Abstract
In this work the spark plasma sintering (SPS) technique was used to forming a functionally gradient thermal barrier material based on nickel aluminide (VKNA) and zirconium oxide (YSZ). Layer-by-layer powders of VKNA / mixtures VKNA + 15 (30) % YSZ / YSZ were consolidated in a graphite matrix at 1070°C in a vacuum atmosphere for 5 minutes and at a pressure of 30 MPa. It is determined that the sintered material has good adhesion of layers, there are no interlayer boundaries. To check the functionality of the material, thermocyclic tests were carried out at 1100°C in the air. The results showed that the material containing the sublayer VKNA + 30 % YSZ has better heat resistance. Ill. 5. Ref. 28. Tab. 2.
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