A new series of environment-friendly reddish inorganic pigments based on AFeO_(3)(A=Ln,Y) with high NIR solar reflectance

作     者：Maria Fortuño-Morte Pablo Serna-Gallén Héctor Beltrán-Mir Eloísa Cordoncillo 

作者机构：Departamento de Química Inorgánica y OrgánicaUniversitat Jaume IAv.Sos Baynat s/n12071Castellóde la PlanaSpain 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2021年第7卷第5期

页      面：1061-1073页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Authors thanks the Universitat Jaume I[UJI-B2019-41] the Ministerio de Economía,Industria y Competitividad[MAT2016-80410-P]for financial support 

主　　题：High NIR reflectance Cool pigment Reddish pigment Environment-friendly Coprecipitation 

摘      要：Environment-friendly pigments based on AFeO_(3)(A=La,Pr,Nd,Sm,Gd,Tb,Y or Yb)with high nearinfrared(NIR)reflectance were synthesised by a coprecipitation method at 1200℃.The Rietveld refinement analysis showed single-phase orthorhombic perovskite for all *** pigments,which showed reddish hues,offered good colour stability after mixing these pigments in powder form with siloxane transparent paint and two different *** powderepaint mixtures produced with GdFeO_(3),TbFeO_(3) and YFeO_(3) pigments have the highest NIR solar reflectance,reaching values of R=50%.The temperature shielding studies conducted using TbFeO_(3) pigmentepaint mixture for a roof coating yielded a reduction of 3.2℃ in comparison to a commercial ***,the glazes that were pigmented using GdFeO_(3),TbFeO_(3) and YFeO_(3) compositions also presented the most intense reddish colours.A study of the thermal and chemical stability of the pigment with the highest NIR solar reflectance showed good stability in both *** reddish pigments that were prepared can therefore be good candidates for use in different applications such as cool pigments or pigments for ceramic glazes at high temperatures.