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Determination of the Absorption-Free <italic>k</italic>_ANi Factors for Quantitative Microanalysis of Nickel Base Alloys

1986; Oxford University Press; Linguagem: Inglês

10.1093/oxfordjournals.jmicro.a050585

1477-9986

Zenji Horita, Takeshi Sano, Minoru Nemoto,

Corrosion Behavior and Inhibition

The extrapolation method is applied to the determination of the absorption-free kANI factors, (kANI)0, in thin-film X-ray microanalysis where A=Al(Kα), Ti(Kα), Mo(Kα, Lα), Ta(Lα, Mα) and W(Lα, Mα). The relationships of log kANI vs. tN, and log kANI vs. INI are observed for this determination, where tM is the foil thickness measured by the contamination spot separation method and INI is the characteristic X-ray intensity of NIKα. The theoretical kA factors are calculated to compare with the extrapolated values. The advantages of the extrapolation method and the practical conditions required for the method are described in detail.