title: Combinatorial approach to turbine bond coat discovery.
abstract: A nondestructive method for the high-throughput screening of novel bond coat materials has been developed. By using a suite of characterization techniques, including Raman spectroscopy, fluorescence spectroscopy, and X-ray diffraction, a rapid determination of thermally grown oxide phases and their protective capability over a continuous composition spread sample can be obtained. The methodology is validated with the Ni-Al system. The procedure developed in this work results in the rapid identification of bond coat composition regions in which the preferred thermally grown oxide, α-Al2O3, is nucleated thus significantly reducing the amount of phase space that needs to be explored in subsequent studies.
authors.affiliation: SmartState Center for Strategic Approaches to the Generation of Electricity, Department of Chemical Engineering, University of South Carolina , Columbia, South Carolina 29208, United States.
authors.forename: Christopher Jason
authors.initials: CJ
authors.lastname: Metting
authors.forename: Jonathan Kenneth
authors.initials: JK
authors.lastname: Bunn
authors.forename: Ellen
authors.initials: E
authors.lastname: Underwood
authors.forename: Stephen
authors.initials: S
authors.lastname: Smoak
authors.forename: Jason
authors.initials: J
authors.lastname: Hattrick-Simpers
mesh_terms: D020650:Combinatorial Chemistry Techniques; D013050:Spectrometry, Fluorescence; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction