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.

MASS DETECTION USING SINGLE WALLED BORON NITRIDE NANOTUBE AS A NANOMECHANICAL RESONATOR

NANO ◽  
2012 ◽  
Vol 07 (04) ◽  
pp. 1250029 ◽  
Author(s):  
MITESH B. PANCHAL ◽  
S. H. UPADHYAY ◽  
S. P. HARSHA
Keyword(s):  
Boron Nitride ◽  
Resonant Frequency ◽  
Frequency Shift ◽  
Continuum Mechanics ◽  
Boron Nitride Nanotubes ◽  
Tube Length ◽  
Thin Wall ◽  
Nanomechanical Resonators ◽  
Mass Sensitivity ◽  
Resonant Frequency Shift

The feasibility of the Boron Nitride Nanotubes (BNNTs) as nanomechanical resonators, using continuum mechanics based approach and finite element method (FEM) is illustrated in this paper. Two types of end constraints of single walled boron nitride nanotubes (SWBNNTs), namely cantilevered and bridged are assumed. Analytical formulas based on continuum mechanics are used to examine the mass sensitivity of SWBNNTs considering as a thin wall tubes for both types of end constraints for different lengths and different diameters. The FEM analysis, considering SWBNNT as a transversely anisotropic material is performed and results are compared with the continuum mechanics based approach. The results indicated that the mass sensitivity of SWBNNT-based nanomechanical resonators can reach 10-8fg and a logarithmically linear relationship exists between the resonant frequency and the attached mass, when mass is larger than 10-7fg. The sensitivity of resonant frequency shift to both tube length and diameter has also been demonstrated. It is clear that the change in resonant frequency shift to tube length is more significant than that with the tube diameter and mass sensitivity increases when smaller size nanotube resonators are used in mass sensors. The simulation results based on present FEM found in good agreement with the analytical approach.

Doubly-Clamped Single Walled Boron Nitride Nanotube Based Nanomechanical Resonators: A Computational Investigation of Their Behavior

2012 ◽  
Vol 3 (4) ◽  
Author(s):  
Mitesh B. Panchal ◽  
S. H. Upadhyay
Keyword(s):  
Finite Element ◽  
Boron Nitride ◽  
Resonant Frequency ◽  
Frequency Shift ◽  
Dynamic Behavior ◽  
Added Mass ◽  
Boron Nitride Nanotube ◽  
Landing Position ◽  
Nanomechanical Resonators ◽  
Resonant Frequency Shift

This paper illustrates the dynamic behavior of a doubly-clamped single walled boron nitride nanotube (SWBNNT) as a mass sensor. To this end, a 3-dimensional atomistic model based on molecular structural mechanics is developed such that the proximity of the model to the actual atomic structure of the nanotube is significantly retained. Different types of zigzag and armchair layouts of SWBNNTs are considered with doubly-clamped end constraints. Implementing the finite element simulation approach, the resonant frequency shift based analysis is performed for doubly-clamped end-constraints, for an additional nanoscale mass at the middle of the length, and at the intermediate landing position along the length of the nanotube. The effect of the intermediate landing position of added mass on the resonant frequency shift is analyzed by considering excitations of the fundamental modes of vibration. The finite element method (FEM) based simulation results are validated using the continuum mechanics based analytical results, considering the effective wall thickness of the SWBNNT. The present approach is found to be effectual in terms of dealing with different chiralities, boundary conditions, and the consideration of the added mass to analyze the dynamic behavior of the doubly-clamped SWBNNT based nanomechanical resonators.

AN EFFICIENT FINITE ELEMENT MODEL FOR ANALYSIS OF SINGLE WALLED BORON NITRIDE NANOTUBE-BASED RESONANT NANOMECHANICAL SENSORS

NANO ◽  
2013 ◽  
Vol 08 (01) ◽  
pp. 1350011 ◽  
Author(s):  
MITESH B. PANCHAL ◽  
S. H. UPADHYAY ◽  
S. P. HARSHA
Keyword(s):  
Finite Element ◽  
Boron Nitride ◽  
Resonant Frequency ◽  
Continuum Mechanics ◽  
Element Model ◽  
Added Mass ◽  
Simulation Approach ◽  
Attached Mass ◽  
Resonant Frequency Shift ◽  
Nanomechanical Sensors

In this paper, the dynamics analysis of single walled boron nitride nanotubes (SWBNNT) as a resonant nanomechanical sensor by using the finite element method has been reported. Molecular structural mechanics-based finite element model (FEM) has been developed by using three-dimensional elastic beams and point masses, such that the proximity of the model to the actual atomic structure of nanotube is significantly retained. Different types of armchair layups of SWBNNTs are considered with cantilevered and bridged end constraints. By implementing the finite element simulation approach, the resonant frequency shift-based mass sensitivity analysis is performed for both types of end constraints for considered armchair form of the SWBNNTs with different aspect ratios. For both types of end constraint, continuum mechanics-based analytical formulations, considering effective wall thickness of nanotubes are used to validate the present FEM-based simulation approach. The intermediate landing position of the added mass is analyzed, considering variations in resonant frequency shifts of the different fundamental modes of vibrations for both types of end constraints. The FEM-based simulation results for both types of end constraints found in good agreement with the continuum mechanics-based analytical results for the aspect ratio of range of 9–15. The mass sensitivity limit of 10-1 zg is achieved for SWBNNT-based resonant nanomechanical sensors. The resonant frequency shift for higher-order fundamental vibrational modes become stable as the attached mass moves away from the fixed ends for particular magnitude of attached mass. The present finite element-based approach is found to be effectual in terms of dealing different atomic structures, boundary conditions and consideration of added mass to analyze the dynamic behavior of the SWBNNT-based resonant nanomechanical sensors.

An Extensive Review of Nanotubes Based Mass-Sensors

2021 ◽  
Author(s):  
Dinesh Deshwal ◽  
Anil Kumar Narwal
Keyword(s):  
Boron Nitride Nanotubes ◽  
Biological Applications ◽  
Mass Sensor ◽  
Mass Sensing ◽  
Electromechanical Systems ◽  
Nanomechanical Resonators ◽  
Mass Sensors ◽  
Sensing Applications ◽  
Chemical Inertness ◽  
Non Linear

Abstract Sensors have tremendous demand in Industry because of their properties like sensitiveness, responsiveness, stability, selectiveness, and cost-effectiveness. Therefore, it is a dire need to develop advanced sensing materials and technologies. With the rapid advancement in micro and nanotechnologies in Micro-electromechanical Systems/ Nano-electromechanical Systems (MEMS/NEMS), more emphasis has to develop micro and nanomechanical resonators, having great interest for engineering fields. When MEMS/NEMS resonators are used for advancement in sensors, then they could perform both detection and sensing. Both BNNT and CNT are the strongest lightweight nanomaterials used for mass sensing applications. BNNT contradict to CNT have nontoxic property towards health and environment because of its structural stability and chemical inertness, which makes it more suitable for biological applications. From various studies, the conclusion comes out that the non-linear dynamic behavior of Boron Nitride Nanotubes-based mass sensors has not yet been explored. It is required strongly to study the non-linear conduct of BNNT for designing a better performing mass sensor.

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.

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.

Sign in / Sign up

Export Citation Format

Share Document