Rapid structural mapping of ternary metallic alloy systems using the combinatorial approach and cluster analysis | Zendy

Christian J. Long | Zendy; Jason HattrickSimpers | Zendy; Makoto Murakami | Zendy; R. C. Srivastava | Zendy; Ichiro Takeuchi | Zendy; V. L. Karen | Zendy; X. Li | Zendy

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Rapid structural mapping of ternary metallic alloy systems using the combinatorial approach and cluster analysis

Author(s) -

Christian J. Long,

Jason HattrickSimpers,

Makoto Murakami,

R. C. Srivastava,

Ichiro Takeuchi,

V. L. Karen,

X. Li

Publication year - 2007

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.2755487

Subject(s) - ternary operation , cluster (spacecraft) , sort , alloy , phase diagram , materials science , spectral line , ternary plot , diagram , computer science , phase (matter) , physics , database , metallurgy , quantum mechanics , astronomy , programming language

We are developing a procedure for the quick identification of structural phases in thin film composition spread experiments which map large fractions of compositional phase diagrams of ternary metallic alloy systems. An in-house scanning x-ray microdiffractometer is used to obtain x-ray spectra from 273 different compositions on a single composition spread library. A cluster analysis software is then used to sort the spectra into groups in order to rapidly discover the distribution of phases on the ternary diagram. The most representative pattern of each group is then compared to a database of known structures to identify known phases. Using this method, the arduous analysis and classification of hundreds of spectra is reduced to a much shorter analysis of only a few spectra.

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