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Method for manufacturing high-strength zirconia ceramic core insert
The invention provides a method for manufacturing a high-strength zirconia ceramic core insert and a method for preparing part of zirconia stabilizing powder for the high-strength zirconia ceramic core insert. According to the method for manufacturing the high-strength zirconia ceramic core insert, firstly, scandia and cerium oxide are made to react with zirconia, nano titania and aluminum oxide are mixed at the same time, so that the linear expansion coefficient and thermal stress performance which are more excellent than that of pure zirconia ceramic are obtained, in this way, the material can have high strength, high tenacity and excellent thermal shock resistance, and deformation is unlikely to occur; secondly, an SEBS elastomer, polrvinyl benzene, aldehyde resin and the like are inserted into part of zirconia stabilizing powder for polymerization, so that an interspersed network structure is formed, a stable structural system is obtained, and deformation is unlikely to occur; thirdly, the aldehyde resin and the polrvinyl benzene are taken as main binding agents, in this way, the strength of formed blank is high, conformality is good, the degreasing speed is high, and the precision is high; fourthly, stearate radical is removed during sintering of zinc stearate, so that the zinc stearate is oxidized into zinc oxide, and thus the strength of the core insert is improved.
Method for manufacturing high-strength zirconia ceramic core insert
The invention provides a method for manufacturing a high-strength zirconia ceramic core insert and a method for preparing part of zirconia stabilizing powder for the high-strength zirconia ceramic core insert. According to the method for manufacturing the high-strength zirconia ceramic core insert, firstly, scandia and cerium oxide are made to react with zirconia, nano titania and aluminum oxide are mixed at the same time, so that the linear expansion coefficient and thermal stress performance which are more excellent than that of pure zirconia ceramic are obtained, in this way, the material can have high strength, high tenacity and excellent thermal shock resistance, and deformation is unlikely to occur; secondly, an SEBS elastomer, polrvinyl benzene, aldehyde resin and the like are inserted into part of zirconia stabilizing powder for polymerization, so that an interspersed network structure is formed, a stable structural system is obtained, and deformation is unlikely to occur; thirdly, the aldehyde resin and the polrvinyl benzene are taken as main binding agents, in this way, the strength of formed blank is high, conformality is good, the degreasing speed is high, and the precision is high; fourthly, stearate radical is removed during sintering of zinc stearate, so that the zinc stearate is oxidized into zinc oxide, and thus the strength of the core insert is improved.
Method for manufacturing high-strength zirconia ceramic core insert
ZHANG JIABIN (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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