Results 21 to 30 of about 102,361 (341)

Ultrasonic Characterization of Nanoparticle-Based Ceramics Fabricated by Spark-Plasma Sintering

open access: yesCeramics, 2021
Resonant ultrasound spectroscopy was used to determine elastic constants and internal friction parameters of bulk nanoparticle-based ceramic materials compacted by spark plasma sintering.
Hanuš Seiner   +6 more
doaj   +1 more source

Polymorphism of Bulk Boron Nitride [PDF]

open access: yesScience Advances, 2018
Boron nitride (BN) is a material with outstanding technological promise because of its exceptional thermochemical stability, structural, electronic and thermal conductivity properties, and extreme hardness. Yet, the relative thermodynamic stability of its most common polymorphs (diamond-like cubic and graphite-like hexagonal) has not been resolved ...
Claudio Cazorla, Tim Gould
openaire   +4 more sources

Simple Laser-Induced Hexagonal Boron Nitride Nanospheres for Enhanced Tribological Performance

open access: yesLubricants, 2023
Hexagonal boron nitride, as a layered material with a graphite-like structure, exhibits good mechanical, lubricating and oxidation resistance properties, and is thus expected to become one of the top choices for green lubricating oil additives.
Wei Li   +5 more
doaj   +1 more source

Unidirectional motion of C60-based nanovehicles using hybrid substrates with temperature gradient

open access: yesScientific Reports, 2023
With the synthesis of nanocar structures the idea of transporting energy and payloads on the surface became closer to reality. To eliminate the concern of diffusive surface motion of nanocars, in this study, we evaluate the motion of C60 and C60-based ...
Mohammad Kianezhad   +3 more
doaj   +1 more source

Mechanical properties, thermal conductivity, and modeling of boron nitride-based polymer composites: A review

open access: yeseXPRESS Polymer Letters, 2021
In the past, polymer materials have been used in electronic devices; however, the major drawback with polymers is their low thermal conductivity, i.e., 0.1–0.5 W/(m・K). Hence, researchers came up with the idea of incorporating conductive fillers into the
T. E. Mokoena   +3 more
doaj   +1 more source

Low temperature self-densification of high strength bulk hexagonal boron nitride

open access: yesNature Communications, 2019
Sintering hexagonal boron nitride until it is more than 96% dense remains a challenge. Here, the authors mix cubic boron nitride particles into hexagonal boron nitride flakes and sinter the combined powders to obtain dense hexagonal boron nitride ...
Haotian Yang   +7 more
doaj   +1 more source

Suppression of Spectral Diffusion by Anti-Stokes Excitation of Quantum Emitters in Hexagonal Boron Nitride [PDF]

open access: yes, 2019
Solid-state quantum emitters are garnering a lot of attention due to their role in scalable quantum photonics. A notable majority of these emitters, however, exhibit spectral diffusion due to local, fluctuating electromagnetic fields.
Aharonovich, Igor   +4 more
core   +1 more source

Determination of Young's modulus of Boron Nitride nano tubes using energy method [PDF]

open access: yesمجله مدل سازی در مهندسی
Considering the increasing use of nanotubes in various industries, it is of great importance to investigate the mechanical properties of these nanostructures.
Danial Ghahremani-Moghadam   +3 more
doaj   +1 more source

Hard boron rich boron nitride nanoglasses

open access: yesJournal of the American Ceramic Society, 2017
Abstract Boron‐rich amorphous boron nitride (B x N 1− x , 0.55 ≤  x  ≤ 0.95) alloys ...
Ayşegül Ö. Çetin, Murat Durandurdu
openaire   +2 more sources

Improved thermal conductivity and AC dielectric breakdown strength of silicone rubber/BN composites

open access: yesComposites Part C: Open Access, 2020
The present study demonstrates a synergistic effect with the addition of low loading levels of boron nitride filler in silicone rubber that resulted in significant improvement in both ac breakdown strength and thermal conductivity of silicone rubber ...
Maryam Sarkarat   +5 more
doaj   +1 more source

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