Different structures of monoclinic martensitic phases in titanium nickelide

The detailed theoretical and experimental analysis has been undertaken to bring to light the true structure of the monoclinic phase in titanium nickelide (NiTi). Theoretical models for such a phase have been proposed to describe the experimental data. In addition to the well-known B19′ phase two mor...

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Bibliographic Details
Published inPhysica. B, Condensed matter Vol. 276; pp. 960 - 961
Main Authors Voronin, V.I, Naish, V.E, Novoselova, T.V, Pushin, V.G, Sagaradze, I.V
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2000
Subjects
Crystal structures
Diffraction
Phase transitions
Rietveld refinement
Crystal structures
Diffraction
Rietveld refinement
Phase transitions
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Summary:The detailed theoretical and experimental analysis has been undertaken to bring to light the true structure of the monoclinic phase in titanium nickelide (NiTi). Theoretical models for such a phase have been proposed to describe the experimental data. In addition to the well-known B19′ phase two more structures – new monoclinic M phase with Cm space group and triclinic phase with P1 space group – have been produced and analyzed in detail. Diffraction patterns have been obtained from different NiTi samples by using the neutron diffractometer IVV2 at different temperatures. From the refinement by DBWS-9411 program all these neutron patterns have been decoded successfully. The proposed new structures and stereotype B19′ one agree with correspondent experimental data and the agreement is quite good.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(99)01277-6