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Vaßen, Robert; Simwonis, D.; Stöver, D.

doi:10.1023/a:1004849322160

Cited by 96 publications

(79 citation statements)

References 7 publications

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“…To remedy this shortcoming, the candidate materials were tried as complementary topcoat for YSZ in double layer systems. Similar studies previously conducted have proven that this concept is indeed feasible [7,8,9]. Results of our study on FGM TBCs cycled at extremely high temperatures are presented in this paper.…”

Section: Introductionsupporting

confidence: 79%

Functionally Graded Thermal Barrier Coatings with Improved Reflectivity and High-Temperature Capability

Vaßen

Kaßner

Stuke

et al. 2009

MSF

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Conventional thermal barrier coating (TBC) systems consist of a duplex structure with a metallic bondcoat and a ceramic, heat isolative topcoat. In modern TBCs the ceramic topcoat is further divided into layers with different functions. One example is the double layer system in which conventional yttria stabilized zirconia (YSZ) is used as bottom and new materials as pyrochlores or perovskites are used as topcoat layers. These systems demonstrated an improved temperature capability compared to standard YSZ. Examples of such systems will be shown. In modern gas turbines the increased temperatures and gas pressures lead to an increased fraction of radiative heat flow. Coatings with increased reflectivity can be used to avoid the direct heating of the metallic substrates by this radiation. An effective method to produce such coatings is suspension plasma spraying. These reflective coatings are deposited on top of the TBC system and will lead to a further grading and improved performance of the coating.

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Section: Introductionsupporting

confidence: 79%

Functionally Graded Thermal Barrier Coatings with Improved Reflectivity and High-Temperature Capability

Vaßen

Kaßner

Stuke

et al. 2009

MSF

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show abstract

“…• C. As a comparison, the polarization resistance of anode with pure LSCM was 0.26 cm 2 in wet H 2 and 0.87 cm 2 in wet CH 4 at 900 • C, respectively. 5 It is worth mentioning that the anode polarization resistance was measured using a three-electrode configuration in the latter case.…”

Section: Resultsmentioning

confidence: 91%

“…In a recent study, 6 a 300 μm-thick La 0.8 Sr 0.2 Ga 0.83 Mg 0.17 O 3 (LSGM) electrolyte-supported cell with double perovskite Sr 2 MgMoO 6 anode showed the peak power density of 438 mW cm −2 at 800 • C in CH 4 . The cell performance reported in this study is very encouraging because the cell obtained high performance in relatively low temperatures.…”

Section: Resultsmentioning

confidence: 98%

“…1,2 In addition, the nickel based anodes also suffer from the volume instability induced by redox cycling 3 as well as nickel particle agglomerations due to high temperature and long-term operations. 4 To overcome these issues, nickel-free metal oxide anode materials have been investigated, such as La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3−δ (LSCM), 5 Sr 2 Mg 1−x Mn x MoO 6−δ (x = 0 to 1), 6 and doped (La, Sr)(Ti)O 3 . 7,8 Experimental results have demonstrated that such anode materials are effective in inhibiting carbon deposition or sulfur poisoning.…”

mentioning

confidence: 99%

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A Ceramic-Anode Supported Low Temperature Solid Oxide Fuel Cell

Ding¹,

Ge²,

Xue³

2012

Electrochem. Solid-State Lett.

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“…Previous studies by other researchers have been limited to individual phases, 1,[10][11][12] or involved specific treatments of the samples, 1,13,14 or the images. 15 The investigations displayed coarsening and rounding of the nickel particles upon exposure to reducing conditions.…”

mentioning

confidence: 99%