Densification behavior and properties of alumina–chrome ceramics: Effect of TiO2
作者： Mithun Nath , Sandipan Sen , K. Banerjee , A. Ghosh , H.S. Tripathi
DOI: 10.1016/J.CERAMINT.2012.06.013
关键词: Ceramic 、 Metallurgy 、 Corrosion 、 Materials science 、 Flexural strength 、 Microstructure 、 Sintering 、 Atmospheric temperature range 、 Reducing atmosphere 、 Porosity
摘要: Abstract Highly dense alumina–chrome bodies with low porosity are usually used as corrosion and thermal resistant refractories. Alumina–chrome refractory molar ratio 1:1 was developed using chemical grade hydrated alumina chromium (III) oxide by conventional sintering route. Batch materials were attrition milled, isostatically pressed sintered in the temperature range from 1000 °C to 1700 °C 2 h soaking at peak temperature. Phase development of studied X-ray diffraction. Sintering temperature, condition addition aid (TiO 2 ) have immense effect on densification refractory. almost nil apparent 1500 °C reducing atmosphere. Flexural strength room 1200 °C also measured. 1 wt% TiO gives optimum result respect flexural strength.
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