A Design Perspective on Thermal Barrier Coatings

Soechting, F. O.

doi:10.1361/105996399770350179

Cited by 34 publications

(15 citation statements)

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“…The development of the gas turbine for propulsion and power generation is pushing the evolution of new materials and processes to allow for greater performance and efficiency [1]. In the hot section of the engine, demands for higher operating temperatures have led to the need for thermal protection for both rotating and non-rotating parts [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…In the hot section of the engine, demands for higher operating temperatures have led to the need for thermal protection for both rotating and non-rotating parts [1,2]. The thermal barrier coating (TBC) allows the operating temperature of the engine to be increased without increasing the operating temperature for the metallic components [1,3].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Conductivity Analysis and Lifetime Testing of Suspension Plasma-Sprayed Thermal Barrier Coatings

Curry

VanEvery²,

Snyder³

et al. 2014

Coatings

115

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Suspension plasma spraying (SPS) has become an interesting method for the production of thermal barrier coatings for gas turbine components. The development of the SPS process has led to structures with segmented vertical cracks or column-like structures that can imitate strain-tolerant air plasma spraying (APS) or electron beam physical vapor deposition (EB-PVD) coatings. Additionally, SPS coatings can have lower thermal conductivity than EB-PVD coatings, while also being easier to produce. The combination of similar or improved properties with a potential for lower production costs makes SPS of great interest to the gas turbine industry. This study compares a number of SPS thermal barrier coatings (TBCs) with vertical cracks or column-like structures with the reference of segmented APS coatings. The primary focus has been on lifetime testing of these new coating systems. Samples were tested in thermo-cyclic fatigue at temperatures of 1100 °C for 1 h cycles. Additional testing was performed to assess thermal shock performance and erosion resistance. Thermal conductivity was also assessed for samples in their as-sprayed state, and the microstructures were investigated using SEM.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity Analysis and Lifetime Testing of Suspension Plasma-Sprayed Thermal Barrier Coatings

Curry

VanEvery²,

Snyder³

et al. 2014

Coatings

115

View full text Add to dashboard Cite

show abstract

“…Gas detonation sprayed (GDS) intermetallic coatings composed of the phases in the Fe-Al system are characterized by a unique sandwich microstructure of layers which are responsible for high degree of hardness, thermal stability, high corrosion resistance, good adhesion and very good tribological properties of the GDS modified surface layer of engineering components [1][2][3][4][5][6][7][8][9][10][11][12]. It has already been shown [13][14][15] that the Fe-Al intermetallic compounds obtained by self-decomposition are extremely useful for GDS spraying on construction steel.…”

Section: Introductionmentioning

confidence: 99%

Gas detonation spray forming of Fe–Al coatings in the presence of interlayer

Senderowski

Bojar

2008

Surface and Coatings Technology

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“…However, these alloys are needed to be cooled during the operation of the turbine engine and the practical temperature limits for metallic alloys remain below 1100 o C. But in this situation, the elevation of turbine inlet temperature will be quite difficult and expansive. Because of these given limitations, there is not any important improvements on nickel based superalloys since 1985 (Soetching, 1995).…”

Section: Superalloys and Their Limitations At Elevated Temperaturesmentioning

confidence: 99%