2012
DOI: 10.1016/j.surfcoat.2011.09.076
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New functionally graded thermal barrier coating system based on LaMgAl11O19/YSZ prepared by air plasma spraying

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Cited by 93 publications
(29 citation statements)
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“…A second possibility that avoids this problem consists in gradually changing the composition along the coating thickness. This design is known as functionally-graded materials (FGM) and it is achieved depositing layers with different compositional ratios [11,12].…”
Section: Introductionmentioning
confidence: 99%
“…A second possibility that avoids this problem consists in gradually changing the composition along the coating thickness. This design is known as functionally-graded materials (FGM) and it is achieved depositing layers with different compositional ratios [11,12].…”
Section: Introductionmentioning
confidence: 99%
“…These results indicate that LaMA is a good TBC candidate material for higher temperature applications. However, as the results reported in previous studies [22,30,31], the plasma-sprayed LaMA coating had a large amount of amorphous phase due to the rapid cooling in spraying process. During high-temperature service, hot corrosion and crystallization of the LaMA coating would occur at the same time which would play important roles in the service performance of the LaMA coating as a new TBC for gas turbine applications.…”
Section: Introductionmentioning
confidence: 52%
“…These crystal chemistry characteristics impart the LaMA oxide with very good sintering resistance. [25][26][27][28] Our previous studies have already shown that plasma sprayed LaMA coating exhibited much better thermal cycling performance than YSZ and other new TBC candidate materials [29,30]. These results indicate that LaMA is a good TBC candidate material for higher temperature applications.…”
Section: Introductionmentioning
confidence: 85%
“…Previous works have addressed this type of coatings to optimise the mechanical and thermal properties of the TBC. Thus, this functionally-graded coatings display high lifetime because the generation of tensions during the thermal fatigue diminishes due to the gradual microstructure change through the coating [14][15][16][17][18][19]. Once the improvement of multilayer and functionally-graded coatings have been demonstrated in terms of mechanical and thermal behaviour, the objective of the present work was the evaluation of the chemical attack resistance of this type of coatings.…”
Section: Introductionmentioning
confidence: 99%