Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing anti-aging zirconia ceramic insert core
The invention provides a method for preparing an anti-aging zirconia ceramic insert core, a zirconia powder composite base material and a method for preparing the same. Samarium oxide takes effect with zirconia to achieve the stabilizing effect and has a synergistic effect with magnesium oxide, aluminum oxide and scandium oxide, the thermal mechanical performance of zirconia is improved, so that the zirconia ceramic insert core has high strength and toughness and excellent thermal shock resistance. On the other hand, an ethylene-vinyl acetate copolymer causes thermoplastic polyester elastomer, polyvinyl chloride and linear low density polyethylene to interpenetrate in zirconia ceramic to be polymerized to form an interpenetrating network structure and obtain a stable structure system; dioctyl phthalate serves as a plasticizer, microcrystalline wax, palm oil and calcium stearate serve as auxiliary adhesives, so that an injection molding material is good in mobility, high in demolding performance and short in degreasing cycle, the strength of formed green bodies is guaranteed, the zirconia ceramic insert core obtained after sintering has high strength and anti-aging performance, and the pass rate is improved.
Method for preparing anti-aging zirconia ceramic insert core
The invention provides a method for preparing an anti-aging zirconia ceramic insert core, a zirconia powder composite base material and a method for preparing the same. Samarium oxide takes effect with zirconia to achieve the stabilizing effect and has a synergistic effect with magnesium oxide, aluminum oxide and scandium oxide, the thermal mechanical performance of zirconia is improved, so that the zirconia ceramic insert core has high strength and toughness and excellent thermal shock resistance. On the other hand, an ethylene-vinyl acetate copolymer causes thermoplastic polyester elastomer, polyvinyl chloride and linear low density polyethylene to interpenetrate in zirconia ceramic to be polymerized to form an interpenetrating network structure and obtain a stable structure system; dioctyl phthalate serves as a plasticizer, microcrystalline wax, palm oil and calcium stearate serve as auxiliary adhesives, so that an injection molding material is good in mobility, high in demolding performance and short in degreasing cycle, the strength of formed green bodies is guaranteed, the zirconia ceramic insert core obtained after sintering has high strength and anti-aging performance, and the pass rate is improved.
Method for preparing anti-aging zirconia ceramic insert core
ZHANG JIABIN (Autor:in)
30.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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