Sintering and Phosphorescent Properties of Strontium Aluminate (SrAl2O4) Phosphors by Spark Plasma Sintering (特集 粉末プロセスの制御と製品の定量的評価)

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概要

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• Eu2+ and Dy3+ co-doped strontium aluminate (SrAl2O4) phosphors have been considered as strong and lasting phosphorescent eco-materials for chemically stable, safe making and long lasting phosphorescence process without radiation, compared with sulfide phosphors. In this study, Eu2+ and Dy3+ co-doped strontium aluminate (SrAl2O4) phosphors were prepared by spark-plasma sintering (SPS) at 873 K, 1273 K and 1623 K. The structures of Eu2+ and Dy3+ co-doped SrAl2O4 were investigated by X-ray diffraction (XRD), differential thermal analysis-thermo gravimetric analysis (DTA-TG), and shrinkage during the sintering process. It was found that synthesis of SrAl2O4 over 1273 K, two stage shrinkage temperature zone blow 1073 K and over 1573 K. Phosphorescences of Eu2+ and Dy3+ co-doped SrAl2O4 were observed at 450-650 nm.

• 社団法人粉体粉末冶金協会の論文
• 2006-06-15

著者

• HASEZAKI Kazuhiro

  Department of Materials Science, Shimane University

• KITAGAWA Hiroyuki

  Department of Computer Science, Graduate School of Systems and Information Engineering, University o

• ARAKI Hiroshi

  Department of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University

• Hasezaki Kazuhiro

  Department Of Materials Science Shimane University

• Kitagawa Hiroyuki

  Department Of Materials Science Shimane University

• KANEKO Gen-yo

  Department of Materials Science, Shimane University

• YOSHIDA Chika

  Department of Materials Science, Shimane University

• Kitagawa Hiroyuki

  Department Of Computer Science Graduate School Of Systems And Information Engineering University Of

• Yoshida Chika

  Department Of Materials Science Shimane University

• Kaneko Gen-yo

  Department Of Materials Science Shimane University

• Araki Hiroshi

  Department Of Materials Science Shimane University

• Araki Hiroshi

  Department Of Gastroenterology And Hepatology Graduate School Of Medicine Osaka University

• Hasezaki Kazuhiro

  Department Of Materials Science Faculty Of Science And Engineering Shimane University

• HASEZAKI Kazuhiro

  Department of Materials Science, Faculty of Science and Engineering, Shimane University

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