Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
73 (1993), S. 1521-1527
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
A nonequilibrium phase transformation in stoichiometric Ni3Sn2 during mechanical impact in a high-energy ball mill was monitored by the measurements of high-field magnetization, ac susceptibility, and x-ray diffraction. X-ray diffraction showed that the material transformed from the low-temperature Ni3Sn2 phase with Ni3Sn2-type orthorhombic structure to the high-temperature Ni3Sn2 phase with partially filled-up B8-type structure after 40 h of milling. Quenching was used to confirm the phase transformation during ball milling. The magnetization of the ball-milled high-temperature phase (metastable) is much higher than that of the quenched high-temperature phase, where both ball-milled and quenched high-temperature phases have higher magnetization than the low-temperature phase. The Curie temperature of our metastable high-temperature phase is quite close to that of the equilibrium phases (high- and low-temperature phases). The result is discussed in terms of atomic disordering induced by mechanical milling.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.353226
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