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Yttria Zirconia for Thermal Barrier Coating

Grade:
Standard
High Purity
Color:
White
Yellow
Size:
15-90 (μm)
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Introduction

The products with very high purity. Powders are spheroidal with excellent flowability, chemical homogeneity, structural stability. Coating have excellent thermal shock and insulating features. It is used primarily on turbine combustion liners.

 

Plasma spraying (TBC) belongs to the thermal spraying technology.Current global zirconia powder is divided into two levels: high purity level (white) and regular grade (yellow), mainly used in aviation, aerospace, steel industry, automobile manufacturing, petrochemical, textile machinery, shipbuilding and other fields.The plasma spraying zirconia powder global annual consumption of more than 2000 tons.

 

Application field:

1. Used as the thermal barrier coatings for rockets and jet engine combustion chamber, gas turbine blade, the internal combustion engine combustion chamber.
2.Used as coatings with the high temperature resistant and particle erosion resistant  for missile nose cones and the rocket nozzle.
3.Used for gas turbine impeller blade.

4.Used as the coatings in brazing and heat treatment fixture with the feature of anti-thermal shock and prevent caking.

Parameter

 

                                      

   Technical Indicators

 

        

 Grade   

                  

        Data

 High purity

  ZrO2+HfO2 : 90%

  Y2O3 : 7~9%

  SiO2 : 0.1%

  Monoclinic : 2%  

  Color : White

 Regular

  ZrO2+HfO2 : 90%  

  Y2O3 : 7~9%

 SiO2 : 0.2%

  Monoclinic : 5%  

 Color : Yellow

 

 

 

Particle Size Sistribution

 

 

 Min

 Max

 D10

 25um

 31um

 D50

 48um

 57um

 D90

 85um

 99um


 

 

Spraying Parameters 

 

 Plasma Gas Ar (SLPM)

                       40                       

 Plasma Gas H2 (SLPM)

 9

 Current (A)

 580

 Spray Distance (mm)

 120


 

 

Coating Properties 

 

 Hardness

          ca. 1400 HV 0,3

 Applicable Temp.(High Purity Grade)

                 1.300

 Applicable Temp.(Standard Grade)

                 1.100

 

 

Safety Instructions

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