Refine your search:     
Report No.

Liquid phase sintering of alumina-silica co-doped cerium dioxide CeO$$_{2}$$ ceramics

Vauchy, R.  ; Hirooka, Shun ; Watanabe, Masashi  ; Yokoyama, Keisuke ; Sunaoshi, Takeo*; Yamada, Tadahisa*; Nakamichi, Shinya  ; Murakami, Tatsutoshi 

Pure and low $$alpha$$-Al$$_{2}$$O$$_{3}$$-SiO$$_{2}$$ co-doped ceria specimens were prepared by conventional ceramic processing using powder metallurgy. The effect of co-doping on the microstructural and structural properties of cerium dioxide was investigated by means of optical microscopy, scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The co-addition of alumina and silica promoted liquid phase sintering (LPS) and significantly contributed to grain growth, even in the small concentrations of the present study (1 wt% and 2 wt%). A glassy-look phase precipitated at the grain boundaries, characteristic of liquid phase sintering. The addition of dopants to the formulation greatly enhanced the grain growth process without disturbing the CeO$$_{2}$$ structure.



- Accesses




Category:Materials Science, Ceramics



[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.