News Column

New Ceramics Data Have Been Reported by Investigators at Chonbuk National University

June 24, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Fresh data on Ceramics are presented in a new report. According to news originating from Jeonju, South Korea, by VerticalNews correspondents, research stated, "Gd-doped ceria nanopowders were synthesized using Radio Frequency (RF) thermal plasma. The powders were prepared by ball-milling Gd2O3 and CeO2 powders of several tens of m in size at the cation ratio of 8:2 and 9:1."

Our news journalists obtained a quote from the research from Chonbuk National University, "The prepared precursors were treated by RF thermal plasma at a plate power level of similar to 140kVA, and then, small-sized powders (similar to 50nm) were retrieved by filtration. Transmission Electron Microscopy, Electron Energy Loss Spectroscopy, and Selected-Area Electron-Diffraction images of the as-synthesized powders showed that Gd atoms were incorporated into the CeO2 particles. In addition, no crystalline peak for Gd2O3 appeared in the X-ray diffraction patterns of the as-synthesized powders, which is attributed to the solid solution of Gd3+ into the CeO2 lattices."

According to the news editors, the research concluded: "Finally, Inductively Coupled Plasma-Optical Emission Spectrometry analysis data revealed relatively small changes within 3at.% in the cation composition between the ball milled powder mixtures and the nanoscale powders prepared from these mixtures."

For more information on this research see: Synthesis of Single-Phase Gd-Doped Ceria Nanopowders by Radio Frequency Thermal Plasma Treatment. Journal of the American Ceramic Society, 2014;97(5):1379-1382. Journal of the American Ceramic Society can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell -; Journal of the American Ceramic Society -

The news correspondents report that additional information may be obtained from M.Y. Lee, Chonbuk National University, High Enthalpy Plasma Res Center, Jeonju 561756, South Korea. Additional authors for this research include M.K. Song, J.S. Kim, J.H. Seo and M.H. Kim.

Keywords for this news article include: Asia, Jeonju, Ceramics, South Korea

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Source: Journal of Technology

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