Zobrazeno 1 - 10
of 1 455
pro vyhledávání: '"cryogenic temperatures"'
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 6, Pp 2534-2556 (2024)
The impact of grain size, ranging from 0.9 μm to 9 μm, on the mechanical properties of commercially pure Mg is investigated at temperatures of 4K, 78K, and 298K. The mechanisms governing plastic flow are influenced by both grain size and temperatur
Externí odkaz:
https://doaj.org/article/0dd2dd5183f1427e8a239f820565bf07
Autor:
Zhou Li, Junhao Li, Tong Shen, Daoguang He, Xianshi Jia, Shiqi Xia, Jingwei Zhao, Rui Wang, Zhengyi Jiang
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 3297-3307 (2024)
Examining the cryogenic-temperature characteristics of composites is imperative for ensuring the sustained functionality of their components in environments with cryogenic temperatures. The plastic deformation and fracture mechanisms of a novel Al/Mg
Externí odkaz:
https://doaj.org/article/a0b11303e6624edb8b068db0fc6cc164
Autor:
Gaspar Mendes Rego
Publikováno v:
Sensors, Vol 24, Iss 15, p 4857 (2024)
In this paper we derived an expression that allows the determination of the thermo-optic coefficient of weakly-guiding germanium-doped silica fibers, based on the thermal behavior of optical fiber devices, such as, fiber Bragg gratings (FBGs). The ca
Externí odkaz:
https://doaj.org/article/6b32a9dc5e034dd88bc126db3343eed0
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 3137-3150 (2023)
High strength aluminum alloy sheets with excellent formability are necessary for the successful fabrication of complex-shaped components in order to prevent cracking during the forming process. To address this issue, this study investigated the forma
Externí odkaz:
https://doaj.org/article/6f229f70ff7247c0bf0644c557b62984
Publikováno v:
Friction, Vol 12, Iss 2, Pp 245-257 (2023)
Abstract Fabric composites are widely employed in self-lubricating bearing liners as solid lubrication materials. Although the tribological behaviors of fabric composites have been extensively studied, the cryogenic tribological properties and mechan
Externí odkaz:
https://doaj.org/article/f213aead757940d290d302d8634add9e
Publikováno v:
Metals, Vol 14, Iss 7, p 778 (2024)
An analysis of the processes of plastic deformation and acoustic relaxation in a high-entropy alloy, Al0.5CoCrCuFeNi, was carried out. The following were established: dominant dislocation defects; types of barriers that prevent the movement of disloc
Externí odkaz:
https://doaj.org/article/078678cc538d425dba40e390f728452c
Autor:
Jianyong Qiao, Ivan Vladimirovich Ushakov, Ivan Sergeevich Safronov, Ayur Dasheevich Oshorov, Zhiqiang Wang, Olga Vitalievna Andrukhova, Olga Vladimirovna Rychkova
Publikováno v:
Nanomaterials, Vol 14, Iss 8, p 723 (2024)
In this work, we consider the physical basis of deformation and fracture in layered composite nanocrystalline/amorphous material–low-melting crystalline alloy in a wide temperature range. Deformation and fracture at the crack tip on the boundary of
Externí odkaz:
https://doaj.org/article/182681e362ab4c87856751d3ed245506
Autor:
Amol D. Gaidhane, Rakshith Saligram, Wriddhi Chakraborty, Suman Datta, Arijit Raychowdhury, Yu Cao
Publikováno v:
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits, Vol 9, Iss 2, Pp 108-115 (2023)
Cryogenic operation of CMOS transistors (i.e., cryo-CMOS) effectively brings an ultrasteep subthreshold slope (SS) and ultralow leakage, enabling high energy efficiency with appropriate tuning of threshold voltage and supply voltage. On the other han
Externí odkaz:
https://doaj.org/article/fed93837ae8d40acadf8b2822e452c86
Autor:
Manoj Stanley, Rowan Parker-Jervis, James Skinner, Sebastian De Graaf, Tobias Lindstrom, John E. Cunningham, Nick M. Ridler
Publikováno v:
IEEE Access, Vol 11, Pp 60626-60634 (2023)
Many quantum technologies rely heavily on propagation of RF and microwave signals through devices at cryogenic temperatures, and detailed understanding of materials and signal propagation is therefore key to improving the performance of quantum circu
Externí odkaz:
https://doaj.org/article/cea0f3cb0a7b4b369a6ba10d82012986
Publikováno v:
IEEE Journal of the Electron Devices Society, Vol 11, Pp 22-29 (2023)
In this paper, we present on the cryogenic characterization of short channel 28-nm FD-SOI nMOS and pMOS transistors having widths of the $1 ~\mu \text{m}$ and $0.08 ~\mu \text{m}$ at temperatures ranging from T = 300 K down to T = 10 K. We report, fo
Externí odkaz:
https://doaj.org/article/e35360b0937e4a388874b41841b4ce5a