SAMPLE HFPD COATINGS--ZIRCONIA
BENEFITS: Wide Range of Properties Possible for Each Material Family
YSZ (Amperit 825.0)
HV0,3 = 934 (avg. of 5 measurements)
Propylene 50 slpm
Oxygen 180 slpm
Feed rate: 16 g/min
Efficiency: <20%



Alternative Processing
Kinematic parameters- of same stock material yields higher productivity but lower hardness values, eg:
HV0,3 = 766 (avg. of 5 measurements)
Propylene 50 slpm
Oxygen 180 slpm
Feed rate: 50 g/min
Efficiency: <20%



YSZ (Nanox 4017)
HV0,3 = 864 (av. of 5 measurements)
Propylene 48 slpm
Oxygen 180 slpm
Feed rate: 40 g/min
Efficiency: <20%
Porosity (about 4%) is induced to be higher than in the above YSZ Amperit coatings by the combination of a different stock material and process parameters (kinematics)

SAMPLE HFPD COATINGS--CERMETS
BENEFITS: Excellent Economic Performance
WC-12Co (Amperit 518.280)
HV0,3 = 984 (av. of 10 measurements)
Propylene 45 slpm
Oxygen 160 slpm
Feed rate: 100 g/min
Efficiency: 65%



WC-17Co (Amperit 526.074)
HV0,3 = 1010 (av. of 10 measurements)
Propylene 50 slpm
Oxygen 160 slpm
Feed rate: 130 g/min
Efficiency: 60%



Cr3C2-Ni:Cr (Diamalloy 3007)
HV0,3 = 780 (av. of 10 measurements)
Propylene 55 slpm
Oxygen 170 slpm
Feed rate: 67 g/min
Efficiency: 40%



SAMPLE HFPD PATENT PENDING COATING
Cr3C2 Ni-Cr + YSZ on Titanium Alloys
BENEFITS: A combination of the high speed velocity particles and the low thermal input characteristic of HFPD, provides Excellent Protection under Cyclic Oxidation Performance



Results of oxidation testing (700 C and 100 h) show formation of an α-case layer in the interphase and oxidation of the titatium substrate coated with HVOF, whereas the HFPD coating prevents the formation of α-case and the oxidation of the substrate under the test conditions