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Preparation method of anti-purple-halo transparent ceramic panel for replacing sapphires
The invention relates to a preparation method of an anti-purple-halo transparent ceramic panel for replacing sapphires. A transparent ceramic is a cubic crystal system and comprises AlON based ceramics, Y2O3 based ceramics, Spinel based ceramics and YAG based ceramics. The preparation method of the transparent ceramic comprises the following steps: adding a certain amount of sintering additives, binding agents, dispersing agents, liquid media, grinding balls and/or rare earth oxides into ceramic powder, performing ball-milling, uniformly mixing, then performing tape casting molding, or performing slip casting molding, or performing gel casting molding, or performing injection molding, or performing dry-pressing molding to obtain a ceramic biscuit, degreasing a molded biscuit, and then sintering to obtain the ceramic; and performing annealing, polishing and anti-reflection film coating treatment on the obtained ceramic to obtain the transparent ceramic panel of which the transmittance is about 95%. The transparent ceramic panel disclosed by the invention does not need cutting processing, is easily-controllable in shape, can be used for simplifying a processing technique, also is short in ceramic production cycle, and ensures that the productivity can be improved and the cost can be reduced.
Preparation method of anti-purple-halo transparent ceramic panel for replacing sapphires
The invention relates to a preparation method of an anti-purple-halo transparent ceramic panel for replacing sapphires. A transparent ceramic is a cubic crystal system and comprises AlON based ceramics, Y2O3 based ceramics, Spinel based ceramics and YAG based ceramics. The preparation method of the transparent ceramic comprises the following steps: adding a certain amount of sintering additives, binding agents, dispersing agents, liquid media, grinding balls and/or rare earth oxides into ceramic powder, performing ball-milling, uniformly mixing, then performing tape casting molding, or performing slip casting molding, or performing gel casting molding, or performing injection molding, or performing dry-pressing molding to obtain a ceramic biscuit, degreasing a molded biscuit, and then sintering to obtain the ceramic; and performing annealing, polishing and anti-reflection film coating treatment on the obtained ceramic to obtain the transparent ceramic panel of which the transmittance is about 95%. The transparent ceramic panel disclosed by the invention does not need cutting processing, is easily-controllable in shape, can be used for simplifying a processing technique, also is short in ceramic production cycle, and ensures that the productivity can be improved and the cost can be reduced.
Preparation method of anti-purple-halo transparent ceramic panel for replacing sapphires
HU NINGNING (author) / HUANG YUNQUAN (author)
2015-09-02
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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