Applicability of the Kissinger's formula and comparison with the McNabb-Foster model in simulation of thermal desorption spectrum

Fu Gao Wei, Masato Enomoto, Kaneaki Tsuzaki

研究成果: Contribution to journalArticle査読

29 被引用数 (Scopus)

抄録

The Kissinger's formula has been analyzed theoretically and numerically to be applicable in simulation of not only the detrapping-controlled thermal desorption but also the diffusion-controlled thermal desorption provided that a sufficient pre-exposure before thermal desorption is carried out in the diffusion-controlled desorption. The desorption activation energy or the binding energy can be evaluated by a single thermal desorption spectrum from a single type of trap site. In the case of detrapping-controlled desorption the constant parameter A in the Kissinger's formula approaches the pre-exponential factor of detrap parameter, p0, in the McNabb-Foster model as specimen size becomes smaller. In the case of diffusion-controlled desorption where local equilibrium may be maintained and an effective diffusivity can be expressed, the A value changes according to A = α2D0 where D 0 is the pre-exponential factor of effective diffusivity and α is a geometrical parameter of specimen.

本文言語英語
ページ(範囲)322-330
ページ数9
ジャーナルComputational Materials Science
51
1
DOI
出版ステータス出版済み - 1 1 2012
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 化学 (全般)
  • コンピュータ サイエンス(全般)
  • 物理学および天文学(全般)
  • 計算数学
  • 材料力学

フィンガープリント

「Applicability of the Kissinger's formula and comparison with the McNabb-Foster model in simulation of thermal desorption spectrum」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル