000074853 001__ 74853
000074853 005__ 20190709135509.0
000074853 0247_ $$2doi$$a10.1016/j.ceramint.2017.08.212
000074853 0248_ $$2sideral$$a101862
000074853 037__ $$aART-2017-101862
000074853 041__ $$aeng
000074853 100__ $$0(orcid)0000-0003-3480-398X$$aOliete, Patricia B.$$uUniversidad de Zaragoza
000074853 245__ $$aDirectionally solidified Al2O3-ME3Al5O12 (ME: Y, Er and Yb) eutectic coatings for thermophotovoltaic systems
000074853 260__ $$c2017
000074853 5060_ $$aAccess copy available to the general public$$fUnrestricted
000074853 5203_ $$aSelective emitters for thermophotovoltaic systems consisting of directionally solidified Al2O3-ME3Al5O12 (ME: Y, Er and Yb) eutectic coatings on Al2O3 substrates were produced and characterizated. Coatings were deposited by dip-coating on cylindrical substrates. After sintering, a continuous-wave CO2 laser was used to produce the surface resolidification. The optimization of the processing parameters yielded dense eutectic coatings with good adhesion to the substrate and with 90–200 µm in thickness. All coatings were free of voids and showed a eutectic microstructure consisting of a three dimensional interpenetrated network of Al2O3 and ME3Al5O12. The mechanical properties of the coatings (hardness and fracture toughness) were evaluated by indentation techniques. Thermal emission was studied by heating the rods with a CO2 laser at temperatures between 1000 and 1400 °C. Selective emission was observed in Er3+ and Yb3+ based coatings and attributed to the electronic transitions of the rare earth ions. Er3+-coatings showed the best emission properties as selective emitters for thermophotovoltaic converters.
000074853 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2013-41045-R$$9info:eu-repo/grantAgreement/ES/UZ/CUD2014-TEC-11
000074853 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000074853 590__ $$a3.057$$b2017
000074853 591__ $$aMATERIALS SCIENCE, CERAMICS$$b2 / 27 = 0.074$$c2017$$dQ1$$eT1
000074853 592__ $$a0.784$$b2017
000074853 593__ $$aCeramics and Composites$$c2017$$dQ1
000074853 593__ $$aElectronic, Optical and Magnetic Materials$$c2017$$dQ1
000074853 593__ $$aSurfaces, Coatings and Films$$c2017$$dQ1
000074853 593__ $$aProcess Chemistry and Technology$$c2017$$dQ1
000074853 593__ $$aMaterials Chemistry$$c2017$$dQ1
000074853 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000074853 700__ $$0(orcid)0000-0003-2117-2808$$aLópez-Robledo, Manuel J.
000074853 700__ $$0(orcid)0000-0003-2242-6822$$aPeña, José I.$$uUniversidad de Zaragoza
000074853 700__ $$aSilva, Jorge
000074853 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000074853 773__ $$g43, 18 (2017), 16270-16275$$pCeram. int.$$tCeramics International$$x0272-8842
000074853 8564_ $$s1153557$$uhttps://zaguan.unizar.es/record/74853/files/texto_completo.pdf$$yPostprint
000074853 8564_ $$s8683$$uhttps://zaguan.unizar.es/record/74853/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000074853 909CO $$ooai:zaguan.unizar.es:74853$$particulos$$pdriver
000074853 951__ $$a2019-07-09-11:50:29
000074853 980__ $$aARTICLE