The effect of antiphase boundaries on the elastic properties of Ni–Mn–Ga austenite and premartensite

0396738 - ÚT 2014 RIV GB eng J - Článek v odborném periodiku
Seiner, Hanuš - Sedlák, Petr - Bodnárová, Lucie - Drahokoupil, Jan - Kopecký, Vít - Kopeček, Jaromír - Landa, Michal - Heczko, Oleg
The effect of antiphase boundaries on the elastic properties of Ni–Mn–Ga austenite and premartensite.
Journal of Physics-Condensed Matter. Roč. 25, č. 42 (2013), s. 1-10. ISSN 0953-8984. E-ISSN 1361-648X
Grant CEP: GA ČR(CZ) GAP107/11/0391; GA ČR(CZ) GA101/09/0702
Grant ostatní: AV ČR(CZ) M100761203
Program: M
Výzkumný záměr: CEZ:AV0Z20760514
Institucionální podpora: RVO:61388998 ; RVO:68378271
Klíčová slova: ferromagnetic shape memory alloys * resonant ultrasound spectroscopy * premartensitic phenomena
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus; BM - Fyzika pevných látek a magnetismus (FZU-D)
Impakt faktor: 2.223, rok: 2013
http://iopscience.iop.org/0953-8984/25/42/425402/article

The evolution of elastic properties with temperature and magnetic field was studied in two differently heat-treated single crystals of the Ni–Mn–Ga magnetic shape memory alloy using resonant ultrasound spectroscopy. Quenching and slow furnace cooling were used to obtain different densities of antiphase boundaries. We found that the crystals exhibited pronounced differences in the c' elastic coefficient and related shear damping in high-temperature ferromagnetic phases (austenite and premartensite).
Trvalý link: http://hdl.handle.net/11104/0224591