Nano-crystalline Ni Ti alloy thin films fabricated using magnetron co-sputtering from elemental targets: Effect of substrate conditions

A Critical Review on Nickel–Titanium Thin-Film Shape Memory Alloy Fabricated by Magnetron Sputtering and Influence of Process Parameters

“…In sputtering, there are virtually no obstacle for the use of the type of target material, where, pure metals can use DC power, semiconductors and insulators can use RF or pulsed DC energy. In the case of NiTi thin-film deposition, it is generally co-deposited, Ti is connected to RF and Ni to DC, also maintain sputtering yield [34].…”

“…The compositional sensitivity of NiTi alloy and NiTibased alloys on transformation temperatures is represented in Table 4. Priyadarshini et al [34] has shown that, a slight change in composition also effects the behavior of transformation temperature. Addition of ternary elements such as Hf, Pd and Pt has resulted in large improvement of transformation temperature.…”

Magnetic anisotropy switching induced by shape memory effect in NiTi/Ni bilayer

“…A similar oxide layer is observed at the surface of our NiTi free-standing substrate, and such surface oxidation is well referenced in the literature. 25,26 Such a poorly crystallized oxide layer must diminish strain transfer efficiency from NiTi to Ni during the TWSME. Finally, based on fast Fourier transform (FFT) of STEM images, we can quantify strain in the Ni layer, which is confirmed to be fcc and polycrystalline.…”

Revealing nanomechanical deformation at the interface and degradation in all-thin-film inorganic electrochromic devices

“…Up to 40% of the primary energy loss worldwide is currently in buildings due to lighting and heating, ventilation, and air con-ditioning (HVAC). [1][2][3][4] The awareness of being environmentally friendly and carbon dioxide emission issues are driving the rapid development of electrochromic (EC) materials and their associated devices today, especially regarding the implementation of windows or glazing for energy-efficient architectures and buildings. 5 Recently, EC supercapacitors have been growing as a promising category of materials in the rising deployment of portable electronics, optoelectronic devices, displays, etc.…”