Gel casting method of aluminum oxide-zirconium dioxide composite ceramic
A technology of zirconia and composite ceramics, which is applied in the field of ceramics, can solve the problems of easy peeling of ceramics, and achieve the effect of improving the uniformity of bonding, preventing agglomeration, and promoting uniform dispersion at the nanoscale
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[0016]Example 1
[0017]Gel injection molding method of alumina-zirconia complex ceramic, including steps:
[0018]Step 1, the aluminum chloride is added to anhydrous ethanol and stir well, then the zirconium chloride low temperature ultrasonic dispersion is added to form a mixture; the concentration of aluminum chloride in anhydrous ethanol is 100-200 g / L, stirring speed is 1000 -2000R / min, the addition of zirconium chloride is 20-40% of the quality of aluminum chloride, the temperature of 5-10 ° C, and the ultrasonic frequency is 60-80 kHz;
[0019]Step 2, the ethylcellulose is added to the mixture to ultrasonically dispersed 2-4h to obtain a dispensed alcohol fluid; the addition of ethylcellulose is 50-80% of the quality of aluminum chloride, the ultrasonic dispersion temperature is 20-30 ° C, the ultrasonic frequency is 90-120 kHz;
[0020]Step 3, blend the ammonia gas to the water vapor to form a mixture, and slowly pass into the dispensed alcohol solution until the precipitate is no l...
Example Embodiment
[0023]Example 2
[0024]Gel injection molding method of alumina-zirconia complex ceramic, including steps:
[0025]Step 1, the aluminum chloride is added to anhydrous ethanol and stir well, then the zirconium chloride low temperature ultrasonic dispersion is added to form a mixture; the concentration of aluminum chloride in anhydrous ethanol is 100-200 g / L, stirring speed is 1000 -2000R / min, the addition of zirconium chloride is 20-40% of the quality of aluminum chloride, the temperature of 5-10 ° C, and the ultrasonic frequency is 60-80 kHz;
[0026]Step 2, the ethylcellulose is added to the mixture to ultrasonically dispersed 2-4h to obtain a dispensed alcohol fluid; the addition of ethylcellulose is 50-80% of the quality of aluminum chloride, the ultrasonic dispersion temperature is 20-30 ° C, the ultrasonic frequency is 90-120 kHz;
[0027]Step 3, blend the ammonia gas to the water vapor to form a mixture, and slowly pass into the dispensed alcohol solution until the precipitate is no l...
Example Embodiment
[0030]Example 3
[0031]Gel injection molding method of alumina-zirconia complex ceramic, including steps:
[0032]Step 1, the aluminum chloride is added to anhydrous ethanol and stir well, then the zirconium chloride low temperature ultrasonic dispersion is added to form a mixture; the concentration of aluminum chloride in anhydrous ethanol is 100-200 g / L, stirring speed is 1000 -2000R / min, the addition of zirconium chloride is 20-40% of the quality of aluminum chloride, the temperature of 5-10 ° C, and the ultrasonic frequency is 60-80 kHz;
[0033]Step 2, the ethylcellulose is added to the mixture to ultrasonically dispersed 2-4h to obtain a dispensed alcohol fluid; the addition of ethylcellulose is 50-80% of the quality of aluminum chloride, the ultrasonic dispersion temperature is 20-30 ° C, the ultrasonic frequency is 90-120 kHz;
[0034]Step 3, blend the ammonia gas to the water vapor to form a mixture, and slowly pass into the dispensed alcohol solution until the precipitate is no l...
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