[HTML][HTML] Investigations on performance viability of NiTi, NiTiCu, CuAlNi and CuAlNiMn shape memory alloy/Kapton composite thin film for actuator application

S Jayachandran, K Akash, SSM Prabu… - Composites Part B …, 2019 - Elsevier
In this work, the thermomechanical behavior of NiTi, NiTiCu, CuAlNi, CuAlNiMn shape
memory alloy (SMA) thin films deposited on Kapton polyimide substrate has been …

Parametric Investigation on laser annealing of polyimide on improving the characteristics of NiTi SMA-based bimorph towards the development of microactuators

K Gangwar, D Gupta, PI Anand - Sensors and Actuators A: Physical, 2023 - Elsevier
Laser annealing of polyimide enhances the characteristics such as actuation and substrate-
to-film adhesion of the NiTi shape memory alloy (SMA) bimorph. This work investigated the …

Effect of nitrogen flow ratio on nano-mechanical properties of tantalum nitride thin film

SS Firouzabadi, M Naderi, K Dehghani… - Journal of Alloys and …, 2017 - Elsevier
In this research, nanostructured tantalum nitride (TaN) thin films were deposited on 316L
stainless steel substrates by reactive magnetron sputtering. The effect of nitrogen flow ratio …

Nonlinear eccentric bending and buckling of laminated cantilever beams actuated by embedded pre-stretched SMA wires

F **, C Zhao, P Xu, J Xue, F **a - Composite Structures, 2022 - Elsevier
This paper presents a theoretical approach to analyze the eccentric bending and buckling of
laminated cantilever beams actuated by embedded pre-stretched SMA wires. Two …

Exploring the functional capabilities of NiTi shape memory alloy thin films deposited using electron beam evaporation technique

S Jayachandran, SSM Prabu, M Manikandan… - Vacuum, 2019 - Elsevier
The viability of utilizing electron beam evaporation technique for the development of NiTi
shape memory alloy (SMA) thin films on kapton polyimide (flexible substrate) has been …

Influence of pre-strain on attributes of Ni-rich NiTi/Kapton polyimide bimorph for flexible mirrors

K Gangwar, S Jayachandran, A Sahu, A Singh… - Sensors and Actuators A …, 2022 - Elsevier
Abstract In this work, Shape Memory Alloy (SMA) based flexible mirrors were fabricated
using the E-beam evaporation technique with varying pre-strain on the Kapton polyimide …

Micromechanics of substrate-supported thin films

W He, M Han, S Wang, LA Li, X Xue - Acta Mechanica Sinica, 2018 - Springer
The mechanical properties of metallic thin films deposited on a substrate play a crucial role
in the performance of micro/nano-electromechanical systems (MEMS/NEMS) and flexible …

[HTML][HTML] A semi-analytical solution for bending response of SMA composite beams considering SMA asymmetric behavior

P Fahimi, AH Eskandari, M Baghani, A Taheri - Composites Part B …, 2019 - Elsevier
This paper develops a novel and robust semi-analytical model to investigate the bending
response of an SMA composite beam during a loading-unloading cycle based on an …

Graphene-based stretchable and transparent moisture barrier

S Won, JY Lee, HJ Jung, M Hur, KS Kim, HJ Lee… - …, 2018 - iopscience.iop.org
We propose an alumina-deposited double-layer graphene (2LG) as a transparent, scalable,
and stretchable barrier against moisture; this barrier is indispensable for foldable or …

Strain transfer through film-substrate interface and surface curvature evolution during a tensile test

W He, M Han, P Goudeau, E Le Bourhis… - Applied Surface …, 2018 - Elsevier
Uniaxial tensile tests on polyimide-supported thin metal films are performed to respectively
study the macroscopic strain transfer through an interface and the surface curvature …