000063189 001__ 63189
000063189 005__ 20171117104914.0
000063189 0247_ $$2doi$$a10.1088/1742-6596/549/1/012017
000063189 0248_ $$2sideral$$a100194
000063189 037__ $$aART-2014-100194
000063189 041__ $$aeng
000063189 100__ $$aRecarte, V.
000063189 245__ $$aStudy of the transformation sequence on a high temperature martensitic transformation Ni-Mn-Ga-Co shape memory alloy
000063189 260__ $$c2014
000063189 5060_ $$aAccess copy available to the general public$$fUnrestricted
000063189 5203_ $$aNi-Mn-Ga alloys show the highest magnetic-field-induced strain among ferromagnetic shape memory alloys. A great effort is being done in this alloy system to increase the application temperature range. In this sense, the addition of small amounts of Cobalt to NiMnGa alloys has been proved to increase the MT temperatures through the increase of the electron per atom relation (e/a). In this work, the analysis of the crystal structure of the present phases and the phase transformations has been performed on a Ni-Mn-Ga-Co alloy by neutron diffraction measurements from 10 K to 673 K. The study has been completed by means of calorimetric and magnetic measurements. On cooling the alloy undergoes a martensitic transformation from a face centered cubic structure to a nonmodulated tetragonal martensite. The appearance of intermartensite transformations can be disregarded in the whole temperature range below the martensitic transformation. However, a jump in the unit-cell volume of the tetragonal martensite has been observed at 325 K. Since this temperature is close to the Curie temperature of the alloy both, the structural and magnetic contributions are taken into account to explain the results.
000063189 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2009-07928$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2012-37923-C02-01
000063189 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000063189 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000063189 700__ $$aPérez-Landazábal, J. I.
000063189 700__ $$aSánchez-Alarcos, V.
000063189 700__ $$0(orcid)0000-0002-8505-5232$$aRodríguez-Velamazán, J. A.
000063189 773__ $$g549, 1 (2014), 012017 [5 pp]$$pJ. Phys.: Conf. Ser.$$tJournal of physics. Conference series$$x1742-6588
000063189 8564_ $$s619887$$uhttps://zaguan.unizar.es/record/63189/files/texto_completo.pdf$$yVersión publicada
000063189 8564_ $$s96665$$uhttps://zaguan.unizar.es/record/63189/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000063189 909CO $$ooai:zaguan.unizar.es:63189$$particulos$$pdriver
000063189 951__ $$a2017-11-16-10:49:26
000063189 980__ $$aARTICLE