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3759 |
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New competitive materials for thermoelectrical applications
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Irene G. Cano* / Thermal Spray Centre.CPT. Dpt Materials Science and Engineering. Universitat de Barcelona, Spain David R Vidal / Thermal Spray Centre. CPT. Dpt. Materials Science and Engineering . Universitat de Barcelona, Javier Fernández/ Thermal Spray Centre. CPT. Dpt. Materials Science and Engineering . Universitat de Barcelona, Spain Jose Maria Guilemany/ Thermal Spray Centre. CPT. Dpt. Materials Science and Engineering . Universitat de Barcelona, Spain |
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Thermal spray technology represents a huge and continuous innovation that let to use thermal spray experience from biomedicine to wear improvement. New applications are generated nowadays with the advance in nanomaterials and composites. Into these applications, thermoelectrical applications represent a competitive option in sensors and a booming market in which the cold gas spray has reached a wide interest. New nanostructured composites from Al12Si and carbon nanofibers (CNFs) has been optimized and sprayed by cold gas technology. X-Ray Diffraction (XRD) has been used to evaluate grain size decreasing and Raman spectroscopy to determine CNFs integration. Carbon rate has been quantified by elementary carbon analysis. Scanning Electron Microscopy, tensile assays and pin-on-disk have been used to determine coating thickness and mechanical properties. High thermal electrical properties have been analyzed by two points test. In this paper, Thermal Spray Center has generated nanostructured Al-Si composites functionalized by carbon nanofibers. The possibilities to generate coatings by Cold Gas Spray with thermoelectrical properties have been studied. |