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On the Modification of Hydration Resistance of CaO with ZrO 2 Additive
Author(s) -
Chen Guangyao,
Li Baotong,
Zhang Hao,
Qin Ziwei,
Lu Xionggang,
Li Chonghe
Publication year - 2016
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12606
Subject(s) - materials science , crucible (geodemography) , refractory (planetary science) , porosity , titanium alloy , metallurgy , titanium , hot isostatic pressing , induction furnace , alloy , composite material , chemistry , computational chemistry
Various ZrO 2 /CaO samples were fabricated by cold isostatic pressing and sintered at 1750°C for 4 h. It was observed that the sample with 12% ZrO 2 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 CaZrO 3 on the surface of CaO. The CaO crucible with 12 mol% ZrO 2 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.