About: Influence of metallic dopants on fracture behaviour of TiB2 based cermets

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About: Influence of metallic dopants on fracture behaviour of TiB2 based cermets Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Titanium diboride (TiB2) - metal composites were prepared by hot-pressing of the TiB2 - Ni and Ta doped TiB2-Ni powders. The obvious limitation of pure TiB2 is the bad sinterability, exaggerated grain growth at temperatures exceeded 2000°C needed for the densification and brittleness. There is only limited number of approaches how to improve fracture resistance. The method used in this work is based on doping the basic microstructure by above mentioned metals. The positive influence of dopants on the microstructure and fracture behaviour was demonstrated by means of mechanical properties and fractographic analysis. The right selection of dopants led to the refinement of microstructure resulted in the increase of flexural strength up to the level of 700 MPa and fracture toughness of 5.0 MPa.m1/2. Titanium diboride (TiB2) - metal composites were prepared by hot-pressing of the TiB2 - Ni and Ta doped TiB2-Ni powders. The obvious limitation of pure TiB2 is the bad sinterability, exaggerated grain growth at temperatures exceeded 2000°C needed for the densification and brittleness. There is only limited number of approaches how to improve fracture resistance. The method used in this work is based on doping the basic microstructure by above mentioned metals. The positive influence of dopants on the microstructure and fracture behaviour was demonstrated by means of mechanical properties and fractographic analysis. The right selection of dopants led to the refinement of microstructure resulted in the increase of flexural strength up to the level of 700 MPa and fracture toughness of 5.0 MPa.m1/2. (en)
Title	Influence of metallic dopants on fracture behaviour of TiB2 based cermets Influence of metallic dopants on fracture behaviour of TiB2 based cermets (en)
skos:prefLabel	Influence of metallic dopants on fracture behaviour of TiB2 based cermets Influence of metallic dopants on fracture behaviour of TiB2 based cermets (en)
skos:notation	RIV/68081723:_____/13:00421219!RIV14-MSM-68081723
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0068), P(GAP108/11/1644)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Chlup, Zdeněk Halasová, Martina
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	79839
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/13:00421219
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hot pressing; mechanical alloying; mechanical milling; bending test; toughness; cermets (en)
http://linked.open.../riv/klicoveSlovo	mechanical alloying hot pressing cermets mechanical milling toughness bending test
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[675C7272BF89]
http://linked.open...i/riv/nazevZdroje	Acta Metallurgica Slovaca Conference
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Central european institute of technology Fracture mechanics characteristics of the interface of low toughness materials
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	3
http://linked.open...iv/tvurceVysledku	Chlup, Zdeněk Halasová, Martina Bača, L. Šajgalík, P.
issn	1338-1660
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.12776/amsc.v3i0.112

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