Characteristics of zirconia nanoparticles prepared by molten salts and microwave synthesis

International Conference on Functional Materials and Nanotechnologies 2013

材料科学;物理学

Grabis, J.^1 ; Jankovica, Dz^1 ; Sokolova, E.^1 ; Steins, I.^1

Institute of Inorganic Chemistry RTU, Miera 34, Salaspils, LV-2169, Latvia^1

关键词: Bulk materials;    Calcination temperature;    Microwave synthesis;    Molten salt;    Relative density;    Zirconia nanoparticles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/49/1/012003/pdf
DOI  :  10.1088/1757-899X/49/1/012003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Zirconia and yttria stabilized zirconia (3YSZ) nanoparticles were prepared from zirconia and yttria salts using molten salts (MS) and microwave (MW) synthesis. The crystalline ZrO2and 3YSZ nanoparticles with crystallite size in the range of 3-27 nm were obtained by MS synthesis in NaCl-NaNO3salts. The zirconia and 3YSZ powders with close characteristics were obtained by combining MW synthesis with calcination of products at 400-800 °C. The crystallite size depends upon synthesis or calcination temperature, and the precursors used. The powders prepared by MS and MW synthesis ensured manufacturing of bulk materials with relative density of 98.6% and 97.2% respectively by using spark plasma sintering at 1300 °C.