Elastic modulus of multiwalled carbon nanotubes reinforced aluminium matrix nanocomposite – A theoretical approach

Kashyap, K. T.; Koppad, Praveennath G.; Puneeth, K.B.; Ram, H.R. Aniruddha; Mallikarjuna, H.M.

doi:10.1016/j.commatsci.2011.03.032

Cited by 41 publications

(16 citation statements)

References 11 publications

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“…[13] It also depends on the processing technique of the composites. [56,207] Although no models directly incorporate the effect of detailed processing parameters in predicting the theoretical Young's modulus, several models were proposed to predict the modulus of elasticity of composites including CNT-reinforced MMCs, [132,[208][209][210] where the volume fraction, stiffness, orientation, dispersion of reinforcement, etc., are the factors considered.…”

Section: Young's Modulusmentioning

confidence: 99%

Carbon Nanotube‐Reinforced Aluminum Matrix Composites

Mohammed

Chen

2019

Adv Eng Mater

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Herein, the investigations conducted in the area of aluminum (Al) matrix composites reinforced with carbon nanotubes (CNTs) are presented. The application of CNT reinforcement in Al alloys is driven by its exceptional chemical and mechanical properties. The critical issues in the processing techniques, challenges in the interfacial mechanisms between the Al matrix and CNTs, and strengthening effects due to the presence of reinforcements are reviewed. The mechanical properties of CNT/Al composites are found to be effectively enhanced with an addition of CNTs even at a small amount. The extent of strength improvements depends mainly on the dispersion of CNTs in the matrix and interfacial bonding between the matrix and CNTs. Limited theoretical modeling can predict the properties of CNT/Al composites to some extent, but without considering the detailed processing parameters. Based on the gaps identified here, future research directions are suggested, including the relationships between the processing parameters and micro-and nanostructures, and multiscale mechanical modeling and simulation, aiming to further understand the strengthening mechanisms and develop advanced CNT-reinforced Al and other metal composites for critical engineering applications.

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Section: Young's Modulusmentioning

confidence: 99%

Carbon Nanotube‐Reinforced Aluminum Matrix Composites

Mohammed

Chen

2019

Adv Eng Mater

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“…Carbon nanotubes (CNTs) are known to have excellent mechanical stiffness and strength [1][2][3]. A review of the computational studies has shown that the CNT elastic modulus can be in the range of 0.5-5.5 TPa [4][5][6]. In an experimental research work, Treacy et al [7] attained the elastic modulus of CNTs ranging from 0.4 to 4.15 TPa with an average of 1.8 TPa.…”

Section: Introductionmentioning

confidence: 99%

A new form of a Halpin–Tsai micromechanical model for characterizing the mechanical properties of carbon nanotube-reinforced polymer nanocomposites

Hassanzadeh-Aghdam

Jamali

2019

Bull Mater Sci

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In the present work, a new form of a Halpin-Tsai (H-T) micromechanical model is proposed to characterize the elastic modulus and tensile strength of carbon nanotube (CNT)-reinforced polymer nanocomposites. To this end, three critical factors, including random dispersion, non-straight shape and agglomerated state of the CNTs are appropriately incorporated into the H-T model. A comparison of the model predictions with some experiments on the CNT/polymer nanocomposites serves to verify the applicability of the proposed approach. It is found that the present predictions are in good agreement with the available experimental data. The results clearly reveal that for a more accurate prediction of the mechanical properties of the CNT/polymer nanocomposites, considering the random orientation, waviness and agglomeration of CNTs into the polymer matrix is critically essential. Also, some parametric studies are carried out to show the effects of volume fraction, non-straight shape, aspect ratio, mechanical characteristics and non-uniform dispersion of CNTs as well as matrix properties on the elastic modulus and tensile strength of CNT/polymer nanocomposites. The results reveal that it is necessary to eliminate the agglomeration and use the straight CNTs if the full potential of CNT reinforcement is to be realized.

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“…5 ). Literature values for the elastic modulus of PCL and CNT are 600 MPa 62 and 1 TPa 63 respectively. AFM nanomechanical analysis measures the properties associated with 2 nm depth surface of material, 59 therefore a modulus for approximately 600 MPa was expected in the event of successful PCL-CNT nanocomposites.…”

Section: Resultsmentioning

confidence: 99%