Results 41 to 50 of about 11,117 (260)

Isothermal annealing influence on structural defects and some characteristics of Bismuth Telluride wire crystals

Moldavian Journal of the Physical Sciences, 2007
Possibilities to control microdefect formation in bismuth telluride wire crystals by choice of optimal modes of isothermal annealing are discussed. It is found that a decrease of density of structural defects, such as microcracks, dislocations, and ...
Dantu, M, Meglei, Dragoş, Rusu, Alexandru   +2 more
doaj  

Solution‐Processed Thin‐Film Transistors With Tunable Temporal Dynamics for Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Solution‐processed CNT and CNT/P3HT ion‐gated transistors exhibit materials‐defined synaptic timescales: fast CNT devices for high‐frequency spiking and slow hybrid devices for temporal integration. Embedding these dynamics into coupled reservoir‐computing and spiking neural network simulations reveals that a Hybrid‐Reservoir / CNT‐SNN architecture ...
Kevin Schnittker, Haoyi Lin, Zahra Bahrami, Strahinja Marinkovic, Sung Hyun Lee, Joseph Andrews   +5 more
wiley   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Effect of Isothermal Spheroidizing Annealing Process in HOE 400/250 Bell-Type Furnace on Hardness and Structure of Bearing Steel GCr15

Teshugang, 2015
The hardness and structure of bearing steel GCr15 by normal continuous spheroidizing annealing at 780 °C with 15 -20 °C/h furnace cooling to 660 °C , and by isothermal spheroidizing annealing at 780 T with 30 °C/h cooling to 720 °C for 2 h then with 20 ...
王莹莹, 杨鹏远
doaj  

Crystallization Behavior and Mechanical Properties of Cu-based Bulk Metallic Glass Composites [PDF]

Materials Research, 2019
This work highlights the relationship between the preparation, crystallization behavior, microstructures, and mechanical properties of Cu-based bulk metallic glasses (BMGs) and their composites (BMGCs). (Cu47Zr45Al8)97.5Y1.5Nb in-situ BMGCs were prepared
Ge Wang, Boyu Jiang, Xingguo Zhang, Bingwen Zhou, Linggang Meng   +4 more
doaj   +1 more source

Effects of Cooling Rate on the Solidification Process of Pure Metal Al: Molecular Dynamics Simulations Based on the MFPT Method

Metals, 2022
Isothermal solidification process of pure metal Al was studied by molecular dynamics (MD) simulation using EAM potential. The effects of different cooling rates on the isothermal solidification process of metallic Al were studied.
Xiaohua Chen, Weijie Fan, Wenwen Jiang, Deye Lin, Zidong Wang, Xidong Hui, Yanlin Wang   +6 more
doaj   +1 more source

Ultrasensitive Detection of Porcine Epidemic Diarrhea Virus Infections Using Multivalent DNA Nanostructure‐Enabled Lateral Flow Assay

Advanced Healthcare Materials, EarlyView.
A multivalent DNA nanostructure‐enabled lateral flow assay was developed for rapid, ultrasensitive detection of porcine epidemic diarrhea virus (PEDV) nucleocapsid protein. Designer net‐shaped DNA nanostructures (DNA‐Net) presenting PEDV‐specific aptamers achieved ~1000‐fold enhanced binding, enabling detection of viral copies with Ct ≤ 37.42 within 10
Saurabh Umrao, Akhila Naru, Dhanush Gandavadi, Mengxi Zheng, Saraswathi Lanka, Hyeongjun Cho, Chau Nguyen Minh Hoang, Jianqiang Zhang, Ying Fang, Xing Wang   +9 more
wiley   +1 more source

The Nanoparticle-induced Zener Pinning Effect on Strain-softening in a Cold-Worked Cu-Al2O3 Composite with 0.1 wt.% Al Content

Medžiagotyra
The thermo-stability of microstructure during isothermal annealing at 900 °C and 1000 °C in a cold-worked Cu-Al2O3 composite with 0.1 wt.% Al content and its effect on resistance to softening were investigated in this paper.
Dongping ZHANG, Peng WEI, Hengju LI, Zhihui CHEN, Kuixian WEI   +4 more
doaj   +1 more source

Optimization of annealing modes of cast tool made of R6M5L steel [PDF]

Металознавство та обробка металів, 2019
A simple configuration cast tool made by the technology of chill casting with intensive cooling during crystallization from R6M5L steel is characterized by a fine-grained structure, increased alloying of the solid solution and a hardness of 62-63 HRC; it
Kondratyuk Stanislav Ye., Parkhomchuk Zhanna V., Veis Valentyn I.   +2 more
doaj   +1 more source