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000279666 020__ $$a978-3-95806-139-2
000279666 037__ $$aFZJ-2015-07548
000279666 041__ $$aGerman
000279666 1001_ $$0P:(DE-Juel1)145981$$aBöhm, Anna$$b0$$eCorresponding author$$gfemale$$ufzj
000279666 245__ $$aThermoschockverhalten und temperaturabhängige Eigenschaften kohlenstoffarmer und -freier Feuerfestwerkstoffe$$f- 2015-05-31
000279666 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2016
000279666 300__ $$aVI, 153 S.
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000279666 3367_ $$2ORCID$$aDISSERTATION
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000279666 3367_ $$02$$2EndNote$$aThesis
000279666 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1464858394_30168
000279666 3367_ $$2DRIVER$$adoctoralThesis
000279666 4900_ $$aSchriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment$$v317
000279666 502__ $$aRWTH Aachen, Diss., 2015$$bDr.$$cRWTH Aachen$$d2015
000279666 520__ $$aNovel developed refractories with reduced carbon content for application in steel industry were investigated regarding to their thermo-mechanical behaviour. Another major part of this work was focused on the development and trial of new/optimization of established test methods (thermal shock by heating via electron beam and wedge splitting test). Al$_{2}$O$_{3}$ with the addition of 2.5 wt.% ZrO$_{2}$ and TiO$_{2}$ respectively (AZT) leads to animproved thermal shock behaviour compared to pure Al$_{2}$O$_{3}$ materials. Temperature dependent investigations revealed a thermal hysteresis of elastic modulus, shear modulus, Poisson's ratio and thermal expansion, accompanied by a phase transformation of ZrO$_{2}$ (monoclinic $\rightarrow$ tetragonal). High temperature (800 - 1000 $^{\circ}$C) wedge splitting tests were performed with optical notch opening determination for Al$_{2}$O$_{3}$ and AZT. The phase transformation of ZrO$_{2}$ leads to a more brittle behaviour of AZT at 800 $^{\circ}$C compared to room temperature. Different loading configurations for the wedge splitting test were tested using Alumina and Al$_{2}$O$_{3}$-C materials in order to apply the test method on small specimen geometries (40 X 40 X 20 mm$^{3}$). Promising results were obtained from a simple approach using two rollers into a grooved sample. With this method, it was possible to determine a constant (sample material independent) friction coefficent ($\mu$ = 0,13). The results showed a good agreement with experimental data obtained from compact tension tests. Thermal shock tests by heating using the electron beam facility JUDITH 1 allowed the application of a well distributed loading pattern on MgO-C Materials. Temperatures up to 1400 $^{\circ}$C at the surface were achieved. The main damage was observed within the MgO grains.
000279666 536__ $$0G:(DE-HGF)POF3-111$$a111 - Efficient and Flexible Power Plants (POF3-111)$$cPOF3-111$$fPOF III$$x0
000279666 536__ $$0G:(DE-Juel1)HITEC-20170406$$aHITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406)$$cHITEC-20170406$$x1
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000279666 9141_ $$y2015
000279666 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)145981$$aForschungszentrum Jülich GmbH$$b0$$kFZJ
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