Results 101 to 110 of about 6,618 (297)

Constitutive behavior and microstructural evolution of FeMnSiCrNi shape memory alloy subjected to compressive deformation at high temperatures

Materials & Design, 2019
Constitutive behavior and microstructural evolution of FeMnSiCrNi shape memory alloy (SMA) subjected to compressive deformation at high temperatures were investigated based on the different deformation conditions.
Shuyong Jiang, Yu Wang, Yanqiu Zhang, Xiaodong Xing, Bingyao Yan   +4 more
doaj   +1 more source

Thermally Engineered Sodium‐Embedded Alumina with Programmable Synaptic Plasticity for Neuromorphic Transistors

Advanced Functional Materials, EarlyView.
A fully transparent, all‐metal‐oxide neuromorphic transistor using a sodium‐embedded alumina (SEA) electrolyte is demonstrated. By precisely tuning the thermal annealing process, the chemical composition of the SEA layer is controlled, allowing for the deterministic realization of both short‐term and long‐term synaptic plasticity within the same device
Yonghyun Albert Kwon, Jaeyeon Kim, Dong Yeon Won, Saeyoun Park, Youngjae Yoo, Seongchan Kim, Dong‐Hwan Kim, Jeong Ho Cho   +7 more
wiley   +1 more source

Processing, Preaging, and Aging of NiTi-20 at.% Hf High-Temperature Shape Memory Alloy from Laboratory to Industrial Scale [PDF]

, 2021
Faith Gantz, J. G. Rider, Nathan A. Ley, Jordyn M. Ward, Jesse Smith, Marcus L. Young, Drew J. Forbes   +6 more
openalex   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Effects of cold and warm rolling on the shape memory response of Ni50Ti30Hf20 high-temperature shape memory alloy

Acta Materialia, 2018
Abstract The present work reveals the effects of cold and warm rolling on the shape memory response and thermomechanical cyclic stability of Ni50Ti30Hf20 high-temperature shape memory alloy (HTSMA). Cold rolling without intermediate annealing was performed up to the maximum possible thickness reduction before surface cracks appeared.
N. Babacan, M. Bilal, C. Hayrettin, J. Liu, O. Benafan, I. Karaman   +5 more
openaire   +3 more sources

Temperature memory effect of a nickel-titanium shape memory alloy

, 2004
An incomplete transformation cycle induces a kinetic stop in the following complete transformation cycle in shape memory alloys. Therefore, the kinetic stop can be regarded as a memory of the previous arrest temperature.
Zheng, Yanjun, Lishan Cui, Yanjun Zheng, Schrooten, Jan, Jan Schrooten, Cui, Lishan   +5 more
core   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Study on properties of pre-alloy powder of TiNiHf high temperature shape memory alloy for additive manufacturing by preheating treatment

Journal of Materials Research and Technology
In this work, pre-alloyed powder high-temperature shape memory alloy (Ti30Ni50Hf20) for additive manufacturing was preheated at 300–800 °C and thermoscycled at 650 °C to examine the influence of preheating temperature and thermal cycle number on the ...
M.C. Jiang, X.Y. Yang, M.C. Zhang, D.C. Ren, H.F. Nurly, Y. Liu, Y.S. Cai, H.B. Ji, J.F. Lei   +8 more
doaj   +1 more source

Finite Element Simulations of Shape Memory Alloy Actuators in Adaptive Structures

, 2003
Shape memory alloys possess an inherent actuation capability that makes them attractive as actuators in adaptive structures, especially in applications in which their large strains, high specific work output and potential for structural integration are ...
Frautschi, Jason Paul
core  

High-temperature superelasticity and shape memory effect in [0 1 1]B2-oriented single crystals of the (TiZrHf)50Ni25Cu15Co10 high-entropy alloy

, 2022
Y.I. Chumlyakov, И. В. Киреева, L. P. Yakovleva, A.V. Vyrodova, Irina Kuksgauzen   +4 more
openalex   +2 more sources