Process for producing a ceramic material and process for coating of workpieces with this material

摘要

It is known that silicate-containing aluminium titanate with the addition of oxide compounds can be used as a material for producing refractory articles. From this starting material there is produced a melt which, after solidification thereof, is comminuted and, with addition of a binder, is converted into a suspension from which spherical granules are produced. This material is simple to produce and is also suitable for shaping (forming) bodies which can be used as ceramic linings. So that prefabrication of the ceramic linings as compact construction parts can be omitted and the ceramic material can instead be applied to workpieces by spraying, it is proposed that granules having a size between 5 and 90 mu be separated from the intermediate product and that these be subjected to firing. The duration of firing is from about 5 to 120 minutes, the temperature being between 400 and 900@C. The ceramic material improved in this way is outstandingly suitable for application by spraying onto workpiece surfaces to be coated.