Thermal cycling and interface bonding performance of single phase (Ni,Pt)Al coating with and without pure metastable tetragonal phase 4YSZ

Yu, Cong; Xie, Hanqing; Li, Shuai; Jiang, Chengyang; Zhang, Bao; Zhang, Wei; Zhang, Lei; Pu, Wanqi; Zhu, Shenglong; Wang, Fuhui

doi:10.1016/j.apsusc.2023.156326

Cited by 7 publications

(1 citation statement)

References 44 publications

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“…Thermal barrier coatings (TBCs) were developed as a kind of thermal protection technology for some ceramic materials, with a high temperature stability, a low thermal conductivity, a high thermal expansion coefficient and corrosion resistance, and were designed to bind with metal substrates to form a coating to prolong the working time of metal substrates [1][2][3][4][5][6][7]. TBCs are mainly made from a ceramic top layer, a NiCoCrAlY bond layer and a superalloy substrate [8]. The most popular ceramic top layer material is yttria-stabilized zirconia (YSZ), which cannot work for a long time above 1200 • C as it will fail due to a phase transformation and oxidation of the bonding layer [3,9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Top Ceramic Layers with an Ultrathin Dense Layer on the Thermal–Physical Properties of Thermal Barrier Coatings

Ai,

Wang,

Yang

et al. 2023

Coatings

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Thermal barrier coatings have been used to protect superalloys under extremely harsh conditions. The durability of TBCs with a NiCoCrAlY bond layer prepared via the air plasma spray process and an ultrathin dense layer prepared via magnetron sputtering was investigated under different corrosion conditions. This paper discusses the corrosion resistance improvement mechanism of TBCs with a dense layer produced by magnetron sputtering under corrosion conditions with environmental contaminants such as calcium–magnesium–aluminum–silicon oxide systems (CMAS) at 1300 °C and NaCl-Na2SO4-V2O5 (NV) at 900 °C. The corrosion results show that CMAS will react with the stabilizers of zirconium oxide, which will change the rate of the phase transition, as determined via X-ray diffraction tests. A thermal ablation test verified that TBCs with a dense layer have a better corrosion resistance and better thermal insulation properties. All results show that preparing TBCs with a dense layer via the magnetron sputtering method will be an efficient method to improve TBCs’ properties at high temperatures in the future.

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