Finite Element Analysis of the Thermal Runaway in Tungsten Carbide Granular Compacts: Role of the Carbon Surface Nanolayer

Authors

isacco mazo¹ , Barbara Palmieri² , Alfonso Martone² , Michele Giordano² , Alberto Molinari¹ , Vincenzo Sglavo¹

1. University of Trento
2. Institute for Polymers, Composites and Biomaterials, National Research Council of Italy

Conference / event

32nd International Conference on Diamond and Carbon Materials, September 2022 (Lisbon, Portugal)

Poster summary

Analysis of the thermal runaway-driven flash event in tungsten carbide (WC) granular compacts. Finite element analysis (FEM) was implemented to study the heat balance contributing to the flash event of a conductive material like WC. The results obtained from such simulation coupled with the experimental findings confirmed the role of surface chemistry on the activation of flash sintering of materials with a positive temperature coefficient (PTC) for electrical resistivity.

Keywords

flash sintering, tungsten carbide, thermal runaway, finite element analysis, carbon layer, surface chamistry

Research areas

Material Sciences

References

1. I. Mazo, A. Molinari, V. M. Sglavo, Materials & Design, 2022, 213, 110330, Electrical resistance flash sintering of tungsten carbide, https://doi.org/10.1016/j.matdes.2021.110330.
2. I. Mazo, L. Vanzetti, J. Molina-Aldareguia, A. Molinari, V. M. Sglavo, Role of surface carbon nanolayer on the activation of flash sintering in tungsten carbide, http://dx.doi.org/10.2139/ssrn.4201823.

Funding

No data provided

Supplemental files

No data provided

Additional information

Competing interests

No competing interests were disclosed.

Data availability statement

The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.

Creative Commons license

Copyright © 2022 mazo et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.