<div class="csl-bib-body">
<div class="csl-entry">Schmid, B., Kolozsvári, S., & Mayrhofer, P. H. (2022, November 9). <i>Super Hard High Temperature TaC-Based Superlattice Protective Coatings Prepared by Magnetron Sputtering</i> [Conference Presentation]. AVS 68th International Symposium and Exhibition, Pittsburgh, United States of America (the). http://hdl.handle.net/20.500.12708/153187</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/153187
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dc.description.abstract
Transition metal carbides belong to ultra-high temperature ceramics (UHTC) and are particularly valued for their high thermal and mechanical stability as well as melting points of even above 4000 °C. Therefore, those materials are especially interesting for the application as protective coatings. However, a considerable limitation of these materials is their high inherent brittleness. Inspired by the success of nanolayered superlattice architecture—shown to enhance both hardness and toughness of transition metal nitrides like TiN/CrN or TiN/WN—we developed superlattice films based on TaC. These combinations are motivated by ab initio density functional theory calculations exhibiting large and small shear modulus and lattice parameter misfits. Our coatings are prepared via non-reactive DC and pulsed DC magnetron sputtering using binary carbide compound targets. In our study, we want to compare TaC-based superlattice systems and investigate the influence of the superlattice architecture on material characteristics like mechanical, thermal and electrical properties. Apart from nanoindentation and micromechanical cantilever testing for hardness and fracture toughness, material stability at elevated temperatures as well as thermoelectrical properties are being characterised.
en
dc.language.iso
en
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dc.subject
Titanium
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dc.subject
Carbide
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dc.subject
Super Hard
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dc.subject
Superlattice
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dc.subject
Thermoelectric
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dc.title
Super Hard High Temperature TaC-Based Superlattice Protective Coatings Prepared by Magnetron Sputtering
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Plansee (Germany), Germany
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dc.type.category
Conference Presentation
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tuw.researchinfrastructure
Röntgenzentrum
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tuw.researchinfrastructure
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
