TY - JOUR
T1 - Synthesis and characterization of high-entropy (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2(Zr0.75Ce0.25)2O7 nanopowders
AU - Guo, Donghui
AU - Zhou, Feifei
AU - Xu, Baosheng
AU - Wang, Yiguang
AU - Wang, You
N1 - Publisher Copyright:
© 2022 Elsevier Ltd and Techna Group S.r.l.
PY - 2022
Y1 - 2022
N2 - Developing a novel ceramic nanopowder is essential for thermal-sprayed high-performance nanostructured thermal barrier coatings. Recently, high-entropy rare-earth zirconates have been extensively concerned by researchers. In the present work, we synthesized high-entropy (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2(Zr0.75Ce0.25)2O7 (LNSGY) nanopowders by the sol-gel technology. In addition, the LNSGY nanopowders were investigated by X-ray diffraction, Raman spectroscopy and transmission electron microscopy. Results show that LNSGY nanopowders have a typical defective fluorite structure. The average crystalline size of LNSGY nanopowders is approximately 15 nm. Meanwhile, the elemental composition of LNSGY nanopowders presents uniform distribution. This paper lays a foundation for high-performance high-entropy nanostructured feedstocks used for plasma spraying in the future.
AB - Developing a novel ceramic nanopowder is essential for thermal-sprayed high-performance nanostructured thermal barrier coatings. Recently, high-entropy rare-earth zirconates have been extensively concerned by researchers. In the present work, we synthesized high-entropy (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2(Zr0.75Ce0.25)2O7 (LNSGY) nanopowders by the sol-gel technology. In addition, the LNSGY nanopowders were investigated by X-ray diffraction, Raman spectroscopy and transmission electron microscopy. Results show that LNSGY nanopowders have a typical defective fluorite structure. The average crystalline size of LNSGY nanopowders is approximately 15 nm. Meanwhile, the elemental composition of LNSGY nanopowders presents uniform distribution. This paper lays a foundation for high-performance high-entropy nanostructured feedstocks used for plasma spraying in the future.
KW - Defective fluorite structure
KW - High-entropy ceramic
KW - Nanopowders
KW - Rare-earth zirconates
KW - Thermal barrier coatings materials
UR - http://www.scopus.com/inward/record.url?scp=85135525715&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2022.07.207
DO - 10.1016/j.ceramint.2022.07.207
M3 - Article
AN - SCOPUS:85135525715
SN - 0272-8842
JO - Ceramics International
JF - Ceramics International
ER -