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Thermal Expansion of Yttria Stabilized Zirconia

Ochrombel, Rene (2008) Thermal Expansion of Yttria Stabilized Zirconia. In: MaterialsScience and Engineering. Materials Science and Engineering, 2008-09-01 - 2008-09-04, Nürnberg.

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Abstract

Today the state of the art material for Thermal Barrier Coatings (TBCs) is Electron Beam Physical Vapor Deposition (EB-PVD) Yttria Stabilized Zirconia (YSZ). As shown in the phase diagram by Scott different polymorphs of YSZ can be obtained by varying the Yttria content. Thereby monoclinic Stabilized Zirconia crystallises in space group P21/c, tetragonal Partially Stabilized Zirconia (PSZ) in space group P42/nmc and cubic Full Stabilized Zirconia (FSZ) in space group Fm3m. In most cases, far from any phase transitions, the linear approximation for thermal expansion turned out to be an adequate approach. In the monoclinic phase (crystal class 2/m) zirconia exhibits four independent tensor coefficients, whereas in the tetragonal (4/mmm) and the cubic phase (m3m) there are only two and one coefficients, respectively. It is remarkable, that in the literature only little is known about the tensor coefficients of thermal expansion in YSZ. Moreover, existing data sets of thermal expansion of the different zirconia polymorphs are partial inconsistent.

Item URL in elib:https://elib.dlr.de/56086/
Document Type:Conference or Workshop Item (Poster)
Title:Thermal Expansion of Yttria Stabilized Zirconia
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ochrombel, ReneUNSPECIFIEDUNSPECIFIED
Date:1 September 2008
Journal or Publication Title:MaterialsScience and Engineering
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:Thermal expansion, YSZ, Yttria Stabilized Zirconia
Event Title:Materials Science and Engineering
Event Location:Nürnberg
Event Type:international Conference
Event Dates:2008-09-01 - 2008-09-04
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Turbine Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research
Deposited By: Ochrombel, Dr.rer.nat. Rene
Deposited On:21 Nov 2008
Last Modified:31 Jul 2019 19:23

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