期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 1, 页码 172-181出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta13999a
关键词
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资金
- Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies
- Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231]
- U.S. Department of Energy, Small Business Innovation Research Programs Office through Applied Spectra, Inc.
Al-substituted Li7La3Zr2O12 (LLZO) pellets with a grain size of 100-200 mu m and a relative density of 94% were prepared by conventional solid-state processing at a sintering temperature of 1100 degrees C, 130 degrees C lower than previously reported. Morphological features and the presence of impurities were evaluated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Femtosecond Laser Induced Breakdown Spectroscopy (LIBS) was used to visualize the distribution of impurities. The results suggest that chemical composition of the powder cover strongly affects morphology and impurity formation, and that particle size control is critical to densification. These properties, in turn, strongly affect total ionic conductivity and interfacial resistance of the sintered pellets.
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