Development of Ultra-High Mechanical Damping Structures Based on the Nano-Scale Properties of Shape Memory Alloys

2013 ◽  
Author(s):  
Jose San Juan ◽  
Maria L. No
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Nano Scale ◽  
Mechanical Damping ◽  
Scale Properties

Nano-scale superelastic response of laser-welded NiTi shape-memory alloys

2021 ◽  
pp. 1-9
Author(s):  
Himanshu Vashishtha ◽  
Deepak Kumar ◽  
Suresh Neelakantan ◽  
Jayant Jain
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Nano Scale ◽  
Niti Shape Memory Alloys

Nanoscale shape-memory alloys for ultrahigh mechanical damping

2009 ◽  
Vol 4 (7) ◽  
pp. 415-419 ◽  
Author(s):  
Jose San Juan ◽  
Maria L. Nó ◽  
Christopher A. Schuh
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Mechanical Damping

Nanocrystalline NiTi shape memory alloys with huge superelasticity and high mechanical damping

2014 ◽  
Vol 18 (sup4) ◽  
pp. S4-578-S4-583 ◽  
Author(s):  
X. B. Shi ◽  
L. S. Cui ◽  
D. Q. Jiang ◽  
F. M. Guo ◽  
M. Y. Yu
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Mechanical Damping ◽  
Niti Shape Memory Alloys

MECHANICAL DAMPING WITH HIGH HYSTERESIS CU-BASE SHAPE-MEMORY ALLOYS

2014 ◽  
Author(s):  
Franco de Castro Bubani ◽  
Marcos Sade ◽  
Francisco Lovey
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Mechanical Damping

Temperature variations at nano-scale level in phase transformed nanocrystalline NiTi shape memory alloys adjacent to graphene layers

Nanoscale ◽  
2013 ◽  
Vol 5 (14) ◽  
pp. 6479 ◽  
Author(s):  
Abbas Amini ◽  
Chun Cheng ◽  
Minoo Naebe ◽  
Jeffrey S. Church ◽  
Nishar Hameed ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Scale Level ◽  
Temperature Variations ◽  
Graphene Layers ◽  
Nano Scale ◽  
Niti Shape Memory Alloys

scholarly journals Thermo-Mechanical behavior at Nano-Scale and Size Effects in Shape Memory Alloys

2011 ◽  
Vol 1297 ◽  
Author(s):  
Jose San Juan ◽  
Maria L. Nó ◽  
Christopher A. Schuh
Keyword(s):  
Mechanical Properties ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Size Effects ◽  
Small Scale ◽  
Compression Tests ◽  
Bulk Materials ◽  
Sensors And Actuators ◽  
Nano Scale

ABSTRACTShape Memory Alloys (SMA) undergo reversible martensitic transformation in response to changes in temperature or applied stress, exhibiting specific properties of superelasticity and shape memory. At present there is a high scientific and technological interest to develop these properties at small scale, to apply SMA as sensors and actuators in MEMS technologies. In order to study the thermo-mechanical properties of SMA at micro and nano scale, instrumented nano indentation is being widely used for nano compression tests. By using this technique, superelasticity and shape memory at the nano-scale has been demonstrated in micro and nano pillars of Cu-Al-Ni SMA. However the martensitic transformation seems to exhibit a different behavior at small scale than in bulk materials and a size effect on superelasticity has been recently reported. In the present work we will overview the thermo-mechanical properties of Cu-Al-Ni SMA at the nano-scale, with special emphasis on size effects. Finally, the above commented size effects will be discussed on the light of the microscopic mechanisms controlling the martensitic transformation at nano scale.

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