…Although generally expensive, alumina has a high melting point of 2050℃, and is used in important places where high temperature and durability are required. Chromia bricks are neutral fireproof bricks mainly made of chromia (chromium oxide Cr 2 O 3 ). Chromite is mainly composed of chromia, but the chromium content is low at 30-50% and there are many impurities, so it is difficult to obtain the characteristics of chromia. … *Some of the terminology that mentions "chromia brick" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一般に高価であるが,アルミナの融点は2050℃と高く,高温高耐用の必要な重要なところに用いられる。 クロミア質煉瓦chromia brickクロミア(酸化クロムCr2O3)を主体とする中性耐火煉瓦。クロム鉄鉱はクロミアを主成分としているが,その含有量が30~50%と低く,不純物が多いので,クロミアの特徴が得がたい。… ※「chromia brick」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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