Volume 38 Issue 2
Apr.  2023
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SU Xuanbo, LI Longbo, WEI Daling, XIE Shufeng. Influence of Spraying Angle on the Properties of Plasma Sprayed AT13 Ceramic Coatings[J]. Development and Application of Materials, 2023, 38(2): 57-62.
Citation: SU Xuanbo, LI Longbo, WEI Daling, XIE Shufeng. Influence of Spraying Angle on the Properties of Plasma Sprayed AT13 Ceramic Coatings[J]. Development and Application of Materials, 2023, 38(2): 57-62.

Influence of Spraying Angle on the Properties of Plasma Sprayed AT13 Ceramic Coatings

  • Received Date: 2022-07-08
    Available Online: 2023-05-06
  • Micro-and nano-Al2O3-13%TiO2 coatings are sprayed by using the APS system. The influences of the spray angle on the increased thickness of a single pass, coating microstructure, hardness and bonding strength are studied. The results show that with the decrease of the spraying angle, the increased thickness of a single pass and binding strength decrease, that the porosities of the two coatings increase, and that the hardness does not change significantly. When the spray angle is 90°, the two coatings are in good condition, and the increased thickness of a single pass of the nano-Al2O3-13%TiO2 coating is 21.5% higher than that of the micro-Al2O3-13%TiO2 coating. When the spray angle is 45°, the increased thickness of a single pass and bonding strength of the former are 47% and 42.1% higher than those of the latter. When the spray angle is 30°, the microAl2O3-13%TiO2 coating has serious defects, and the nano-Al2O3-13%TiO2 coating also has large pores. The hardness of the micro-Al2O3-13%TiO2 coating is slightly higher than that of nano-Al2O3-13%TiO2.

     

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