Growth of TiC octahedron obtained by self-propagating reaction

Song, Mou Sheng; Huang, Bin; Huo, Yanqiu; Zhang, S.G.; Zhang, M.X.; Hu, Qiao; Li, J.G.

doi:10.1016/j.jcrysgro.2008.10.065

Cited by 51 publications

(44 citation statements)

References 27 publications

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“…As shown in Fig. 1(a), products obtained when the maximum temperature is detected have been reported to contain high proportions of TiC x metastable phase, with a deficit of carbon [43]. This will produce a highly Raman active signal associated with metastable TiC x .…”

Section: Resultsmentioning

confidence: 91%

Early stages of phase formation before the ignition peak during mechanically induced self-propagating reactions (MSRs) of titanium and graphite

2016

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Section: Resultsmentioning

confidence: 91%

Early stages of phase formation before the ignition peak during mechanically induced self-propagating reactions (MSRs) of titanium and graphite

2016

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“…The surfaces oxidised with the 50 sccm flow rate had diameters typically of 200-300 nm and were much shorter than the 300 sccm nanospikes. These columnar-shaped structures did however have sharp edges and pyramid shaped tips, features that was also noted during synthesis of TiC crystals [18], and which may be sufficient for physical damaging of the bacterial cell membrane.…”

Section: E Coli In Vitro Studymentioning

confidence: 86%

Bactericidal nanospike surfaces via thermal oxidation of Ti alloy substrates

Sjöström

Nobbs

2016

Materials Letters

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Highlights Thermal oxidation was used to grow bioinspired nanospikes on Ti alloy. Nanospike dimension and arrangement could be controlled. The method worked on arbitrary shaped Ti alloy surfaces. A 40 % reduction of E. Coli viability was achieved on Ti alloy nanospike surfaces. AbstractWith the aim to fabricate bio-inspired antibacterial nanotopography surfaces, nanospikes with varying dimensions were grown on Ti alloy surfaces using a thermal oxidation method. By controlling the acetone vapour concentration inside the tube furnace, the resulting oxide surface changed from nanocolumn shapes to nanospikes with approximately 20 nm diameters. The nanospikee growth was demonstrated to work on 3D Ti alloy bead surfaces, which means translation of the method to implant surfaces would be possible. Microbiology studies using Escherichia coli. showed that the nanospikes on the Ti alloy surfaces has potential to reduce bacterial viability. More dead bacteria were present on the nanospike surfaces compared to a smooth control and a 40 % reduction of viability was noted in bacterial suspensions incubated with a nanospike surface. It was shown that by annealing the Ti alloy surfaces prior to thermal oxidation, it is possible to grow vertically aligned nanospikes. This could be highly valuable when designing implant surfaces with antimicrobial properties.

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“…Chien et al [25] reported that stress induced the transformation of TiC from cubic to hexagonal structures. A large amount of TiC octahedrons were synthesized by SHS using Al, Ti, C elemental powders [26]. It is also suggested that the morphologies of TiC evolve from octahedron to cuboctahedron and finally to sphere with the increase in the combustion temperature [12].…”

Section: Discussion About the Growth Mechanism Of Ticmentioning

confidence: 99%

“…As to the growth mechanism of TiC, several models have been proposed to explain the formation of hexagonal, octahedral and spherical TiC [12,26,27]. However, there has been no report about the influence of B on the growth mechanism of TiC.…”

Section: Discussion About the Growth Mechanism Of Ticmentioning

confidence: 99%