{"id":679,"date":"2021-06-08T08:02:30","date_gmt":"2021-06-08T06:02:30","guid":{"rendered":"https:\/\/funglass.eu\/ssc2021\/?p=679"},"modified":"2021-09-14T14:26:47","modified_gmt":"2021-09-14T12:26:47","slug":"chalcogenide-oxide-hydride-materials-smolik","status":"publish","type":"post","link":"https:\/\/funglass.eu\/ssc2021\/chalcogenide-oxide-hydride-materials-smolik\/","title":{"rendered":"P-10 Solid state synthesis and characterization of La2Ce2O7 powder as a candidate material for thermal barrier coatings"},"content":{"rendered":"<div id=\"call\"><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom: 0px;margin-top: 0px;border-width: 0px 0px 0px 0px;border-color:#eae9e9;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"margin-top:0px;margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-1\" style=\"transform:translate3d(0,0,0);\"><h3>Topic: Advances in solid state materials synthesis, new solids and compounds<\/h3>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:10px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><ul class=\"fusion-checklist fusion-checklist-1\" style=\"font-size:14px;line-height:23.8px;\"><li class=\"fusion-li-item\"><span style=\"background-color:#00c9e2;font-size:12.32px;height:23.8px;width:23.8px;margin-right:9.8px;\" class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-male fas\" style=\"color:#ffffff;\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\" style=\"margin-left:33.6px;\">\n<p>Dr. Ivana PARCHOVIANSK\u00c1<\/p>\n<\/div><\/li><li class=\"fusion-li-item\"><span style=\"background-color:#00c9e2;font-size:12.32px;height:23.8px;width:23.8px;margin-right:9.8px;\" class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-university fas\" style=\"color:#ffffff;\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\" style=\"margin-left:33.6px;\">\n<p>Alexander Dub\u010dek University of Tren\u010d\u00edn\/FunGlass, Slovakia<\/p>\n<\/div><\/li><li class=\"fusion-li-item\"><span style=\"background-color:#00c9e2;font-size:12.32px;height:23.8px;width:23.8px;margin-right:9.8px;\" class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-graduation-cap fas\" style=\"color:#ffffff;\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\" style=\"margin-left:33.6px;\">\n<p>Department of Coating processes<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:40px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-text fusion-text-2\" style=\"transform:translate3d(0,0,0);\"><a href=\"https:\/\/funglass.eu\/ssc2021\/wp-content\/uploads\/2021\/06\/P-10_I1.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\"  data-toolbar=\"bottom\" data-toolbar-fixed=\"off\">P-10_I~1<br\/><\/a>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:40px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-text fusion-text-3\" style=\"transform:translate3d(0,0,0);\"><p><u>I. Parchoviansk\u00e1<sup>*<\/sup><\/u>, M. Parchoviansk\u00fd, A. Nowicka, A. Prnov\u00e1, A. Pakseresht<\/p>\n<p><em>FunGlass, A. Dub\u010dek University of Tren\u010d\u00edn, \u0160tudentsk\u00e1 2, 911 50 Tren\u010d\u00edn, Slovakia<\/em><\/p>\n<p><em><sup>\u00a0*<\/sup><\/em><em> E-mail: <\/em><a href=\"mailto:ivana.parchovianska@tnuni.sk\"><em>ivana.parchovianska@tnuni.sk<\/em><\/a><\/p>\n<p><strong>Keywords:<\/strong> solid-state reaction, lanthanum cerium oxide, TBC<\/p>\n<p style=\"text-align: justify;\">Lanthanum cerium oxide, La<sub>2<\/sub>Ce<sub>2<\/sub>O<sub>7<\/sub> (LC), has attracted increasing interest as a promising material for thermal barrier coatings (TBC) because of its high phase stability and potential capability to be operated above 1250 \u00b0C [1]. Moreover, LC exhibits lower thermal conductivity and higher thermal expansion coefficient than the conventional yttria partially-stabilized zirconia [2]. In this work, LC powder was synthesized by solid-state reaction method using commercial La<sub>2<\/sub>O<sub>3<\/sub> and CeO<sub>2<\/sub> binary oxides. The synthesized LC powder was heat treated at the temperatures of up to 1400 \u00b0C for 6 hours and investigated as a material for TBC applications: powder morphology, chemical composition, crystal structure and thermal stability were systematically studied. Scanning electron microscopy (SEM) of the prepared powder revealed agglomerated structure consisting of finely and uniformly distributed grains with size up to 10 \u00b5m. The fluorite structure of the LC powder after annealing at 1400 \u00b0C was confirmed by X-Ray diffraction analysis (XRD) showing intensive peaks corresponding to the pure La<sub>2<\/sub>Ce<sub>2<\/sub>O<sub>7<\/sub> phase. No additional peaks belonging to La<sub>2<\/sub>O<sub>3<\/sub> were observed, confirming the formation of solid solution of La<sub>2<\/sub>O<sub>3<\/sub> in CeO<sub>2<\/sub>. The thermal behavior of the LC powder was analyzed by differential scanning calorimetry (DSC) in the temperature range of 25 \u00b0C \u2013 1350\u00a0\u00b0C. Neither endothermic nor exothermic peaks were observed from the DSC curve at the tested temperature range, indicating high phase stability of the LC powder and its suitability for TBC applications.<\/p>\n<p><strong>References<\/strong><\/p>\n<p>[1]\u00a0\u00a0 Dehkharghani, A. M. F., Rahimipour, M. R., Zakeri, M. (2020). Crystal Structure and Lattice Parameter Investigation of La<sup>3+<\/sup> Substituted CeO<sub>2<\/sub> in La<sub>x<\/sub>Ce<sub>1-x<\/sub>O<sub>2-X\/2<\/sub> Synthesized by Solid-State Method. <em>Advanced Ceramics Progress, 6<\/em>(1), 43\u201348.<\/p>\n<p>[2]\u00a0\u00a0\u00a0 Zhang, H., Sun, J., Duo, S., Zhou, X., Yuan, J., Dong, S., Yang, X., Zeng, J., Jiang, J., Deng, L., Cao, X. (2019). Thermal and mechanical properties of Ta<sub>2<\/sub>O<sub>5<\/sub> doped La<sub>2<\/sub>Ce<sub>2<\/sub>O<sub>7<\/sub> thermal barrier coatings prepared by atmospheric plasma spraying. <em>Journal of the European Ceramic Society<\/em>, <em>39<\/em>(7), 2379\u20132388.<\/p>\n<p><strong><em>Acknowledgments<\/em><\/strong><\/p>\n<p><em>This work was supported by the VEGA grant no. 1\/0171\/21. This work is a part of dissemination activities of project FunGlass. This project has received funding from the European Union\u00b4s Horizon 2020 research and innovation programme under grant agreement No 739566.<\/em> <em> This paper was also created in the frame of the project Centre for Functional and Surface Functionalized Glass (CEGLASS), ITMS code is 313011R453, operational program Research and innovation, co-funded from European Regional Development Fund.<\/em><\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[7],"tags":[49,48,50],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>P-10 Solid state synthesis and characterization of La2Ce2O7 powder as a candidate material for thermal barrier coatings - 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