Results 31 to 40 of about 1,437,451 (197)

Coarsening Evolution of γ′ Phase and Failure Mechanism of Co-Ni-Al-Ti-Based Superalloys During Isothermal Aging

, 2022
Novel Co-based superalloys, as potentially ideal aero-engine hot section materials, have a higher temperature bearing capacity and better oxidation resistance than Ni-based superalloys.
Qiuzhi Gao (12465435), Qingshuang Ma (2352232), Hailian Zhang (14349339), Huijun Li (172039), Linlin Sun (396058), Hang Shang (14423725), Xuming Zhang (1592623)   +6 more
core   +1 more source

Flexible IGZO Field‐Effect Transistor Biosensor Platform for Mechanically Stable and Cortisol Detection

Advanced Electronic Materials, EarlyView.
A flexible indium–gallium–zinc oxide field‐effect transistor platform on polyimide is developed for electrostatic cortisol detection. Wafer‐scale fabricated devices exhibit uniform electrical characteristics and maintain stable operation under mechanical bending.
Ngoc Thanh Ho, Sina Jamali, Tuan‐Khoa Nguyen, Nam‐Trung Nguyen   +3 more
wiley   +1 more source

Ultralow‐Power Floating‐Gate InGaZnO Content‐Addressable Memory for Wearable Electrocardiogram Anomaly Detection

Advanced Intelligent Systems, EarlyView.
This study introduces a subthreshold in‐memory anomaly detection architecture for wearable ECG monitoring using floating‐gate IGZO content‐addressable memories on a flexible substrate. Area‐engineered coupling provides a high subthreshold slope, while subthreshold operation realizes intrinsic exponential distance evaluation and linear voltage sensing ...
Hyung‐Jun Noh, Sunyeol Bae, Yumin Yun, Junhyeong Park, Soo‐Yeon Lee   +4 more
wiley   +1 more source

Effect of Stoichiometry on Shape Memory Properties of Ti-Ni-Hf-Cu-Nb Shape Memory Alloys Manufactured by Suspended Droplet Alloying

Solids, 2022
A novel Ti-Ni-Hf-Cu-Nb shape memory alloy has been developed by a new combinatorial alloy synthesis method, the Suspended Droplet Alloying. The influence of alloying elements on the transformation temperature, the microstructure and the shape memory ...
Sheng Li, Minshi Wang, Khamis Essa, Chunlei Gan, Chunyan Liu, Moataz Attallah   +5 more
doaj   +1 more source

Effect of Copper Content on Superelasticity Characteristics in Ti-Ni and Ti-Ni-Cu Alloy Wires

MATERIALS TRANSACTIONS, 2002
The effect of copper content on superelasticity characteristics in Ti–Ni and Ti–Ni–Cu alloy wires was investigated by performing isothermal cyclic tensile tests at a temperature of Af + 25 K. Specimens were Ti–50Ni, Ti–45Ni–5Cu, Ti–40Ni–10Cu and Ti–37Ni–13Cu(at%), annealed at 673 K for 3.6 ks after cold drawing with 30% reduction. The results show that
Sakuma, Toshio, Hosogi, Maho, Okabe, Nagatoshi, Iwata, Uichi, Okita, Keisuke   +4 more
openaire   +2 more sources

Low‐Voltage Operation of IGZO Memtransistors Enabled by Coupling Enhancement Through 2T Drain‐Driven Operation for Neuromorphic Computing

Advanced Intelligent Systems, EarlyView.
A two‐terminal IGZO memtransistor enabling low‐voltage operation is demonstrated through coupling enhancement. By utilizing drain‐induced Fowler–Nordheim tunneling, the device achieves programming below 10 V with a large memory window and high on/off ratio.
Junhyeong Park, Sunyeol Bae, Yumin Yun, Chae‐Hwan Park, Donghyeon Lee, Soo‐Yeon Lee   +5 more
wiley   +1 more source

Microstructure and phase evolution of functionally graded multi-materials of Ni–Ti alloy fabricated by laser powder bed fusion process

Journal of Materials Research and Technology, 2023
The layer-by-layer laser powder bed fusion (L-PBF) process was applied to fabricate functionally graded multi-materials (FGMs) of nickel-titanium alloy.
Phuangphaga Daram, Takanobu Hiroto, Makoto Watanabe   +2 more
doaj   +1 more source

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

Carbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey, Rashid Al‐Hajri, Ala'a H. Al‐Muhtaseb, Hussein A. Younus, Mohammed Al‐Abri   +4 more
wiley   +1 more source

Multifunctional coatings of nickel-titanium implant toward promote osseointegration after operation of bone tumor and clinical application: a review

Frontiers in Bioengineering and Biotechnology
Metal implants, especially Ni-Ti shape memory alloy (Ni-Ti SMA) implants, have increasingly become the first choice for fracture and massive bone defects after orthopedic bone tumor surgery.
Tianhao Du, Tianhao Du, Jia Liu, Jinhan Dong, Haoxu Xie, Haoxu Xie, Xiao Wang, Xiao Wang, Xu Yang, Yingxin Yang   +9 more
doaj   +1 more source

Effects of Thermomechanical Treatment on Phase Transformation of the Ti₅₀Ni₄₉W₁ Shape Memory Alloy

Metals, 2020
The Ti50Ni49W1 alloy has a B2 ↔ 19’ martensitic transformation but slightly lower shape recovery than the Ti50Ni50 alloy. The B19’ martensite structure in the Ti50Ni49W1 has the lattice parameters a = 0.301 nm; b = 0.423 nm; c = 0.472 nm; and β = 97.5 ...
Tyau-Song Huang, Shih-Fu Ou, Cheng-Hsien Kuo, Cheng-Hsiu Yang   +3 more
doaj   +1 more source