2011 Fiscal Year Final Research Report

Development of Ceramic Glaze with Specific Near-infrared Radiation by Doping of Rare-earth Elements for effective Thermophotovoltaic Generation of Electricity

Research Project

Project/Area Number	22760158
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Thermal engineering
Research Institution	Kobe City College of Technology
Principal Investigator	KUMANO Tomoyuki 神戸市立工業高等専門学校, 機械工学科, 准教授 (80435437)
Co-Investigator(Renkei-kenkyūsha)	HANAMURA Katsunori 東京工業大学, 大学院・理工学研究科, 教授 (20172950)
Project Period (FY)	2010 – 2011
Keywords	ふく射 / 希土類元素 / 釉薬
Research Abstract	Ceramic glaze contained erbium was coated on polycrystalline alumina to enhance emittance of the alumina in the wavelength around 1.5. m by means of submerged-substrate method proposed in this study. Spectral distribution of normal emittance of the coated alumina was measured under the condition of the temperature 1273 K. It was revealed that the emittance in the emissive band around 1.5. m increases with the film thickness and content of Er, and then, approaching to the almost maximum value. Furthermore, we succeeded in coating Er-doped ceramic glaze with thickness of 0.05 mm by means of blade coating method.