scholarly journals Synthesis and electrochemical performance of a polymer-derived silicon oxycarbide/boron nitride nanotube composite

RSC Advances ◽  
2017 ◽  
Vol 7 (35) ◽  
pp. 21576-21584 ◽  
Author(s):  
M. A. Abass ◽  
A. A. Syed ◽  
C. Gervais ◽  
G. Singh
Keyword(s):  
Boron Nitride ◽  
Electrochemical Performance ◽  
Boron Nitride Nanotubes ◽  
Silicon Oxycarbide ◽  
Boron Nitride Nanotube ◽  
Electrochemical Applications ◽  
Polymer Derived Ceramic ◽  
New Type

Synthesis of a new type of composite consisting of boron nitride nanotubes (BNNTs) filler in polymer-derived ceramic silicon oxycarbide (SiOC) for electrochemical applications is demonstrated.

Vibration Analysis of Single Walled Boron Nitride Nanotube Based Nanoresonators

2012 ◽  
Vol 3 (3) ◽  
Author(s):  
Mitesh B. Panchal ◽  
S. H. Upadhyay ◽  
S. P. Harsha
Keyword(s):  
Boron Nitride ◽  
Resonant Frequency ◽  
Continuum Mechanics ◽  
Boron Nitride Nanotubes ◽  
Response Analysis ◽  
Published Data ◽  
Boron Nitride Nanotube ◽  
Mass Sensor ◽  
Nanomechanical Resonators ◽  
Mass Sensitivity

In this paper, the vibration response analysis of single walled boron nitride nanotubes (SWBNNTs) treated as thin walled tube has been done using finite element method (FEM). The resonant frequencies of fixed-free SWBNNTs have been investigated. The analysis explores the resonant frequency variations as well as the resonant frequency shift of the SWBNNTs caused by the changes in size of BNNTs in terms of length as well as the attached masses. The performance of cantilevered SWBNNT mass sensor is also analyzed based on continuum mechanics approach and compared with the published data of single walled carbon nanotube (SWCNT) for fixed-free configuration as a mass sensor. As a systematic analysis approach, the simulation results based on FEM are compared with the continuum mechanics based analytical approach and are found to be in good agreement. It is also found that the BNNT cantilever biosensor has better response and sensitivity compared to the CNT as a counterpart. Also, the results indicate that the mass sensitivity of cantilevered boron nitride nanotube nanomechanical resonators can reach 10−23 g and the mass sensitivity increases when smaller size nanomechanical resonators are used in mass sensors.

scholarly journals Highly Ordered Boron Nitride Nanotube Arrays with Controllable Texture from Ammonia Borane by Template-Aided Vapor-Phase Pyrolysis

2008 ◽  
Vol 2008 ◽  
pp. 1-7 ◽  
Author(s):  
Yuting Wang ◽  
Yasunori Yamamoto ◽  
Hajime Kiyono ◽  
Shiro Shimada
Keyword(s):  
Boron Nitride ◽  
Vapor Phase ◽  
Ammonia Borane ◽  
Boron Nitride Nanotubes ◽  
Nanotube Arrays ◽  
Boron Nitride Nanotube ◽  
Ordered Arrays ◽  
Different Temperatures ◽  
Ft Ir ◽  
Temperature Controlled

An efficient approach for the preparation of good-quality boron nitride nanotubes (BNNTs) is developed. BNNTs with specific texture were prepared from ammonia borane (BH3NH3) by vapor-phase pyrolysis with the aid of a template in two independent temperature-controlled furnaces. Two kinds of BNNTs, 200–300 nm wide×60 μm long and 70–80 nm wide×40 μm long, were produced after removal of the templates. The as-produced BNNTs were heated at different temperatures in the range of 1300–1700°C inNH3. FT-IR and XPS results confirmed the formation of BN fromBH3NH3. Ordered arrays of BNNTs without cracks on the surface were seen using microstructural observations. The diameter and length of the BNNTs are controlled using templates with different pore sizes and thickness. The wall thickness of the nanotubes was increased by increasing the number of deposition cycles. The crystallinity of the BNNTs was improved by heating at a high temperature (1700°C) inNH3.

On the vibrational characteristics of single-walled boron nitride nanotubes/polymer nanocomposites: A finite element simulation

2017 ◽  
Vol 31 (22) ◽  
pp. 1750208 ◽  
Author(s):  
S. Rouhi ◽  
R. Ansari ◽  
A. Nikkar
Keyword(s):  
Finite Element ◽  
Boron Nitride ◽  
Polymer Nanocomposites ◽  
Volume Fraction ◽  
Boron Nitride Nanotubes ◽  
Frame Structure ◽  
Boron Nitride Nanotube ◽  
Volume Percentage ◽  
Vibrational Behavior ◽  
Vibrational Characteristics

The finite element method is used here to investigate the vibrational behavior of single-walled boron nitride nanotube/polymer nanocomposites. The polymer matrix is modeled as a continuous media. Besides, nanotubes are modeled as a space-frame structure. It is shown that increasing the length of nanotubes at a constant volume fraction leads to decreasing of the nanocomposite frequency. By investigating the effect of volume percentage on the frequencies of the boron nitride nanotube-reinforced polymer nanocomposites, it is observed that for short nanotubes, the nanocomposites with larger nanotube volume fractions have larger frequencies. Also, through studying the first 10 frequencies of nanocomposites reinforced by armchair and zigzag nanotubes, it is shown that the effect of chirality on the vibrational behavior of nanocomposite is insignificant.

HETEROGENEOUS SOLIDIFICATION OF ALUMINUM ON BORON-NITRIDE NANOTUBE

NANO ◽  
2010 ◽  
Vol 05 (06) ◽  
pp. 361-367
Author(s):  
Y. F. LI ◽  
H. Q. YU ◽  
H. LI ◽  
K. M. LIEW ◽  
X. F. LIU
Keyword(s):  
Molecular Dynamics ◽  
Boron Nitride ◽  
Heterogeneous Nucleation ◽  
Boron Nitride Nanotubes ◽  
Boron Nitride Nanotube ◽  
Hierarchical Nanostructures ◽  
Structural Relevance ◽  
Hollow Cylinders ◽  
Dynamics Simulations ◽  
Internal Potential

Molecular dynamics simulations are carried out to examine the heterogeneous solidification of aluminum solution seeded by foreign boron-nitride nanotubes (BNNTs). The final structure indicates noticeably that Al atoms are concentrated to form incredible hierarchical nanostructures composed of coaxial and equidistant cylindrical shells with the BNNTs as the heterogeneous core. The structures of so-formed Al cylinders show strict structural matching and strong structural relevance with BNNTs. Heterogeneous solidification occurred on BNNTs follows a spiral nucleating mechanism. Heredity effect of these hollow cylinders can be clearly observed during the heterogeneous nucleation. The uniform internal potential field around BNNTs is found to be responsible for the formation of the coaxial cylindrical Al shells.

scholarly journals Electrical properties of O-self-doped boron-nitride nanotubes and the piezoelectric effects of their freestanding network film

RSC Advances ◽  
2018 ◽  
Vol 8 (51) ◽  
pp. 29141-29146 ◽  
Author(s):  
Chuncheng Ban ◽  
Ling Li ◽  
Liuxiao Wei
Keyword(s):  
Electrical Properties ◽  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Boron Nitride Nanotube ◽  
Piezoelectric Effects

Boron-nitride nanotube (BNNT) freestanding network films have been applied in various new fields, such as nanogenerators, nanotransistors, and nano-artificial eardrums.

scholarly journals THE SIZE EFFECT IN MECHANICS PROPERTIES OF BORON NITRIDE NANOTUBE UNDER TENSION

2017 ◽  
Vol 55 (4) ◽  
pp. 475 ◽  
Author(s):  
Danh Truong Nguyen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Boron Nitride ◽  
Size Effect ◽  
Uniaxial Tension ◽  
Axial Stress ◽  
Boron Nitride Nanotubes ◽  
Boron Nitride Nanotube ◽  
Armchair Nanotubes ◽  
The Given

This work aimed at investigating the mechanicals properties of boron nitride nanotubes (BN-NTs) under uniaxial tension using atomic finite element method with Tersoff potential. The zigzag and armchair nanotubes with different length and diameter are considered for researching effect on mechanicals behavior of BN-NTs. It is found that Young’s modulus of BN-NTs are independent of the tubular length, but slightly increase when the diameter go rise. At the given strain, axial stress in the armchair tubes is higher than that in the zigzag ones.

Meso–macro-scale computational analysis of boron nitride nanotube-reinforced aluminium and epoxy nanocomposites: A case study on crack propagation

2020 ◽  
pp. 146442072096142
Author(s):  
Srikant Padmanabhan ◽  
Ankit Gupta ◽  
Gaurav Arora ◽  
Himanshu Pathak ◽  
Ramesh G Burela ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Boron Nitride ◽  
Volume Fraction ◽  
Transversely Isotropic ◽  
Boron Nitride Nanotubes ◽  
Epoxy Composites ◽  
Design Parameters ◽  
Boron Nitride Nanotube ◽  
Macro Scale ◽  
Meso Scale

In this paper, an outline of mean-field homogenization and fracture toughness of boron nitride nanotube-reinforced aluminium and epoxy composites have been presented. The meso-scale material modelling has been achieved using Mori-Tanaka and double inclusion homogenization schemes. To examine the effectiveness of Mori-Tanaka and double inclusion schemes, a comparison has been drawn with the rule of mixture. Meso-scale numerical results of boron nitride nanotube-reinforced aluminium and epoxy composites are presented for various design parameters such as aspect ratio and volume fraction of boron nitride nanotubes. The validation studies of the developed transversely isotropic composites model have been documented with the experiments performed and existing literature. Finally, macro-scale fracture toughness simulations incorporating the transversely isotropic properties have been performed using the domain integral method. It is observed that aluminium and epoxy with elastoplastic and viscoelastic nature, respectively, have shown a significant effect on the fracture properties of the composites.

Thermal properties of polymer‐derived ceramic reinforced with boron nitride nanotubes

2019 ◽  
Vol 102 (12) ◽  
pp. 7584-7593 ◽  
Author(s):  
Yujun Jia ◽  
Tosin D. Ajayi ◽  
Justin Morales ◽  
Md Atiqur Rahman Chowdhury ◽  
Godfrey Sauti ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Polymer Derived Ceramic

scholarly journals Effects of boron nitride nanotube content on waterborne polyurethane–acrylate composite coating materials

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12748-12756
Author(s):  
Yong Joon Lee ◽  
Yunju La ◽  
Ok Sung Jeon ◽  
Hak Ji Lee ◽  
Min Kyoon Shin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Boron Nitride ◽  
Composite Coating ◽  
Chemical Resistance ◽  
Waterborne Polyurethane ◽  
Boron Nitride Nanotubes ◽  
Boron Nitride Nanotube ◽  
Coating Materials ◽  
Polyurethane Acrylate ◽  
Waterborne Polyurethane Acrylate

Composite coating materials consisting of waterborne polyurethane–acrylate (WPUA) and boron nitride nanotubes (BNNTs) showed enhanced mechanical properties, thermal properties and chemical resistance.

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