Krosakiharima Corporation

Daisuke Yoshitsugu

Katsumi Morikawa

A zirconia-carbon-containing refractory includes aggregate grains, a carbon bond formed between the aggregate grains, 80% by mass or more of a ZrOcomponent, and a carbonaceous material, in which the total volume of open pores and the carbonaceous material in the structure of the refractory is in the range of 25% to 42% by volume, open pores each having a diameter of 10 &#x3bc;m or more account for 30% or less of the total volume of open pores in the structure of the refractory, and carbonaceous material grains each having a maximum length exceeding 45 &#x3bc;m in the carbonaceous material in the zirconia-carbon-containing refractory account for less than 60% by mass of the total mass of the carbonaceous material except the bonding carbon in the zirconia-carbon-containing refractory.

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Kitakyushu, Japan

Daisuke Yoshitsugu