Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength aluminous electroceramics and preparation method thereof
The invention relates to high-strength aluminous electroceramics. The high-strength aluminous electroceramics contain the following components in percentage by mass: 45-50% of alumina, 10-15% of feldspar, 35-45% of clay and 0.2-2% of rare-earth oxide. According to the high-strength aluminous electroceramics, the rare-earth oxide is doped, so that the increase of generation of a mullite phase in a microstructure of electroceramics is facilitated; mullite needles are inserted in a corundum flake phase to form a reticular structure, so that the bending strength of the electroceramics can be remarkably improved; the bending strength, including drying transverse strength, drying moisture absorption bending strength, unglazed bending strength and glazed bending strength, of the electroceramics is improved, and the bending strength of both unglazed porcelain and glazed porcelain is increased by at least 20%; and the high-strength aluminous electroceramics are applicable to the technical field of ultra-high voltage and extra-high voltage. The invention also provides a preparation method for the high-strength aluminous electroceramics.
High-strength aluminous electroceramics and preparation method thereof
The invention relates to high-strength aluminous electroceramics. The high-strength aluminous electroceramics contain the following components in percentage by mass: 45-50% of alumina, 10-15% of feldspar, 35-45% of clay and 0.2-2% of rare-earth oxide. According to the high-strength aluminous electroceramics, the rare-earth oxide is doped, so that the increase of generation of a mullite phase in a microstructure of electroceramics is facilitated; mullite needles are inserted in a corundum flake phase to form a reticular structure, so that the bending strength of the electroceramics can be remarkably improved; the bending strength, including drying transverse strength, drying moisture absorption bending strength, unglazed bending strength and glazed bending strength, of the electroceramics is improved, and the bending strength of both unglazed porcelain and glazed porcelain is increased by at least 20%; and the high-strength aluminous electroceramics are applicable to the technical field of ultra-high voltage and extra-high voltage. The invention also provides a preparation method for the high-strength aluminous electroceramics.
High-strength aluminous electroceramics and preparation method thereof
WU WENHUA (Autor:in) / LIU JIBO (Autor:in) / WANG ZHIJIAN (Autor:in) / TANG JIEXIONG (Autor:in)
21.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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