An application of the differential X-ray absorption method to thickness measurement in precipitate-containing Ni3(Al, Ti) and tial compounds

W. H. Tian, Zenji Horita, T. Sano, M. Nemoto

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Abstract

The differential X-ray absorption (DXA) method is applied to the thickness measurement of the two types of intermetallic compound, Ni3(Al, Ti) and TiAl, containing finely dispersed precipitate particles. It is shown that the DXA method is applicable even in the presence of particles with coherent strain fields where it is not possible to use the convergent-beam electron diffraction method. It is proposed that the absorption-free intensity ratio required for the DXA method can be determined using the extrapolation method without knowledge of specimen compositions.

Original languageEnglish
Pages (from-to)811-822
Number of pages12
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume67
Issue number6
DOIs
Publication statusPublished - Jan 1 1993

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Thickness measurement
X ray absorption
Precipitates
precipitates
x rays
Extrapolation
Electron diffraction
Intermetallics
intermetallics
extrapolation
electron diffraction
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

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AU - Tian, W. H.

AU - Horita, Zenji

AU - Sano, T.

AU - Nemoto, M.

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AB - The differential X-ray absorption (DXA) method is applied to the thickness measurement of the two types of intermetallic compound, Ni3(Al, Ti) and TiAl, containing finely dispersed precipitate particles. It is shown that the DXA method is applicable even in the presence of particles with coherent strain fields where it is not possible to use the convergent-beam electron diffraction method. It is proposed that the absorption-free intensity ratio required for the DXA method can be determined using the extrapolation method without knowledge of specimen compositions.

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