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000012533 0247_ $$2DOI$$a10.1007/s11666-010-9549-1
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000012533 084__ $$2WoS$$aMaterials Science, Coatings & Films
000012533 1001_ $$0P:(DE-Juel1)VDB77583$$aHospach, A.$$b0$$uFZJ
000012533 245__ $$aColumnar-Structured Thermal Barrier Coatings (TBCs) by Thin Film Low Pressure Plasma Spraying (LPPS-TF)
000012533 260__ $$aBoston, Mass.$$bSpringer$$c2011
000012533 300__ $$a116 - 120
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000012533 440_0 $$012482$$aJournal of Thermal Spray Technology$$v20$$x1059-9630
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000012533 520__ $$aThe very low-pressure plasma Spray (VLPPS) process has been developed with the aim of depositing uniform and thin coatings with coverage of a large area by plasma spraying. At typical pressures of 100-200 Pa, the characteristics of the plasma jet change compared to conventional low-pressure plasma-spraying processes (LPPS) operating at 5-20 kPa. The combination of plasma spraying at low pressures with enhanced electrical input power has led to the development of the LPPS-TF process (TF = thin film). At appropriate parameters, it is possible to evaporate the powder feedstock material providing advanced microstructures of the deposits. This technique offers new possibilities for the manufacturing of thermal barrier coatings (TBCs). Besides the material composition, the microstructure is an important key to reduce thermal conductivity and to increase strain tolerance. In this regard, columnar microstructures deposited from the vapor phase show considerable advantages. Therefore, physical vapor deposition by electron beam evaporation (EB-PVD) is applied to achieve such columnar-structured TBCs. However, the deposition rate is low, and the line-of-sight nature of the process involves specific restrictions. In this article, the deposition of TBCs by the LPPS-TF process is shown. How the evaporation of the feedstock powder could be improved and to what extent the deposition rates could be increased were investigated.
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000012533 65320 $$2Author$$aEB-PVD
000012533 65320 $$2Author$$aLPPS
000012533 65320 $$2Author$$aMCrAlY
000012533 65320 $$2Author$$aphysical vapor deposition
000012533 65320 $$2Author$$athermal cycling
000012533 65320 $$2Author$$aVLPPS
000012533 65320 $$2Author$$ayttria-stabilized zirconia (YSZ)
000012533 7001_ $$0P:(DE-Juel1)129633$$aMauer, G.$$b1$$uFZJ
000012533 7001_ $$0P:(DE-Juel1)129670$$aVaßen, R.$$b2$$uFZJ
000012533 7001_ $$0P:(DE-Juel1)129666$$aStöver, D.$$b3$$uFZJ
000012533 773__ $$0PERI:(DE-600)2047715-6$$a10.1007/s11666-010-9549-1$$gVol. 20, p. 116 - 120$$p116 - 120$$q20<116 - 120$$tJournal of thermal spray technology$$v20$$x1059-9630$$y2011
000012533 8567_ $$uhttp://dx.doi.org/10.1007/s11666-010-9549-1
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000012533 9141_ $$y2011
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