Heavily doped high-entropy A2B2O7 pyrochlore
نویسندگان
چکیده
A novel class of high-entropy pyrochlore compounds with multiple elements at the and B site positions (A2B2O7) was successfully obtained. Powders (La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 nominal composition were fabricated from pure metal oxides obtained through a reaction nitrates (for A) chlorides B) sodium hydroxide during solid-state displacement (SSDR). The phase evolution analyzed using XRD method. During thermal treatment ten individual oxides, single created. present study showed that highdensity (98%TD) ceramics hardness 8.1GPa after pressureless sintering 1650 ?C for 4 h. Results Raman Rietveld structural refinement sintered highentropy is characterized by single-phase structure, which investigated in detail.
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ژورنال
عنوان ژورنال: Processing and Application of Ceramics
سال: 2023
ISSN: ['1820-6131', '2406-1034']
DOI: https://doi.org/10.2298/pac2302113m