In the presence of CoO microadditive, this range is 700–850°C.
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