Martensitic polycrystalline Ni48.8Mn31.4Ga19.8 Heusler alloys, with a stacking period of 14 atomic planes at room temperature, were innovatively processed by combining high-energy ball milling and powder metallurgy. Bulk samples were mechanically coupled to a piezoelectric material in a parallel configuration, and the mechanical deformation of the studied system due to the twin's variant motion was investigated under overlapped static and oscillating magnetic fields. A reversible and high mechanical deformation is observed when the frequency of the oscillating magnetic field is tuned with the natural vibration frequency of this system. In this condition, a linear deformation as a function of the static magnetic field amplitude occurs in the ±4 kOe range, and a mechanical deformation of 2% at 10 kOe is observed.
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21 September 2014
Research Article|
September 17 2014
High strain in polycrystalline Ni48.8Mn31.4Ga19.8 Heusler alloys under overlapped static and oscillating magnetic fields
D. Z. Montanher;
D. Z. Montanher
1Department of Physics,
State University of Maringá
, Av. Colombo 5790, Maringá - PR 87020-900, Brazil
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J. R. D. Pereira;
J. R. D. Pereira
1Department of Physics,
State University of Maringá
, Av. Colombo 5790, Maringá - PR 87020-900, Brazil
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L. F. Cótica;
L. F. Cótica
1Department of Physics,
State University of Maringá
, Av. Colombo 5790, Maringá - PR 87020-900, Brazil
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R. A. M. Gotardo;
R. A. M. Gotardo
2
Technological Federal University of Paraná
, Av. Alberto Carazzai 1640, Cornélio Procópio - PR 86300-000, Brazil
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D. S. F. Viana;
D. S. F. Viana
3Department of Physics,
Federal University of São Carlos
, Rod. Washington Luiz, Km 235, São Carlos - SP 13565-905, Brazil
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D. Garcia;
D. Garcia
3Department of Physics,
Federal University of São Carlos
, Rod. Washington Luiz, Km 235, São Carlos - SP 13565-905, Brazil
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J. A. Eiras;
J. A. Eiras
3Department of Physics,
Federal University of São Carlos
, Rod. Washington Luiz, Km 235, São Carlos - SP 13565-905, Brazil
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I. A. Santos
I. A. Santos
1Department of Physics,
State University of Maringá
, Av. Colombo 5790, Maringá - PR 87020-900, Brazil
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D. Z. Montanher
1
J. R. D. Pereira
1
L. F. Cótica
1
R. A. M. Gotardo
2
D. S. F. Viana
3
D. Garcia
3
J. A. Eiras
3
I. A. Santos
1
1Department of Physics,
State University of Maringá
, Av. Colombo 5790, Maringá - PR 87020-900, Brazil
2
Technological Federal University of Paraná
, Av. Alberto Carazzai 1640, Cornélio Procópio - PR 86300-000, Brazil
3Department of Physics,
Federal University of São Carlos
, Rod. Washington Luiz, Km 235, São Carlos - SP 13565-905, Brazil
J. Appl. Phys. 116, 114507 (2014)
Article history
Received:
June 16 2014
Accepted:
September 08 2014
Citation
D. Z. Montanher, J. R. D. Pereira, L. F. Cótica, R. A. M. Gotardo, D. S. F. Viana, D. Garcia, J. A. Eiras, I. A. Santos; High strain in polycrystalline Ni48.8Mn31.4Ga19.8 Heusler alloys under overlapped static and oscillating magnetic fields. J. Appl. Phys. 21 September 2014; 116 (11): 114507. https://doi.org/10.1063/1.4896067
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