%0 Journal Article
%T High entropy Sr((Zr0.94Y0.06)0.2Sn0.2Ti0.2Hf0.2Mn0.2)O3£¿x perovskite synthesis by reactive spark plasma sintering
%A Anna Jiang
%A Chunfeng Hu
%A Daoyao Ke
%A Degui Zhu
%A Jian Dong
%A Mattia Biesuz
%A Mauro Bortolotti
%A Michael J. Reece
%A Qiang Xu
%A Salvatore Grasso
%A Shuai Fu
%J Journal of Asian Ceramic Societies
%D 2019
%R https://doi.org/10.1080/21870764.2019.1595931
%X ABSTRACT A rising interest in entropy-stabilized oxides in recent years has been driven by their attractive functional properties. Their synthesis usually requires prolonged exposure at high temperature to promote solid-state diffusion without the application of pressure. In this work, we report the synthesis of a high entropy perovskite, Sr((Zr0.94Y0.06)0.2Sn0.2Ti0.2Hf0.2Mn0.2)O3£¿x, in a relatively short time (minutes instead of hours) using a spark plasma sintering (SPS) furnace. Comparative analysis showed that conventional pressureless sintering at 1500¡ãC for 2 h results in porous materials with large thermodynamically stable pores (tens of ¦Ìm), while SPS processing produces dense materials in a single step by reactive sintering at 1475¡ãC in 9 min. SPS is therefore an attractive route for the production, synthesis and sintering of dense high-entropy oxides
%U https://www.tandfonline.com/doi/full/10.1080/21870764.2019.1595931