Microstructure, composition and property relationships of plasma-sprayed thermal barrier coatings

Taylor, R. E.; Brandon, J.; Morrell, Paul

doi:10.1016/0257-8972(92)90055-f

Cited by 161 publications

(52 citation statements)

References 23 publications

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“…HVOF spray systems work at atmospheric pressure and consequently the investment and operation costs are much lower [11][12][13][14][15]. Recent researches showed the potentiality of HVOF spraying system compared to VPS technique [16].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the isothermal oxidation resistance of CoNiCrAlY coating sprayed by High Velocity Oxygen Fuel

Fossati

Ferdinando

Lavacchi

et al. 2010

Surface and Coatings Technology

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Two CoNiCrAlY powders with similar chemical composition and granulometry, but with different starting reactivity toward oxygen, were sprayed by High Velocity Oxygen Fuel (HVOF) onto Hastelloy X superalloy substrates obtaining coatings of comparable thickness. After spraying, samples were maintained at 1000°C in air for different test periods up to 3000 h. Morphological, microstructural, compositional and electrochemical analyses were performed onto the powders and the coated samples in order to assess the high temperature oxidation resistance provided by the different powders. The powder with higher starting reactivity toward oxygen sensibly improves the oxidation resistance of the coated samples by producing thinner and more adherent thermally grown oxide layers in comparison with the other powders.

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Section: Introductionmentioning

confidence: 99%

Improvement of the isothermal oxidation resistance of CoNiCrAlY coating sprayed by High Velocity Oxygen Fuel

Fossati

Ferdinando

Lavacchi

et al. 2010

Surface and Coatings Technology

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“…The tetragonal-monoclinic transition is suppressed by adding cubic oxides in small amounts (ϳ8.5%͒ to zirconia. 8,9 Still, TBC's are prone to thermal cycling fatigue, due to slightly unequal thermal expansion of the metal and the TBC, which causes the TBC to spall within the projected lifetime of the engine, as a result of thermallyinduced stresses. 3 Other contributing mechanisms to the spallation are oxidation of the TBC/metal interface, enhanced by the relatively high oxygen anion mobility in zirconia and interface segregation of other species, activated at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Adhesion of ultrathin ZrO2(111) films on Ni(111) from first principles

Christensen¹,

Carter

2001

The Journal of Chemical Physics

119

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We have studied the ZrO 2 ͑111͒/Ni͑111͒ interface using the ultrasoft pseudopotential formalism within density functional theory. We find that ZrO 2 (111) adheres relatively strongly at the monolayer level but thicker ceramic films interact weakly with the Ni-substrate. We argue that the cohesion changes character from dominantly image charge interactions for thick ceramic films to more covalent for monolayer ZrO 2 (111) films. We provide an analysis of energetic, structural and electronic aspects of the ZrO 2 /Ni interface as a function of the thickness of the oxide layer. We also address the role of the exchange-correlation density functional parameterization for modeling the oxide and metal/oxide interface and discuss the sensitivity of the supercell approximation for metal/oxide interface properties.

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“…The tetragonal-monoclinic transition is suppressed by adding cubic oxides in small amounts (ϳ8.5%) to zirconia. 8,9 Still, TBC's are prone to thermal cycling fatigue, due to unequal thermal expansion of the metal and the TBC, which causes the TBC to spall as a result of thermally induced stresses. 3 Another contributing mechanism to the spallation is oxidation of the TBC/metal interface.…”

Section: Introductionmentioning

confidence: 99%

First-principles characterization of a heteroceramic interface:ZrO2(001)deposited on anα−
Christensen
¹
,
Carter
²

2000
Phys. Rev. B
66
3
29
1
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Microstructure, composition and property relationships of plasma-sprayed thermal barrier coatings

Cited by 161 publications

References 23 publications

Improvement of the isothermal oxidation resistance of CoNiCrAlY coating sprayed by High Velocity Oxygen Fuel

Improvement of the isothermal oxidation resistance of CoNiCrAlY coating sprayed by High Velocity Oxygen Fuel

Adhesion of ultrathin ZrO2(111) films on Ni(111) from first principles

First-principles characterization of a heteroceramic interface:ZrO2(001)deposited on anα−
Christensen
¹
,
Carter
²

2000
Phys. Rev. B
66
3
29
1
View full text Add to dashboard Cite

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Microstructure, composition and property relationships of plasma-sprayed thermal barrier coatings

Cited by 161 publications

References 23 publications

Improvement of the isothermal oxidation resistance of CoNiCrAlY coating sprayed by High Velocity Oxygen Fuel

Improvement of the isothermal oxidation resistance of CoNiCrAlY coating sprayed by High Velocity Oxygen Fuel

Adhesion of ultrathin ZrO2(111) films on Ni(111) from first principles

First-principles characterization of a heteroceramic interface:ZrO2(001)deposited on anα−Christensen1, Carter2 2000Phys. Rev. B663291View full textAdd to dashboardCite

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First-principles characterization of a heteroceramic interface:ZrO2(001)deposited on anα−
Christensen
¹
,
Carter
²

2000
Phys. Rev. B
66
3
29
1
View full text Add to dashboard Cite