REFRACTORY MOULDED ARTICLES MADE OF SILICON CARBIDE WITH MULLITE BONDING, A METHOD OF PRODUCING SUCH ARTICLES, A MOULDING COMPOUND FOR USE AS AN INTERMEDIATE IN THE METHOD, AND THE USE OF SUCH ARTICLES AS KILN FURNITURE

Described are refractory moulded articles made from silicon carbide with a binder phase consisting principally of crystalline mullite. The articles have a high resistance to fracture at temperatures up to 1400 C and very high resistance to thermal shock, and are suitable for use in particular as kil...

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Bibliographische Detailangaben
Hauptverfasser:	ECKERT, KARL-LUDWIG, KAESER, PETER, KERBER, ALBERT, KARA, MEHMET
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES HEATING KILNS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY OVENS REFRACTORIES RETORTS SLAG TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	Described are refractory moulded articles made from silicon carbide with a binder phase consisting principally of crystalline mullite. The articles have a high resistance to fracture at temperatures up to 1400 C and very high resistance to thermal shock, and are suitable for use in particular as kiln furniture. The articles are produced from mixtures of silicon carbide and clay or amorphous silicic acid mixed with very finely divided reactive alumina. L'invention concerne des corps moulés réfractaires à base de carbure de silicium ayant une phase liante consistant essentiellement en mullite cristalline. Les corps moulés présentent des résistances élevées à la rupture à des températures allant jusqu'à 1400 °C et des résistances très élevées à l'éclatement et conviennent particulièrement bien comme matériel d'enfournement. Les corps moulés sont réalisés à partir de mélanges de carbures de silicium et d'argile ou d'acide silicique amorphe en mélange avec de l'alumine réactive à très fines particules.