...High silica bricks are made from waxstone with a high quartz content, and are sometimes used in coke ovens. Chamotte bricks Chamotte is fireclay (a hydrous mineral whose main components are silica SiO2 and alumina Al2O3 ) that has been fired to remove its moisture content (adherent water and crystal water) and shrinkage, and acidic firebricks made from this material are called chamotte bricks or clay bricks. The relationship between the composition and fire resistance of silica-alumina refractories is shown in the figure, but chamotte bricks generally contain less than 50% to about 20% alumina. *Some of the terminology that mentions "fireclay brick" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…石英分の多い蠟石からは高ケイ酸煉瓦が造られて,コークス炉などに用いられることがある。 シャモット煉瓦chamotte brickシャモットとは耐火粘土(シリカSiO2とアルミナAl2O3を主成分とする含水鉱物)を焼成しその含有水分(付着水と結晶水)と収縮を除去したものをいい,これを原料とする酸性耐火煉瓦をシャモット煉瓦あるいは粘土質煉瓦fireclay brickという。シリカ‐アルミナ系耐火物の組成と耐火度との関係を図に示したが,シャモット煉瓦は一般にアルミナ50%未満~20%くらいのものをいう。… ※「fireclay 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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