Results 11 to 20 of about 61,680 (269)

Thermal-inert and ohmic-contact interface for high performance half-Heusler based thermoelectric generator

open access: yesNature Communications, 2022
Unsatisfied electrode bonding in half-Heusler devices limits their practical service at high temperatures. Here, the authors develop a direct bonding interface to ideal ohmic contact and thermally inert and ohmic contact, leading to high deficiency.
Ruiheng Liu   +10 more
doaj   +1 more source

Fine-Grained Tb3Al5O12 Transparent Ceramics Prepared by Co-Precipitation Synthesis and Two-Step Sintering

open access: yesMagnetochemistry, 2023
In recent years, transparent terbium aluminum garnet (TAG) ceramics have attracted much attention for use in high-power Faraday isolators. Fine-grained ceramics usually possess better mechanical properties and accordingly better service performance.
Lixuan Zhang   +10 more
doaj   +1 more source

Dual fluorination of polymer electrolyte and conversion-type cathode for high-capacity all-solid-state lithium metal batteries

open access: yesNature Communications, 2022
The practical use of all-solid-state batteries is hindered by inadequate cycling performance. Here, the authors propose a fluorination strategy for the positive electrode and polymeric electrolyte to develop all-solid-state Li||FeF3 pouch cells with high
Jiulin Hu   +6 more
doaj   +1 more source

Ceramic Keratoprostheses

open access: yesOphthalmology, 1980
This paper describes a new type of corneal prosthesis made of aluminum oxide ceramic. The implant consists of a retaining plate with a 3-mm central performation to which an optical cylinder is threaded. The cylinder also made of ceramic material, has a high refractive index and 60 diopters of power. Experimental study has shown that soft tissue adheres
From the Department of Ophthalmology, University of Florida, College of Medicine, J. Hillis Miller Health Center, Gainesville ( host institution )   +2 more
openaire   +4 more sources

Gel-tape-casting of aluminum nitride ceramics

open access: yesJournal of Advanced Ceramics, 2017
Aluminum nitride ceramic sheets were formed for the first time by a novel and simple method, namely gel-tape-casting process, where only two additives were used to prepare the slurries. PIBM (a water-soluble copolymer of isobutylene and maleic anhydride)
Qiushun Shang   +5 more
doaj   +1 more source

Active site recovery and N-N bond breakage during hydrazine oxidation boosting the electrochemical hydrogen production

open access: yesNature Communications, 2023
Substituting hydrazine oxidation reaction for oxygen evolution reaction can result in greatly reduced energy consumption for hydrogen production, however, the mechanism and the electrochemical utilization rate of hydrazine oxidation reaction remain ...
Libo Zhu   +10 more
doaj   +1 more source

Reaction mechanism and microstructure development of ZrSi2 melt-infiltrated Cf/SiC-ZrC-ZrB2 composites: The influence of preform pore structures

open access: yesJournal of Materiomics, 2018
Reactive melt infiltration (RMI) is an effective method for fabrication of highly dense carbon fiber reinforced ultra-high temperature ceramic matrix composites (Cf/UHTCs).
Xiaowu Chen   +6 more
doaj   +1 more source

Effect of Sc substitution on the phase composition, microstructure, and properties of (Tb1−xScx)3(Al1−yScy)2Al3O12 transparent ceramics

open access: yesJournal of Advanced Ceramics
Terbium aluminum garnet (Tb3Al5O12; TAG) ceramics are among the most promising magneto–optical materials owing to their outstanding comprehensive performance. Many works have focused on improving the optical quality of TAG ceramics.
Lixuan Zhang   +7 more
doaj   +1 more source

Fabrication of Sm:LuAG transparent ceramics with different doping concentrations for cladding from co-precipitated nano-powders

open access: yesJournal of Advanced Ceramics
For high-repetition-rate nanosecond high-power solid-state lasers, it is essential to choose gain media with moderate saturation flux. Among these materials, Nd:Lu3Al5O12 (LuAG) transparent ceramics have shown significant potential.
Weiwei Han   +6 more
doaj   +1 more source

Composition and luminescence properties of highly robust green-emitting LuAG:Ce/Al2O3 composite phosphor ceramics for high-power solid-state lighting

open access: yesJournal of Advanced Ceramics, 2023
The major advantage of laser lighting over white light-emitting-diode is the possibility to achieve ultra-high luminance. However, phosphors usually suffer laser-induced luminescence saturation, which limits the peak luminance of laser lighting devices ...
Ziqiu Cheng   +10 more
doaj   +1 more source

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