Effect of Mg or Ag addition on the evaporation field of Al

Yasuhiro Aruga, Hidenori Nako, Hidemasa Tsuneishi, Yuki Hasegawa, Hiroaki Tao, Chikara Ichihara, Ai Serizawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

It is known that the distribution of the charge-states as well as the evaporation field shift to higher values as the specimen temperature is decreased at a constant rate of evaporation. This study has explored the effect of Mg or Ag addition on the evaporation field of Al in terms of the charge state distribution of the field evaporated Al ions. The fractional abundance of Al2+ ions with respect to the total Al ions in Al-Mg alloy is lower than that in pure Al, whereas it shows higher level in the Al-Ag alloy at lower temperatures. The temperature dependence of the fractional abundance of Al2+ ions has been also confirmed, suggesting that Al atoms in the Al-Mg alloy need lower evaporation field, while higher field is necessary to evaporate Al atoms in the Al-Ag alloy, compared with pure Al. This tendency is in agreement with that of the evaporation fields estimated theoretically by means of measurements of the work function and calculations of the binding energy of the pure Al, Al-Mg and Al-Ag alloys.

Original languageEnglish
Pages (from-to)31-35
Number of pages5
JournalUltramicroscopy
Volume132
DOIs
Publication statusPublished - 2013 Sep
Externally publishedYes

Fingerprint

Evaporation
evaporation
Ions
ions
Atoms
Binding energy
Temperature
atoms
tendencies
binding energy
temperature dependence
shift
temperature

Keywords

  • Al alloy
  • Atom probe tomography
  • Binding energy
  • Evaporation field
  • Image force model
  • Work function

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electronic, Optical and Magnetic Materials

Cite this

Aruga, Y., Nako, H., Tsuneishi, H., Hasegawa, Y., Tao, H., Ichihara, C., & Serizawa, A. (2013). Effect of Mg or Ag addition on the evaporation field of Al. Ultramicroscopy, 132, 31-35. https://doi.org/10.1016/j.ultramic.2012.10.011

Effect of Mg or Ag addition on the evaporation field of Al. / Aruga, Yasuhiro; Nako, Hidenori; Tsuneishi, Hidemasa; Hasegawa, Yuki; Tao, Hiroaki; Ichihara, Chikara; Serizawa, Ai.

In: Ultramicroscopy, Vol. 132, 09.2013, p. 31-35.

Research output: Contribution to journalArticle

Aruga, Y, Nako, H, Tsuneishi, H, Hasegawa, Y, Tao, H, Ichihara, C & Serizawa, A 2013, 'Effect of Mg or Ag addition on the evaporation field of Al', Ultramicroscopy, vol. 132, pp. 31-35. https://doi.org/10.1016/j.ultramic.2012.10.011
Aruga Y, Nako H, Tsuneishi H, Hasegawa Y, Tao H, Ichihara C et al. Effect of Mg or Ag addition on the evaporation field of Al. Ultramicroscopy. 2013 Sep;132:31-35. https://doi.org/10.1016/j.ultramic.2012.10.011
Aruga, Yasuhiro ; Nako, Hidenori ; Tsuneishi, Hidemasa ; Hasegawa, Yuki ; Tao, Hiroaki ; Ichihara, Chikara ; Serizawa, Ai. / Effect of Mg or Ag addition on the evaporation field of Al. In: Ultramicroscopy. 2013 ; Vol. 132. pp. 31-35.
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AU - Ichihara, Chikara

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AB - It is known that the distribution of the charge-states as well as the evaporation field shift to higher values as the specimen temperature is decreased at a constant rate of evaporation. This study has explored the effect of Mg or Ag addition on the evaporation field of Al in terms of the charge state distribution of the field evaporated Al ions. The fractional abundance of Al2+ ions with respect to the total Al ions in Al-Mg alloy is lower than that in pure Al, whereas it shows higher level in the Al-Ag alloy at lower temperatures. The temperature dependence of the fractional abundance of Al2+ ions has been also confirmed, suggesting that Al atoms in the Al-Mg alloy need lower evaporation field, while higher field is necessary to evaporate Al atoms in the Al-Ag alloy, compared with pure Al. This tendency is in agreement with that of the evaporation fields estimated theoretically by means of measurements of the work function and calculations of the binding energy of the pure Al, Al-Mg and Al-Ag alloys.

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