Ignition phenomena and reaction mechanisms of the self-propagating high-temperature synthesis reaction in the Ti+C system

Lee, Wei Chang; Chung, Shyan Lung

doi:10.1007/bf00375253

Cited by 30 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3)-6) For instance, Zarrinfar et al 3) and Choi et al, 4) respectively, reported that the stoichiometry of TiCx was almost identical to the ratio of C/Ti in the reactants, except for C/Ti = 1.0; whereas, Lee et al 5) argued that the stoichiometry of TiCx synthesized from the Ti + C reactants was essentially less than the reactant C/Ti ratio when the reactant C/Ti ratio is in the range of 0.85-1.1. Adach et al, 6) on the other hand, obtained an appreciable amount of free carbon for the C/Ti ratio equaling 0.8 and 1.05 when the carbon fiber (7 μm in diameter and 0.2 mm in length) was used as the carbon source.…”

Section: Introductionmentioning

confidence: 99%

Effect of reactant C/Ti ratio on the stoichiometry of Combustion-synthesized TiCx in Ti-C system

Zou

Jin

Shen

et al. 2009

J. Ceram. Soc. Japan

View full text Add to dashboard Cite

In this study, self-propagating high-temperature synthesis (SHS) of the powder compact consisting of titanium and graphite was used to synthesize titanium carbide (TiCx). The relationship between the C/Ti ratio in the reactants and the stoichiometry of the resultant TiCx phase was investigated. The result showed that when the molar ratio of C to Ti in the reactants increased from 0.6 to 1.2, the stoichiometry of the resultant TiCx phase first increased and then decreased with the maximum value appearing at C/Ti = 1.0, so did the change in the maximum combustion temperature; Furthermore, with an increase in the particle size of graphite, the maximum combustion temperature and the stoichiometry of the resultant TiCx phase decreased. Consequently, the maximum combustion temperature might play a dominating role in determining the final composition of the TiCx phase.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of reactant C/Ti ratio on the stoichiometry of Combustion-synthesized TiCx in Ti-C system

Zou

Jin

Shen

et al. 2009

J. Ceram. Soc. Japan

View full text Add to dashboard Cite

show abstract

“…In the conventional ceramic synthesis processes, reaction between Ti and C cannot occur unless an elevated temperature (higher than 3000 K) or some special synthesis route is used [77,78,79,80]. Such high ignition temperatures approaching the melting point of titanium carbide is hard to obtain and will cause a waste of energy.…”

Section: The Synthesis and Characterization Of Three-dimensional Tmentioning

confidence: 99%

The Synthesis, Structure, Morphology Characterizations and Evolution Mechanisms of Nanosized Titanium Carbides and Their Further Applications

Dong

Qiu

et al. 2019

Nanomaterials

View full text Add to dashboard Cite

It is widely known that the special performances and extensive applications of the nanoscale materials are determined by their as-synthesized structures, especially their growth sizes and morphologies. Hereinto, titanium carbides, which show brilliant comprehensive properties, have attracted considerable attention from researchers. How to give full play to their potentials in the light-weight manufacture, microwave absorption, electromagnetic protection, energy conversion and catalyst areas has been widely studied. In this summarized article, the synthesis methods and mechanisms, corresponding growth morphologies of titanium carbides and their further applications were briefly reviewed and analyzed according to their different morphological dimensions, including one-dimensional nanostructures, two-dimensional nanosheets and three-dimensional nanoparticles. It is believed that through the investigation of the crystal structures, synthesis methods, growth mechanisms, and morphology characterizations of those titanium carbides, new lights could be shed on the regulation and control of the ceramic phase specific morphologies to meet with their excellent properties and applications. In addition, the corresponding development prospects and challenges of titanium carbides with various growth morphologies were also summarized.

show abstract

“…13 It is obvious that the addition of PTFE transforms the slow solid-state reaction of Ti + C → TiC into an instantaneous exothermic reaction. Namely, PTFE could be a good promoter for the exothermic solid state reaction Ti + C → TiC.…”

Section: Mechanism Analysismentioning

confidence: 99%

“…3 In comparison with above carbothermic reduction routes, the solid state synthesis of Ti+C→TiC has attracted increasing attention because of its energy-efficient and zero oxycarbide emission. 3,[9][10][11][12][13] However, previous researches showed that the lowest ignition temperature is 1323 K 13 in the solid state synthesis of Ti + C → TiC by using submicron carbon black powder, but it is still a high reaction temperature. Preliminary mechanical activation may be a good way to lower the initial reaction temperature, [14][15][16] whereas, it is a multi-stage method compared with traditional one stage combustion synthesis route.…”

Section: Introductionmentioning

confidence: 99%

Low-temperature solid state synthesis of TiC from Ti/C elemental powder mixture induced by polytetrafluoroethylene

Wang

Zhang

et al. 2015

Materials Research Innovations

View full text Add to dashboard Cite

In order to significantly reduce the synthesis temperature, polytetrafluoroethylene was employed to induce the solid state synthesis of titanium carbide from elemental reactants. According to differential thermal analysis and X-ray diffraction results, titanium carbide can be synthesised successfully at the temperature as low as 825 K from Ti/C mixture with 3 wt-% polytetrafluoroethylene addition. The field emission scanning electron microscopy image showed that the size of the as-prepared titanium carbide particle was smaller than 150 nm.

show abstract

Ignition phenomena and reaction mechanisms of the self-propagating high-temperature synthesis reaction in the Ti+C system

Cited by 30 publications

References 17 publications

Effect of reactant C/Ti ratio on the stoichiometry of Combustion-synthesized TiCx in Ti-C system

Effect of reactant C/Ti ratio on the stoichiometry of Combustion-synthesized TiCx in Ti-C system

The Synthesis, Structure, Morphology Characterizations and Evolution Mechanisms of Nanosized Titanium Carbides and Their Further Applications

Low-temperature solid state synthesis of TiC from Ti/C elemental powder mixture induced by polytetrafluoroethylene

Contact Info

Product

Resources

About