Progress in the semiconductor/diamond heterogeneous integrations: Technical methods, interfacial phonon transport, and thermal characterizations

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 46, P. 104178 - 104178

Published: March 1, 2024

Language: Английский

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Strong and Tough Multilayer Heterogeneous Pyrocarbon Based Composites

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract The integration of bio‐inspired hierarchical design into synthetic carbon materials holds promise for developing lightweight, high‐performance structural materials. Hierarchical and heterogeneous nanoscale units are crucial to load bearing mechanical functionality yet receives limited attention difficulties in accurate regulation. Herein, one kind multilayered have proposed pyrocarbon based composite constructed through chemical vapor deposition method with graphene orderliness Sequential construction from orientational sheets nondirective isotropic networks is achieved controlling the size morphology pyrolysis intermediates moderate oxidation, being expected facilitate transfer stability dynamically adjustment interfacial sliding. resulting multilayer phases exhibit impressive strengthening toughening mechanisms dominated by microstructural multiscale coupling, which provides new solutions composites high‐temperature aerospace applications. Additionally, multiple internal reflections arising abundant interfaces significantly improve efficiency electromagnetic microwave absorption. manipulation offer novel insights assembly wide‐temperature applications macroscopic carbon‐based composites.

Language: Английский

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Self-healing behavior of superhard covalent bond materials

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review presents the classification and healing mechanisms of self-healing materials, with an emphasis on expounding latest progress challenges superhard materials.

Language: Английский

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Microstructure engineering in diamond-based materials

Nature Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Language: Английский

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Nanodiamond Coating in Energy and Engineering Fields: Synthesis Methods, Characteristics, and Applications

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 10, 2024

Abstract Nanodiamonds are metastable allotropes of carbon. Based on their high hardness, chemical inertness, thermal conductivity, and wide bandgap, nanodiamonds widely used in energy engineering applications the form coatings, such as mechanical processing, nuclear engineering, semiconductors, etc., particularly focusing reinforcement performance, corrosion resistance, heat transfer, electrical behavior. In nanodiamond coatings can elevate hardness wear improve efficiency components, concomitantly reduce friction, diminish maintenance costs, under high‐load conditions. Concerning inertness gradually becoming preferred manufacturing material or surface modification for equipment harsh environments. As extremely coefficient conductivity makes them one main materials exchange equipment. The increase nucleation sites results excellent performance during boiling transfer stage. Additionally, concerning properties, solar cells fuel cells, great electrochemical electrocatalytic is found. This article will briefly describe application mechanism analysis above‐mentioned fields.

Language: Английский

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Multiphase hydrogen bonding strategies room temperature self-healing, recyclable polyurethane elastomers for applications in flame retardant materials

Materials Today Communications, Journal Year: 2024, Volume and Issue: 41, P. 110358 - 110358

Published: Sept. 7, 2024

Language: Английский

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Atomic surface of diamond induced by novel green photocatalytic chemical mechanical polishing with high material removal rate

International Journal of Extreme Manufacturing, Journal Year: 2024, Volume and Issue: 7(2), P. 025102 - 025102

Published: Dec. 12, 2024

Abstract Atomic surfaces are strictly required by high-performance devices of diamond. Nevertheless, diamond is the hardest material in nature, leading to low removal rate (MRR) and high surface roughness during machining. Noxious slurries widely used conventional chemical mechanical polishing (CMP), resulting possible pollution environment. Moreover, traditional normally contain more than four ingredients, causing difficulties control process quality CMP. To solve these challenges, a novel green CMP for single crystal was developed, consisting only hydrogen peroxide, abrasive Prussian blue (PB) /titania catalyst. After CMP, atomic achieved with Sa 0.079 nm, MRR 1168 nm·h −1 . Thickness damaged layer merely 0.66 nm confirmed transmission electron microscopy (TEM). X-ray photoelectron spectroscopy, paramagnetic resonance TEM reveal that •OH radicals form under ultraviolet irradiation on PB/titania The oxidize diamond, transforming it from monocrystalline amorphous structure, generating soft layer. This contributes formation developed offers new insights achieve potential use their devices.

Language: Английский

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Study on the law of atom migration rate of stress-dislocation subsurface damage in silicon wafer

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112089 - 112089

Published: March 1, 2025

Language: Английский

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Application and prospect of in situ TEM in wide bandgap semiconductor materials and devices

Applied Physics Reviews, Journal Year: 2025, Volume and Issue: 12(1)

Published: March 1, 2025

Wide bandgap semiconductor (WBS) materials have a wide range of applications in radio frequency and power electronics due to their many advantages such as high saturation drift velocity, breakdown voltage, excellent thermal/chemical stability. Diamond, Ga2O3, GaN, SiC are typical WBS materials. Reliability studies for these four devices crucial applications. Traditional means reliability include, but not limited to, x-ray diffraction, atomic force microscopy, Raman spectroscopy, electron microscopy et al. However, most methods ex situ after material or device failure thus some limitations. In transmission microscope (TEM) is favorable technology observe the degradation process real time, which may provide effective guidance growth, structure design, optimization, improvement. recent years, TEM has been gradually used by researchers study devices. this review, we present comprehensive systematic review works on diamond, devices, with particular focus progress While summarizing investigation also looks forward future promoting

Language: Английский

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Simulation of the mechanical properties of crystalline diamond nanoparticles with an amorphous carbon shell

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112188 - 112188

Published: March 1, 2025

Language: Английский

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