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A platform for research: civil engineering, architecture and urbanism
PRODUCTION METHOD OF STEATITE CERAMICS WITH IMPROVED ELECTRICAL PROPERTIES
The object of the invention is a process for producing alkaline steatite ceramics having controlled electrical properties for electrotechnology. Alkaline steatite ceramics of the invention belongs to a group of magnesium silicates of C 220 type. Steatite ceramics is an electrical insulator with a relatively low electrical conductivity at increased temperature. To produce the alkaline steatite ceramics the materials talc, kaolin, clays, bentonite and dolomite were used. The mixture can contain up to 1.5 % by weight of iron oxides. After the mixture is ground and the products are formed, the blanks are fired at a temperature in the range from 1280 to 1340 °C for 1 hour to 10 hours. Alkaline steatite ceramics with bentonite without added kaolin has specific electrical resistance at 400 °C 1.4 x 106 Ohm m. The ceramics, in which the total content of bentonite is replaced by kaolin, has specific electrical resistance at 400 °C more than 1 x 108 Ohm m.
PRODUCTION METHOD OF STEATITE CERAMICS WITH IMPROVED ELECTRICAL PROPERTIES
The object of the invention is a process for producing alkaline steatite ceramics having controlled electrical properties for electrotechnology. Alkaline steatite ceramics of the invention belongs to a group of magnesium silicates of C 220 type. Steatite ceramics is an electrical insulator with a relatively low electrical conductivity at increased temperature. To produce the alkaline steatite ceramics the materials talc, kaolin, clays, bentonite and dolomite were used. The mixture can contain up to 1.5 % by weight of iron oxides. After the mixture is ground and the products are formed, the blanks are fired at a temperature in the range from 1280 to 1340 °C for 1 hour to 10 hours. Alkaline steatite ceramics with bentonite without added kaolin has specific electrical resistance at 400 °C 1.4 x 106 Ohm m. The ceramics, in which the total content of bentonite is replaced by kaolin, has specific electrical resistance at 400 °C more than 1 x 108 Ohm m.
PRODUCTION METHOD OF STEATITE CERAMICS WITH IMPROVED ELECTRICAL PROPERTIES
HERSTELLUNGSVERFAHREN VON STEATITKERAMIK MIT VERBESSERTEN ELEKTRISCHEN EIGENSCHAFTEN
PROCESSUS DE PRÉPARATION DES CÉRAMIQUES EN STÉATITE AVEC DES MEILLEURES PROPRIÉTÉS ÉLECTRIQUES
RAMSAK IRENA (author) / RAZPOTNIK MARIJA (author) / MAKOVSEK KATJA (author) / KUSCER HROVATIN DANJELA (author) / DRNOVSEK SILVO (author) / HOLC JANEZ (author)
2018-08-15
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
STEATITE CERAMICS WITH IMPROVED ELECTRICAL PROPERTIES AND A METHOD FOR THE PRODUCTION THEREOF
| European Patent Office | 2016
METHOD FOR PRODUCING NON-ALKALINE STEATITE CERAMICS WITH IMPROVED ELECTRICAL PROPERTIES
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METHOD FOR PRODUCING STEATITE CERAMICS OF C 221 TYPE WITH IMPROVED ELECTRICAL PROPERTIES
| European Patent Office | 2018
Physical chemistry of firing steatite ceramics
| Engineering Index Backfile | 1943
| Engineering Index Backfile | 1943