…It is made by crushing chamotte, adjusting the particle size, adding raw fireclay and water as a binder, and molding it, and firing it at 1300 to 1400°C. Zirconia bricks are acidic firebricks whose main component is zirconia ZrO2 . They have low thermal conductivity, high electrical conductivity at high temperatures, are not easily wetted by molten metal, and have high hot strength. In addition, the melting point of zirconia is high at 2710°C, so they are used in nozzles for continuous steel casting, petrochemicals, glass kilns, high-temperature kilns, etc. … *Some of the terminology that mentions "zirconia brick" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…シャモットを粉砕し,粒度調整したものに結合剤として生の耐火粘土と水を加えて成形し,1300~1400℃で焼成して製造する。 ジルコニア質煉瓦zirconia brickジルコニアZrO2を主成分とする酸性耐火煉瓦。熱伝導率が小さく,高温で電気伝導性が大きく,溶融金属にぬれにくく,熱間強度が大きいなどの特徴をもち,また,ジルコニアの融点が2710℃と高く,製鋼連続鋳造用ノズル,石油化学用,ガラス窯,高温窯炉などに活用されている。… ※「zirconia 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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