Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces

ACS Nano ◽  
2011 ◽  
Vol 5 (9) ◽  
pp. 7362-7368 ◽  
Author(s):  
Dai-Ming Tang ◽  
Cui-Lan Ren ◽  
Xianlong Wei ◽  
Ming-Sheng Wang ◽  
Chang Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Boron Nitride ◽  
Md Simulations ◽  
Boron Nitride Nanotubes ◽  
In Situ Tem ◽  
Strengthening Effect

In situ TEM monitoring of thermal decomposition in individual boron nitride nanotubes

JOM ◽  
2010 ◽  
Vol 62 (4) ◽  
pp. 69-73 ◽  
Author(s):  
Hessam M. Ghassemi ◽  
Chee H. Lee ◽  
Yoke K. Yap ◽  
Reza S. Yassar
Keyword(s):  
Thermal Decomposition ◽  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
In Situ Tem

On the Mechanical Behavior of Boron Nitride Nanotubes

2010 ◽  
Vol 63 (2) ◽  
Author(s):  
H. M. Ghassemi ◽  
R. S. Yassar
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Boron Nitride ◽  
Resonance Method ◽  
Boron Nitride Nanotubes ◽  
Published Data ◽  
Transmission Electron ◽  
Thermal Vibrations ◽  
Bn Nanotubes

Boron nitride (BN) nanotubes have structural and mechanical properties similar to carbon nanotubes and are known to be the strongest insulators. Great interest has been focused on understanding the mechanical properties of BN nanotubes as a function of their structural and physical properties. Yet, the published data have not been reviewed and systematically compared. In this paper, we critically review the mechanical properties of BN nanotubes from both experimental and simulation perspectives. The experimental reports include thermal vibrations, electric induced resonance method, and in situ force measurements inside transmission electron microscopy. The modeling and simulation efforts encompass tight bonding methods and molecular dynamics. Replacing the covalent sp2 bond (C–C) by ionic bond (B–N) results in differences in the mechanical properties of BN nanotubes in comparison to carbon nanotubes. The experimental and computational simulations indicate that BN nanotubes are highly flexible. High necking angles in BN nanotubes are assumed to be correlated with unfavorable bonding in B–B and N–N atoms.

In-situ TEM observation of keV-ion irradiation of single-walled carbon nanotubes and single-walled boron nitride nanotubes

2012 ◽  
Vol 18 (S2) ◽  
pp. 1544-1545
Author(s):  
R. Arenal ◽  
A. Liu
Keyword(s):  
Carbon Nanotubes ◽  
Boron Nitride ◽  
Ion Irradiation ◽  
Single Walled Carbon Nanotubes ◽  
Boron Nitride Nanotubes ◽  
In Situ Tem ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

Radial Mechanical Properties of Single-Walled Boron Nitride Nanotubes

Small ◽  
2011 ◽  
Vol 8 (1) ◽  
pp. 116-121 ◽  
Author(s):  
Meng Zheng ◽  
Xiaoming Chen ◽  
In-Tae Bae ◽  
Changhong Ke ◽  
Cheol Park ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Boron Nitride ◽  
Boron Nitride Nanotubes

Molecular Dynamics Simulation of the Buckling Behavior of Boron Nitride Nanotubes under Uniaxial Compressive Loading

2010 ◽  
Vol 297-301 ◽  
pp. 984-989 ◽  
Author(s):  
S. Ebrahimi-Nejad ◽  
Ali Shokuhfar ◽  
A. Zare-Shahabadi
Keyword(s):  
Boron Nitride ◽  
Compressive Loading ◽  
Pair Potential ◽  
Md Simulations ◽  
Boron Nitride Nanotubes ◽  
Dynamics Simulation ◽  
Buckling Loads ◽  
Buckling Behavior ◽  
Bond Stretching ◽  
Different Diameters

Boron Nitride nanotubes (BNNTs) together with carbon nanotubes (CNTs) have attracted the wide attention of the scientific community and have been considered as promising materials due to their unique structural and physical properties. In this paper, the behavior of BNNTs of different diameters under compressive loading has been studied through molecular dynamic (MD) simulations. We have used a Lennard-Jones pair potential to characterize the interactions between non-bonded atoms and harmonic potentials for bond stretching and bond angle vibrations. Results of the MD simulations determine the critical buckling loads of the BNNTs of various diameters under uniaxial compression, and indicate that for the simulated BNNTs of length L = 6 nm, the critical buckling loads increase by increasing the nanotube diameters.

Strengthening Effect of In-Situ Dispersed Hexagonal Boron Nitride in Ceramic Composites

2006 ◽  
Vol 317-318 ◽  
pp. 163-166
Author(s):  
Guo Jun Zhang ◽  
Hideki Kita ◽  
Naoki Kondo ◽  
Tatsuki Ohji
Keyword(s):  
Grain Size ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
High Strength ◽  
Ceramic Composites ◽  
Strengthening Effect ◽  
Mechanical Shock ◽  
Metallic Particles ◽  
Reactive Hot Pressing

High strength particulate ceramic composites are in general reinforced by strong dispersoids, such as strong ceramic particles (SiC, TiB2, ZrO2, et al) and strong metallic particles (Mo, W, et al). In this work high strength ceramic composites with in-situ synthesized hexagonal boron nitride (h-BN) have been prepared and characterized. As an example, we manufactured mullite-BN composites by reactive hot pressing (RHP) using aluminum borates (9Al2O3·2B2O3 and 2Al2O3·B2O3) and silicon nitride as starting materials. The obtained material RHPed at 1800°C showed a strength of 540 MPa, which was 1.64 times higher than that of the monolithic mullite ceramics. TEM observation revealed that the composite had an isotropic microstructure with a fine mullite matrix grain size of less than 1 μm and a nano-sized h-BN platelets of about 200 nm in length and 60∼80 nm in thickness. The high strength was suggested to be from the reduced matrix grain size and the small toughening effect by the h-BN platelets. In addition, this kind of ceramic composite demonstrates low Young’s modulus that is beneficial to the thermal/mechanical shock resistance, and excellent machinability.

scholarly journals Boron Nitride Nanotubes Enhance Mechanical Properties of Fibers from Nanotube/Polyvinyl Alcohol Dispersions

2021 ◽  
Author(s):  
Joe Farid Khoury ◽  
Jacob Christopher Vitale ◽  
Tanner Lane Larson ◽  
Geyou Ao
Keyword(s):  
Mechanical Properties ◽  
Boron Nitride ◽  
Polyvinyl Alcohol ◽  
Thermal Management ◽  
Boron Nitride Nanotubes ◽  
Protective Fabrics

Effectively translating the promising properties of boron nitride nanotubes (BNNTs) into macroscopic assemblies has vast potential for applications, such as thermal management materials and protective fabrics against hazardous environment. We...

Sign in / Sign up

Export Citation Format

Share Document