Sökning: L773:0885 7156 OR L773:1945 7413 >
Neutron diffraction...
Neutron diffraction study on crystal structure and phase transformation in Ni-Mn-Ga ferromagnetic shape memory alloys
- Artikel/kapitelEngelska2007
Förlag, utgivningsår, omfång ...
-
2012-03-01
-
Cambridge University Press (CUP),2007
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:uu-113444
-
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-113444URI
-
https://doi.org/10.1154/1.2790932DOI
-
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-55266URI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
authorCount :6
-
Crystal structure and phase transformation behaviors in two Ni-Mn-Ga ferromagnetic shape memory alloys (FSMAs) with compositions of Ni48Mn30Ga22 and Ni53Mn25Ga22 (at. %) as a function of temperature were investigated by in situ neutron diffraction experiments. Neutron diffraction technique proves to be highly efficient in characterizing structural transformation in Ni-Mn-Ga FSMAs, which consist of nearby elements in the periodic table. Our neutron results show that Ni48Mn30Ga22 has a cubic, L-21 Heusler structure from 373 to 293 K. Its crystal structure changes into a seven-layered orthorhombic martensitic structure when cooled to 243 K, and no further transformation is observed upon cooling to 19 K. Neutron diffraction results also show that Ni53Mn25Ga22 has a tetragonal 14/mmm martensitic structure from 20 to 403 K. A pre-transformation around room temperature is observed from an abrupt jump in unit-cell volume of Ni53Mn25Ga22, which corresponds with an endothermic peak detected in a heated DSC curve.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Wang, Y. D.
(författare)
-
Xu, J. Z.
(författare)
-
Zuo, L.
(författare)
-
Zetterstroem, P.Stockholms universitet,Avdelningen för strukturkemi
(författare)
-
Delaplane, R.Uppsala universitet,Neutronforskningslaboratoriet i Studsvik
(författare)
-
Stockholms universitetAvdelningen för strukturkemi
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Powder Diffraction: Cambridge University Press (CUP)22:4, s. 307-3110885-71561945-7413
Internetlänk
Hitta via bibliotek
Till lärosätets databas