Powder metallurgy titanium metal matrix composites reinforced with carbon nanotubes and graphite

Li, Shunfeng; Sun, Bin; Imai, Hisashi; Mimoto, Takanori; Kondoh, Katsuyoshi

doi:10.1016/j.compositesa.2012.12.005

Cited by 209 publications

(76 citation statements)

References 18 publications

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“…Figure 17 shows the microstructure of Ti matrix reinforced with 0.4 wt % CNTs or 0.4 wt % graphite. As clearly seen, higher amounts of TiC dispersoids are present throughout Ti matrix in the MWNTs-reinforced composite (as indicated by white arrows) [142].…”

Section: (B) Cnt-reinforced Ti Matrix Nanocompositesmentioning

confidence: 92%

“…Finally, the relative density of in situ formed TiC dispersoids increases with an increment in the volume fraction of initial CNTs. Thus, the higher the initial CNTs volume fraction, the better the mechanical properties will be [142]. In the case of the way a post heat treatment can affect the mechanical behavior, it is shown that the properties can be degraded upon increasing the post annealing temperature.…”

Section: (B) Cnt-reinforced Ti Matrix Nanocompositesmentioning

confidence: 99%

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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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Section: (B) Cnt-reinforced Ti Matrix Nanocompositesmentioning

confidence: 92%

Section: (B) Cnt-reinforced Ti Matrix Nanocompositesmentioning

confidence: 99%

Metallurgical Challenges in Carbon Nanotube-Reinforced Metal Matrix Nanocomposites

Azarniya

Safavi

Sovizi

et al. 2017

Metals

View full text Add to dashboard Cite

show abstract

“…The bulk density was determined by the Archimedes method. The theoretical density of the composites is considered as 4.51 g/cm 3 (µ Ti = 4.5 g/cm 3 ; µ TiB = 4.54 g/cm 3 ). Phase identification was performed using X-ray diffraction (XRD, D/max 2550, Japan) analysis.…”

Section: Characterization Testsmentioning

confidence: 99%

<i>In Situ</i> Synthesis of TiB/Ti6Al4V Composites Reinforced with Nano TiB through SPS

Cao

Zeng²,

Lu³

et al. 2015

Mater. Trans.

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Titanium matrix composites reinforced with TiB whiskers were in situ synthesized by spark plasma sintering (SPS) at a temperature range of 11731473 K, using a mixture of 6.2 mass% TiB 2 , 4.1 mass% Ti, and 89.7 mass% Ti6Al4V powders. The in-situ synthesis mechanism and the effect of sintering temperature on the sintering microstructure were investigated. The results show that an increase of the sintering temperature causes the relative densities of the composites to increase and the reaction between Ti and TiB 2 to be more complete. Nano-sized TiB reinforcements with a diameter of around 80 nm and fine-grained matrix with an average grain size of 12 µm are obtained after SPSed at 1373 K. Clean and perfect TiB/matrix interfaces without debonding or cracks are obtained during SPS process. Low sintering temperature and short sintering time are believed to be the main reasons for the improved fine-grained microstructure.

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“…Fortunately, the flake powder metallurgy route [8][9][10], which is recently developed to fabricate CNTs/Ti composites, has also proved the possibility for fabrication of GNSs/Ti composites. However, to our knowledge, there have been few reports on the fabrication and actual properties of bulk GNS-based Metal Matrix Composites.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Titanium Metallic Composites Reinforced with Graphene Nanosheets

Zhang¹,

Liang²

2017

dtetr

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Graphene-reinforced titanium matrix powders were successfully synthesized through ball milling and powder metallurgy. The prepared-samples were fabricated for the first time by vacuum arc remelting (VAR). The microstructures were observed by scanning electron microscope (SM) and X-ray diffractometer (XRD). At the same time, the defects and the number of layers of graphene added in titanium alloy were studied by Raman spectroscopy. The results show that this kind of composite material has good physical properties.

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Powder metallurgy titanium metal matrix composites reinforced with carbon nanotubes and graphite

Cited by 209 publications

References 18 publications

Metallurgical Challenges in Carbon Nanotube-Reinforced Metal Matrix Nanocomposites

Metallurgical Challenges in Carbon Nanotube-Reinforced Metal Matrix Nanocomposites

<i>In Situ</i> Synthesis of TiB/Ti6Al4V Composites Reinforced with Nano TiB through SPS

Fabrication of Titanium Metallic Composites Reinforced with Graphene Nanosheets

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