Combustion Synthesis of TiC–Fe Composites under the Action of an Electric Field

Feng, Kun; Bai, Chenguang; Yang, Yi; Fang, Ji

doi:10.2355/isijinternational.47.648

Cited by 4 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 7 shows the SEM images of samples heated to 470, 670 and 800uC. 9 A great deal of ,1 mm spherical particles, which are grey in the SEM images and identified as TiC by EDS, are distributed uniformly in the Fe matrix. The average size of the TiC particles becomes bigger when the processing temperature increases.…”

Section: Evolution Of Fe-ti-c System In Heating Process Under Differe...mentioning

confidence: 99%

“…In this process, the whole sample combusts without wave propagation as in a thermal explosion mode. 9,10 To the authors’ knowledge, no report has been found on electric field activated CS of the Fe–Ti–C system except their research group. It was found that the Fe–Ti–C system with the iron content up to 75 wt-% can be synthesised under the action of an electric field, and the ignition temperature is only 735°C.…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Mechanism of combustion synthesis of TiC–Fe composites under the action of an electric field

et al. 2012

View full text Add to dashboard Cite

The combustion synthesis process of the 55 wt-%(TizC)-45 wt-%Fe system was studied under two different fields. The simplex thermal field was provided by differential scanning calorimeter and high temperature X-ray diffraction equipment, while the electric field was generated by a Gleeble thermal simulation instrument. With the aid of an electric field, the system is able to be ignited at 394uC, which is much lower than the ignition temperature of above 920uC required if only a simplex thermal field is used. This is because solid diffusion among reactant atoms could be accelerated at a lower temperature by the coeffect of an electric field and the self-generated thermal field. Microstructure study revealed the formation of instantaneous liquid phase in microzones during combustion. A four step model describing the mechanism for the combustion synthesis of TiC-Fe composites under an electric field is also proposed.

show abstract

Section: Evolution Of Fe-ti-c System In Heating Process Under Differe...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%