Results 101 to 110 of about 305,244 (339)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Effects of Cryogenic Treatment and Tempering on Mechanical Properties and Microstructure of 0.25C-0.80Si-1.6Mn Steel

open access: yesAdvances in Materials Science and Engineering, 2020
The effects of mechanical strength and yield ratio on the seismic steel are significant. This paper investigated the mechanical strength and yield ratio of medium carbon seismic steel by deep cryogenic treatment at −60°C and −110°C for 60∼120 s and ...
Yuhua Li, Yongli Chen, Xuejiao Zhou
doaj   +1 more source

Radiative cooler for spacecraft [PDF]

open access: yes, 1972
The design, construction, and testing of a passive radiative cooler that provides solutions to the design problems of withstanding mechanical stress, achieving the required thermal isolation, and maintaining optical alinement, cleanliness, and ...
Mccullough, J. E.
core   +1 more source

First-principles DFT + GW study of the Te antisite in CdTe

open access: yes, 2016
Formation energies, charge transitions levels, and quasiparticle defect states of the tellurium antisite $(\text{Te}_\text{Cd})$ in CdTe are addressed within the DFT${0.05cm}+{0.05cm}$\emph{GW} formalism.
Flores, Mauricio A.   +2 more
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Effect of deep-cryogenic treatment on high speed steel properties

open access: yesMateriali in tehnologije, 2008
Advantages of deep-cryogenic treatment over standard heat treatment of high speed steels for the purpose of obtaining better exploitation properties are quoted in an increasing number of scientific papers to be found in literature. This paper deals with the most important improvements of high speed steel properties achieved by using deep-cryogenic ...
Landek, Darko   +2 more
openaire  

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Coupling Nanostructured Plasmon–Strain Microwave Waveguide to Spin Defects in Hexagonal Boron Nitride for High‐Sensitivity Quantum Sensors

open access: yesAdvanced Materials, EarlyView.
Coupling of spin‐active VB−$V_B^ - $ defects in hBN with alumina‐coated gold plasmonic nanoresonators (PNRs), integrated into a microwave‐efficient waveguide, constitutes a plasmon‐strain architecture that enhances their photoluminescence and spin contrast. This platform enables a tenfold quantum yield improvement and achieves a DC magnetic sensitivity
Naveed Hussain   +12 more
wiley   +1 more source

Effects of Deep Cryogenic Cycle Treatment on the Structure and Tribological Properties of Fe-Based Amorphous Coatings [PDF]

open access: yesCailiao Baohu
To address the issue of poor plasticity and toughness of Fe-base amorphous coatings,deep cryogenic cycling treatment (DCT) was applied with varying numbers of cycles.The effects of 30 and 60 cycles of DCT on the structure and tribological properties of ...
ZHAO Jianhua, HUANG Liting, ZHUANG Shudong, TIAN Fang, JI Xiulin
doaj   +1 more source

Rolling-contact bearing reference summary [PDF]

open access: yes
Design and performance of rolling contact ...
Cox, D. B.   +3 more
core   +1 more source

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