The Effective Elastic Modulus of Laser‐Engineered Composite Boride Coating

Laha, Tapas; Agarwal, Arvind; Dahotre, Narendra B.

doi:10.1002/adem.200500032

Cited by 3 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To the best of our knowledge, all of the work on thermal spraying of CNT-reinforced MMCs has been carried out only by our research group. Plasma spraying, [86][87][88][89] HVOF spraying 87,88 and cold spraying 90 have been successfully demonstrated for the fabrication of CNT-reinforced MMC and ceramic coatings. [91][92][93] Laha et al have studied the feasibility of spraying CNTs with Al powders to form composite coatings.…”

Section: Plasma Spraying and High Velocity Oxy-fuel (Hvof) Sprayingmentioning

confidence: 99%

“…Researchers have tried to incorporate 1-6?5 vol.-%CNTs into a free standing Al-CNT composite structure by the powder metallurgy route 37,63 accompanied by SPS 60 and/or hot deformation. [59][60][61]86,88,145,146,148,158,174 A maximum of 129% increase in the tensile strength has been reported with the addition of 5 vol.-%CNT addition. 60 On the contrary, Salas et al 145 have reported deterioration in hardness in a shock-wave-consolidated Al-5 vol.-%CNT composite.…”

Section: Aluminium-cnt Compositesmentioning

confidence: 99%

See 1 more Smart Citation

Carbon nanotube reinforced metal matrix composites - a review

Bakshi

Lahiri

Agarwal

2010

International Materials Reviews

1,302

505

View full text Add to dashboard Cite

This review summarises the research work carried out in the field of carbon nanotube (CNT) metal matrix composites (MMCs). Much research has been undertaken in utilising CNTs as reinforcement for composite material. However, CNT-reinforced MMCs have received the least attention. These composites are being projected for use in structural applications for their high specific strength as well as functional materials for their exciting thermal and electrical characteristics. The present review focuses on the critical issues of CNT-reinforced MMCs that include processing techniques, nanotube dispersion, interface, strengthening mechanisms and mechanical properties. Processing techniques used for synthesis of the composites have been critically reviewed with an objective to achieve homogeneous distribution of carbon nanotubes in the matrix. The mechanical property improvements achieved by addition of CNTs in various metal matrix systems are summarised. The factors determining strengthening achieved by CNT reinforcement are elucidated as are the structural and chemical stability of CNTs in different metal matrixes and the importance of the CNT/metal interface has been reviewed. The importance of CNT dispersion and its quantification is highlighted. Carbon nanotube reinforced MMCs as functional materials are summarised. Future work that needs attention is addressed.

show abstract

Section: Plasma Spraying and High Velocity Oxy-fuel (Hvof) Sprayingmentioning

confidence: 99%

Section: Aluminium-cnt Compositesmentioning

confidence: 99%

Carbon nanotube reinforced metal matrix composites - a review

Bakshi

Lahiri

Agarwal

2010

International Materials Reviews

1,302

505

View full text Add to dashboard Cite

show abstract

“…The bulk elastic modulus of the ultrasonic cast Al 6061 –WS 2 composites was analytically calculated using continuum micromechanics Hashin–Shtrikman lower bound model. [ 35,36 ] This model is appropriate for isotropic composites reinforced by randomly distributed particles, as observed in the present case (Figure 5). According to this model, the elastic modulus of the composite is given by

E_{normalc} = \frac{E_{normalm} false{E_{normalm} V_{normalm} + E_{normalr} false(V_{normalr} + 1 false) false}}{E_{normalr} V_{normalm} + E_{normalm} false(V_{normalr} + 1 false)}

where E (GPa) is the elastic modulus, V is the volume fraction, and the subscripts c, m, and r stand for composite, matrix, and reinforcement, respectively.…”

Section: Resultsmentioning

confidence: 81%

“…The bulk elastic modulus of the ultrasonic cast Al 6061 -WS 2 composites was analytically calculated using continuum micromechanics Hashin-Shtrikman lower bound model. [35,36] This model is appropriate for isotropic composites reinforced by randomly distributed particles, as observed in the present case (Figure 5). According to this model, the elastic modulus of the composite is given by…”

Section: Analytical Continuum Micromechanics Modelsmentioning

confidence: 75%

Role of Ultrasonic Treatment on Microstructure, Multiscale Mechanical, and Tribological Behavior of 2D Tungsten Disulfide Reinforced Aluminum Composites

et al. 2022

View full text Add to dashboard Cite

This article is the first report on the role of ultrasonic treatment (UST) on microstructural evolution, multiscale mechanical behavior, and tribological response in 2D tungsten disulfide (WS2) reinforced aluminum (Al6061) matrix composites. Delaunay triangulation calculations show that UST for 45 s enables a fourfold enhancement in the dispersion parameter of WS2 reinforcements in the Al6061 matrix from 0.08 to 0.32. Improved WS2 dispersion contributes to higher nucleation density with 52.7% grain refinement efficiency, achieving a fine‐grained Al6061–WS2 composite. The role of UST‐induced 2D reinforcement dispersion on the elastic deformation is established at progressively increasing length scales from individual grains to the bulk composite. It is accomplished by integrating the nanodynamic modulus mapping technique with a finite element modeling framework built on experimentally acquired microstructures and localized elastic moduli. It delineates a directly proportional relationship between UST‐induced dispersion and elastic modulus enhancement at all length scales from 10 to 700 μm. Excellent dispersion of the 2D layered WS2 homogenizes the tribological response of the composite material with a tenfold reduction in the volume of material lost during wear.

show abstract