About: Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S0925838811004294
Description	Transformation characteristics in the single crystal of Ni(3)Ta shape memory alloy were studied by the dilatation measurement in the temperature range of room temperature up to 500 degrees C. The transformation strains were positive in the direction of the b-axes and the c-axes and negative in the direction of a-axes. The martensitic phase transformation takes place without volume change of the sample. Thermal diffusivity of the single crystal measured in two directions b-axes and a-axes was higher than that for polycrystalline material. The latent heat of the martensitic phase transformation influences the temperature distribution inside sample. Absorption (releasing) of the latent heat during heating (cooling) leads to cooling (heating) of the sample in place where the phase transformation takes place. This decrease (increase) of the temperature in the interface between both phases leads to stopping of the phase transformation. This effect is visible on the temperature dependence of the dilatation characteristics. The martensitic phase transformation in Ni(3)Ta single crystal took place with hysteresis of 30 degrees C. This hysteresis changes depending on the thermal history of the sample. Hysteretic behaviour of the Ni3Ta single crystal was analyzed and compared with behaviour of Ni(53.6)Mn(27.1)Ga(19.3) alloy where no hysteresis was found. (C) 2011 Elsevier B.V. All rights reserved. Transformation characteristics in the single crystal of Ni(3)Ta shape memory alloy were studied by the dilatation measurement in the temperature range of room temperature up to 500 degrees C. The transformation strains were positive in the direction of the b-axes and the c-axes and negative in the direction of a-axes. The martensitic phase transformation takes place without volume change of the sample. Thermal diffusivity of the single crystal measured in two directions b-axes and a-axes was higher than that for polycrystalline material. The latent heat of the martensitic phase transformation influences the temperature distribution inside sample. Absorption (releasing) of the latent heat during heating (cooling) leads to cooling (heating) of the sample in place where the phase transformation takes place. This decrease (increase) of the temperature in the interface between both phases leads to stopping of the phase transformation. This effect is visible on the temperature dependence of the dilatation characteristics. The martensitic phase transformation in Ni(3)Ta single crystal took place with hysteresis of 30 degrees C. This hysteresis changes depending on the thermal history of the sample. Hysteretic behaviour of the Ni3Ta single crystal was analyzed and compared with behaviour of Ni(53.6)Mn(27.1)Ga(19.3) alloy where no hysteresis was found. (C) 2011 Elsevier B.V. All rights reserved. (en)
Title	Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal (en)
skos:prefLabel	Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal (en)
skos:notation	RIV/00216208:11320/11:10103801!RIV12-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Pospíšil, Jiří Rudajevová, Alexandra
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	204330
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10103801
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	crystal; single; Ni3Ta; strain; transformation; martensitic; alloy; history; thermal; heat; latent; anisotropy; Influence (en)
http://linked.open.../riv/klicoveSlovo	strain alloy Influence Ni3Ta latent martensitic single anisotropy history transformation thermal heat crystal
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[BC024481BDF8]
http://linked.open...i/riv/nazevZdroje	Journal of Alloys and Compounds
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	509
http://linked.open...iv/tvurceVysledku	Pospíšil, Jiří Rudajevová, Alexandra
http://linked.open...ain/vavai/riv/wos	000289374300012
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0925-8388
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jallcom.2011.02.095
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal Influence of anisotropy, the latent heat and the thermal history of alloy on martensitic transformation strain in Ni(3)Ta single crystal

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