Results 61 to 70 of about 1,006,667 (349)

Silicon carbide low temperature sintering: the particle size effect of raw materials and sintering additive

open access: yesMaterials Research Express, 2020
Aiming at dense sintering of silicon carbide ceramic, magnesium alloy powder was taken as additive, and silicon carbide powders with two different particle size were sintered by the same hot pressure sintering process.
Jingkun Li   +3 more
doaj   +1 more source

Self‐Trapped Hole Migration and Defect‐Mediated Thermal Quenching of Luminescence in α‐ and β‐Ga2O3

open access: yesAdvanced Functional Materials, EarlyView.
Temperature‐dependent photoluminescence and first‐principles calculations reveal self‐trapped hole migration as the microscopic origin of thermal quenching in α‐ and β‐Ga2O3. The low migration barrier in α‐Ga2O3 enables defect trapping and enhances blue luminescence, while the higher barrier in β‐Ga2O3 preserves ultraviolet emission at elevated ...
Nima Hajizadeh   +11 more
wiley   +1 more source

Mechanical and tribological behaviour of nano scaled silicon carbide reinforced aluminium composites

open access: yesJournal of Experimental Nanoscience, 2018
This work assesses the impact of the presence of Nano scaled silicon carbide on the Mechanical & Tribological behavior of aluminium matrix composites. Aluminium matrix composites containing 0, 0.5, 1, 1.5, 2 and 2.5 wt.%-nano scaled silicon carbide was ...
Nadeem Faisal, Kaushik Kumar
doaj   +1 more source

Preliminary study on the performance of biomorphic silicon carbide as substrate for diesel particulate filters [PDF]

open access: yes, 2018
This paper presents the results of a preliminary experimental study to assess the performance of biomorphic silicon carbide when used for the abatement of soot particles in the exhaust of Diesel engines.
Becerra Villanueva, José Antonio   +5 more
core   +1 more source

Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing

open access: yesAdvanced Functional Materials, EarlyView.
In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee   +12 more
wiley   +1 more source

Thin film process forms effective electrical contacts on semiconductor crystals [PDF]

open access: yes, 1967
Process makes microscopic, low-resistance electrical contacts on hexagonal n-type silicon carbide crystals used for microelectronic devices. A vacuum deposition of aluminum is etched to expose the bare silicon carbide where the electrical contacts are ...
Formigoni, N. P., Roberts, J. S.
core   +1 more source

Electrical charge state manipulation of single silicon vacancies in a silicon carbide quantum optoelectronic device. [PDF]

open access: yesNano letters (Print), 2019
Color centers with long-lived spins are established platforms for quantum sensing and quantum information applications. Color centers exist in different charge states, each of them with distinct optical and spin properties.
M. Widmann   +16 more
semanticscholar   +1 more source

Nanotesla Magnetometry with the Silicon Vacancy in Silicon Carbide [PDF]

open access: yes, 2020
Silicon Carbide is a promising host material for spin defect based quantum sensors owing to its commercial availability and established techniques for electrical and optical microfabricated device integration.
John B. S. Abraham   +13 more
semanticscholar   +1 more source

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

open access: yesAdvanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh   +2 more
wiley   +1 more source

The Effect of Substrate Crystal Orientations on Surface Properties of SiC Thin Layer Grown by MBE

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
Silicon carbide is expected to be used as a next-generation material because of its more effective mechanical and electronic properties. The hetero Molecular Beam Epitaxy process may provide a method to form thin layered mono-crystal Silicon carbide on a
Akira KAKUTA   +2 more
doaj   +1 more source

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