On the Modification of Hydration Resistance of CaO with ZrO2 Additive |
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| Authors: | Guangyao Chen Baotong Li Hao Zhang Ziwei Qin Xionggang Lu Chonghe Li |
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| Affiliation: | 1. State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, China;2. Shanghai Special Casting Engineering Technology Research Center, Shanghai, China |
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| Abstract: | Various ZrO2/CaO samples were fabricated by cold isostatic pressing and sintered at 1750°C for 4 h. It was observed that the sample with 12% ZrO2 additive possessed the good hydration resistance and had the lowest apparent porosity of about 0.75%; its weight additive stored after 56 days was less than 0.6 wt%, and it contributed to the occurrence of CaZrO3 on the surface of CaO. The CaO crucible with 12 mol% ZrO2 additive did not react with titanium melt during melting TiNi alloy. This provides a support for searching a new refractory with the good hydration resistance for induction melting titanium alloys. |
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| Keywords: | CaO refractory ZrO2 additive hydration resistance titanium alloys |
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