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Powder materials based on zirconium dioxide


CaO-stabilized ceramic powders ZrO2, (with not more than 0.3% of Fe2O3). Cermet mechanical powder mixtures based on stabilized ZrO2, and containing (20-50) volume percent of NiCr. Fluidity of powder materials is not more than 67 seconds.


Source materials for plasma sputtering of erosion-resistant thermal protective coatings (ERTPC).


Thermal erosive protection of heat-stressed elements of cooled combustion chambers of liquid propellant sustainer.

Technical characteristics of ERTPC:

  • open porosity no more than 15 %,
  • apparent density 4.3-5.0 g/cm3,
  • tear-off strength not less than 4 MPa on steels and nickel alloys,
  • thermal durability not less than 8 thermo cycles on copper alloys and not less than 10 thermo cycles on steels and nickel alloys;
  • working temperature not less than 1700 ˚К.


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