Experimental and thermodynamic considerations of Mg2Si coatings deposited by pack cementation process Articles uri icon

authors

  • STATHOKOSTOPOULOS, D.
  • TSIPAS, SOPHIA ALEXANDRA
  • CHALIAMPALIAS, D
  • PAVLIDOU, E
  • HATZIKRANIOTIS, E
  • PARASKEVOPOULOS, K.M.
  • VOURLIAS, G

publication date

  • January 2017

start page

  • 76

end page

  • 86

volume

  • 101

international standard serial number (ISSN)

  • 0749-6036

electronic international standard serial number (EISSN)

  • 1096-3677

abstract

  • Magnesium disilicide is a narrow gap semiconductor which can be used in several applications such as thermoelectric materials, optoelectronic devices and batteries. It has attracted special attraction because of its low cost and non-toxicity. In the herein examination the formation of this compound is investigated by a simple, one-stage process which is pack cementation. Particularly, the effect of deposition time, activator and donor material concentration was examined. Mg2Si was formed in every case without the presence of other compounds as referred to be present when formed with other coating procedures which have higher cost and are very sophisticated. The examined parameters were found to have effect only on the coating thickness up to a certain value. Moreover, the experimental results confirmed the theoretical thermodynamic calculations performed for this case.

keywords

  • magnesium disilicide; pack cementation; xrd; thermodynamic modeling; scanning electron microscopy; thermoelectric properties; thin-films; electrical-properties; ion batteries; doped mg2si; silicon; growth; mechanism; layers; diffusion