Amdry 958 CoCrAlYSi Hexagonal Boron Nitride hBN High Content / Level

[johnrafiee]

Hi All 

How to reduce the hBN content on amdry 958 coating?

Already adjust the carrier gas but not much change on the coating microstructures.

Parameter as follow

Gun Type : SinplexPro 90
Nozzle Diameter, Ø : 9 mm
Powder Injector Diameter, Ø : 1.8 mm
Powder Injector Angle : 90°
Current : 480 ±10 Amps
Primary Gas, Argon : 50 ± 4.8 NLPM
Secondary Gas, Hydrogen : 4 NLPM
Powder Carrier Gas, Argon : 3 ± 1.1 NLPM
Powder Feedrate : 30 +2/-3 g/min
Spreader/Suction Type : NL 16/1.2
Stirrer Speed : 60 ± 3 RPM
Spray Distance : 90mm
TCP Speed : 500mm/min
APS


Current hBN percentage is around 40-50%. Target is 10-20%

Thank you