• Title/Summary/Keyword: $MgO-Cr_2O_3$ brick

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Effects of $Cr_2O_3$ Content on the Properties of Direct-Bonded Magnesia-Chromia Bricks (직접결합 마그네시아-크로미아질 내화벽돌의 특성에 미치는 $Cr_2O_3$ 함유량의 영향)

  • 홍기곤;엄창중
    • Journal of the Korean Ceramic Society
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    • v.34 no.1
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    • pp.63-69
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    • 1997

  • The effects of Cr2O3 content on the properties of direct-bonded MgO-Cr2O3 bricks were investigated in the range of 10 to 30 wt% of Cr2O3. Modulus of rupture of bricks was excellent in about 20 wt% of Cr2O3 content. The corrosion resistance of bricks was improved by increasing Cr2O3 content and was directly pro-portional to the amount of secondary spinels. On the other hand, the spalling resistance of bricks depended on the amount of flux rather than Cr2O3 content.

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