title: Accelerated Discovery of Thermoelectric Materials: Combinatorial Facility and High-Throughput Measurement of Thermoelectric Power Factor.
abstract: A series of processes have been developed to facilitate the rapid discovery of new promising thermoelectric alloys. A novel combinatorial facility where elements are wire-fed and laser-melted was designed and constructed. Different sample compositions can be achieved by feeding different element wires at specific rates. The composition of all the samples prepared was tested by energy dispersive X-ray spectroscopy (EDS). Then, their thermoelectric properties (power factor) at room temperature were screened in a specially designed new high-throughput setup. After the screening, the thermoelectric properties can be mapped with the possibility of identifying compositional trends. As a proof-of-concept, a promising thermoelectric ternary system, Al-Fe-Ti, has been identified, demonstrating the capability of this accelerated approach.
authors.affiliation: School of Engineering, Cardiff University , The Parade, Cardiff CF24 3AA, United Kingdom.
authors.forename: Jorge
authors.initials: J
authors.lastname: García-Cañadas
authors.affiliation: College of Engineering & Physical Sciences, The University of Birmingham , Edgbaston, Birmingham B15 2TT, United Kingdom.
authors.forename: Nicholas J E
authors.initials: NJ
authors.lastname: Adkins
authors.affiliation: College of Engineering & Physical Sciences, The University of Birmingham , Edgbaston, Birmingham B15 2TT, United Kingdom.
authors.forename: Stephen
authors.initials: S
authors.lastname: McCain
authors.affiliation: College of Engineering & Physical Sciences, The University of Birmingham , Edgbaston, Birmingham B15 2TT, United Kingdom.
authors.forename: Bastian
authors.initials: B
authors.lastname: Hauptstein
authors.affiliation: School of Engineering, Cardiff University , The Parade, Cardiff CF24 3AA, United Kingdom.
authors.forename: Ashley
authors.initials: A
authors.lastname: Brew
authors.affiliation: European Space Agency , Keplerlaan 1, PO Box 299, 2200 AG Noordwijk, The Netherlands.
authors.forename: David J
authors.initials: DJ
authors.lastname: Jarvis
authors.affiliation: School of Engineering, Cardiff University , The Parade, Cardiff CF24 3AA, United Kingdom.
authors.forename: Gao
authors.initials: G
authors.lastname: Min
mesh_terms: D000497:Alloys; D020650:Combinatorial Chemistry Techniques / Q000379:methods*; D057166:High-Throughput Screening Assays; D007834:Lasers; D008422:Materials Testing; D011210:Power Plants; D013052:Spectrometry, X-Ray Emission; D013696:Temperature; D014025:Titanium / Q000737:chemistry
chemical_list: D000497:Alloys; D014025:Titanium
keywords: combinatorial chemistry; high-throughput; laser processing; power factor; thermoelectric materials