Results 21 to 30 of about 15,123 (265)

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

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

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

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

Raman Spectroscopy Of Boron Nitride Nanotubes And Boron Nitride — Carbon Composites [PDF]

open access: yesAIP Conference Proceedings, 2005
Boron nitride nanotubes (BN-NT) are topological analoges to single wall carbon nanotubes (SWCNT). We analysed and refined the filling process for SWCNTs and applied it to the BN-NTs. BN-NTs were first annealed in air to open the ends and to remove BN particles. A filling procedure with C60 fullerene via vapour phase was applied.
Hasi, F.   +4 more
openaire   +3 more sources

Nested boron nitride and carbon-boron nitride nanocones

open access: yesMicro & Nano Letters, 2007
In this letter we extend previously established results for nested carbon nanocones to both nested boron nitride and carbon-boron nitride nanocones. Based purely on mechanical principles and classical mathematical modelling techniques, we determine the energetically favourable structures for nested boron nitride and carbon-boron nitride nanocones ...
Baowan, D., Hill, James M
openaire   +3 more sources

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