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Preparation method of high-elasticity nano zirconia-base ceramic
The invention relates to a preparation method of a high-elasticity nano zirconia-base ceramic, which comprises the following steps: sequentially carrying out ultrasonic decontamination cleaning on a stainless steel base with gasoline and alcohol, polishing until the coarseness is 0-2 mu m, and spraying 3.5% NaCl brine on the surface; putting the stainless steel base with NaCl in a plasma spraying-physical deposition facility, vacuumizing to 0.5 mbar, charging argon to 35 mbar, and vacuumizing to 0.5-2.5 mbar; spraying a coating of 7 wt% Y2O3-ZrO2 (7YSz) powder with the particle size of 5-22 mu m, wherein the spraying power is 100-160 kW, the plasma gas Ar flow rate is 30-45 SLPM, the He flow rate is 60-80 SLPM, the powder delivery rate is 15-20 g/minute, the spraying distance is 2.0-2.2m, and the coating thickness is 150-450 mu m; and after finishing spraying, immersing in water, and peeling from the stainless steel base to obtain the high-elasticity nano zirconia-base ceramic. The method has the advantages of high efficiency and low cost, and can implement industrial production. The prepared nano ceramic has high elasticity at room temperature.
Preparation method of high-elasticity nano zirconia-base ceramic
The invention relates to a preparation method of a high-elasticity nano zirconia-base ceramic, which comprises the following steps: sequentially carrying out ultrasonic decontamination cleaning on a stainless steel base with gasoline and alcohol, polishing until the coarseness is 0-2 mu m, and spraying 3.5% NaCl brine on the surface; putting the stainless steel base with NaCl in a plasma spraying-physical deposition facility, vacuumizing to 0.5 mbar, charging argon to 35 mbar, and vacuumizing to 0.5-2.5 mbar; spraying a coating of 7 wt% Y2O3-ZrO2 (7YSz) powder with the particle size of 5-22 mu m, wherein the spraying power is 100-160 kW, the plasma gas Ar flow rate is 30-45 SLPM, the He flow rate is 60-80 SLPM, the powder delivery rate is 15-20 g/minute, the spraying distance is 2.0-2.2m, and the coating thickness is 150-450 mu m; and after finishing spraying, immersing in water, and peeling from the stainless steel base to obtain the high-elasticity nano zirconia-base ceramic. The method has the advantages of high efficiency and low cost, and can implement industrial production. The prepared nano ceramic has high elasticity at room temperature.
Preparation method of high-elasticity nano zirconia-base ceramic
ZHOU KESONG (author) / ZHANG XIAOFENG (author) / DENG CHUNMING (author) / DENG CHANGGUANG (author) / LIU MIN (author) / ZHANG JIFU (author) / SONG JINBING (author)
2015-04-08
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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