Preparation and elevated temperature compressive properties of multi-walled carbon nanotube reinforced Ti composites

Feng, Xue; Sui, Jiehe; Feng, Yan; Cai, Weiping

doi:10.1016/j.msea.2009.12.003

Cited by 69 publications

(20 citation statements)

References 22 publications

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“…Recently, CNTs have been widely used as reinforcing materials for metal matrix composites (MMCs). The previous studies indicated the remarkable characteristics of MMCs reinforced with CNTs, such as aluminium [5][6][7], magnesium [8][9][10], copper [11][12] and titanium [13][14][15][16]. Ti and its alloys are also interested as competitive matrix materials because they exhibit high specific strength which is an important factor for weight reduction of the airplane and automotive applications from the viewpoint of energy consumption.…”

Section: Introductionmentioning

confidence: 99%

“…However, the improvement of mechanical properties of commercially pure Ti at elevated temperature is also important because some applications need to use or exposure to high temperature such as exhaust system of airplanes, automotives and power plants [17][18]. Xue et al [16] have reported good compressive properties of Ti/CNTs composite materials at 873 K. However, the tensile properties and hardness of those Ti/CNTs composite materials at elevated temperature have not been studied. In the present study, the commercially pure titanium matrix reinforced with TiC particles and CNTs were prepared by wet processing, and consolidated by spark plasma sintering and hot extrusion as wrought composites.…”

Section: Introductionmentioning

confidence: 99%

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High-temperature properties of extruded titanium composites fabricated from carbon nanotubes coated titanium powder by spark plasma sintering and hot extrusion

Kondoh

Threrujirapapong

Umeda

et al. 2012

Composites Science and Technology

107

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Pure titanium matrix composite reinforced with carbon nanotubes (CNTs) was prepared by spark plasma sintering and hot extrusion via powder metallurgy process.Titanium (Ti) powders were coated with CNTs via a wet process using a zwitterionic surfactant solution containing 1.0, 2.0 and 3.0wt.% of CNTs. In-situ TiC formation via reaction of CNTs with titanium occurred during sintering, and TiC particles were uniformly dispersed in the matrix. As-extruded Ti/TiCs composite rods were annealed at 473 K for 3.6 ks to reduce the residual stress during processing. After annealing process, the tensile properties of the composites were evaluated at room temperature, 473, 573 and 673 K, respectively. Hardness test was also performed at room temperature up to 573 K with a step of 50 K. The mechanical properties of extruded Ti/CNTs composites at elevated temperature were remarkably improved by adding a small amount of CNTs, compared to extruded Ti matrix. These were due to the TiC dispersoids originated from CNTs effectively stabilized the microstructure of extruded Ti composites by their pinning effect. Moreover, the coarsening and growth of Ti grain never occurred even though they were annealed at 573, 673 K for 36 ks and 673 K for 360 ks, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-temperature properties of extruded titanium composites fabricated from carbon nanotubes coated titanium powder by spark plasma sintering and hot extrusion

Kondoh

Threrujirapapong

Umeda

et al. 2012

Composites Science and Technology

107

View full text Add to dashboard Cite

show abstract

“…It is found that reaction between the nanotubes and Ti matrix is promoted by an increment in the sintering temperature [141]. As to CNTs, the mentioned reaction is fast and produces more TiC particles.…”

Section: (B) Cnt-reinforced Ti Matrix Nanocompositesmentioning

confidence: 96%

“…These particles often locate at the boundaries of the sintered powders, provided that the initial CNTs are wrapped by initial Ti powder. It is found that reaction between the nanotubes and Ti matrix is promoted by an increment in the sintering temperature [141]. As to CNTs, the mentioned reaction is fast and produces more TiC particles.…”

Section: (B) Cnt-reinforced Ti Matrix Nanocompositesmentioning

confidence: 96%

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Metallurgical Challenges in Carbon Nanotube-Reinforced Metal Matrix Nanocomposites

Azarniya

Safavi

Sovizi

et al. 2017

Metals

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Abstract:The inclusion of carbon nanotubes (CNTs) into metallic systems has been the main focus of recent literature. The aim behind this approach has been the development of a new property or improvement of an inferior one in CNT-dispersed metal matrix nanocomposites. Although it has opened up new possibilities for promising engineering applications, some practical challenges have restricted the full exploitation of CNTs' unique characteristics. Non-uniform dispersion of CNTs in the metallic matrix, poor interfacial adhesion at the CNT/metal interface, the unfavorable chemical reaction of CNTs with the matrix, and low compactability are the most significant challenges, requiring more examination. The present paper provides a broad overview of the mentioned challenges, the way they occur, and their adverse influences on the physicomechanical properties of CNT-reinforced metal matrix nanocomposites. The suggested solutions to these issues are fully addressed.

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Metal Matrix Nanocomposites Reinforced with Carbon Nanotubes

Koppad

Singh

Ramesh

et al. 2013

Advanced Carbon Materials and Technology

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Preparation and elevated temperature compressive properties of multi-walled carbon nanotube reinforced Ti composites

Cited by 69 publications

References 22 publications

High-temperature properties of extruded titanium composites fabricated from carbon nanotubes coated titanium powder by spark plasma sintering and hot extrusion

High-temperature properties of extruded titanium composites fabricated from carbon nanotubes coated titanium powder by spark plasma sintering and hot extrusion

Metallurgical Challenges in Carbon Nanotube-Reinforced Metal Matrix Nanocomposites

Metal Matrix Nanocomposites Reinforced with Carbon Nanotubes

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