<div class="csl-bib-body">
<div class="csl-entry">Riedl-Tragenreif, H., Zauner, L., Bahr, A. A. I., Glechner, T., Hirle, A. V., Richter, S., Fuger, C., Hahn, R., Wojcik, T., Ramm, J., Hunold, O., Kolozsvári, S., & Polcik, P. (2024, January 31). <i>Next generation protective coating materials - From binary to quaternary transition metal diborides</i> [Conference Presentation]. 48th International Conference and Expo on Advanced Ceramics and Composites (ICACC 2024), Daytona Beach, United States of America (the). http://hdl.handle.net/20.500.12708/207971</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/207971
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dc.description.abstract
Transition metal diboride (TMB) coating materials are the subject of growing research interests. They are considered potential candidates in future industrial applications ranging from thermo-mechanical purposes in UHT environments to electrochemical needs. Exploring the phase space of novel TMBs poses specific challenges: (i) susceptible compositional and structural variety during physical vapor deposition (PVD), (ii) anisotropy in their mechanical properties as well as brittle nature, and (iii) formation of non-adherent and volatile oxide scales.
Within this talk, we want to address these specific challenges on a step-wise alloying concept from binary to quaternary group IV to VI transition metal diborides. The anisotropic nature and impact of B-rich tissue phases on the intrinsic fracture toughness of superhard binary TiB2±z and WB2±z are elaborated as a starting point. Subsequently, different alloying routes (e.g. TM-X-B2±z, TM-X-Si-B2±z) will be discussed to enhance the ductile character and oxidation resistance. Here, Si and disilicide alloying routes have been proven highly effective in providing long-term oxidation resistance up to 1200 °C (e.g. < 350 nm oxide scale after 10 h). To describe all these relations comprehensively, we correlated the synthesis parameters with structural and morphological evolution using XRD, HR-TEM, APT, ERDA, and micro-mechanical testing methods.
en
dc.description.sponsorship
Christian Doppler Forschungsgesells
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dc.language.iso
en
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dc.subject
UHTC
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dc.subject
Diborides
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dc.subject
Oxidation resistance
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dc.title
Next generation protective coating materials - From binary to quaternary transition metal diborides
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Oerlikon (Liechtenstein), Liechtenstein
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dc.contributor.affiliation
Oerlikon (Liechtenstein), Liechtenstein
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dc.contributor.affiliation
Plansee (Germany), Germany
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dc.contributor.affiliation
Plansee (Germany), Germany
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dc.relation.grantno
CDL-SEC
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dc.type.category
Conference Presentation
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tuw.publication.invited
invited
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tuw.project.title
Oberflächentechnik von hochbeanspruchten Präzisionskomponenten
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tuw.researchinfrastructure
Röntgenzentrum
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tuw.researchinfrastructure
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
