| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluorescent zirconia material. <P>SOLUTION: When a frame 14 is fired at high temperature of 1,300-1,600°C, the flame 14 made of zirconia becomes fluorescent and produces fluorescence upon UV irradiation, since the zirconia material constituting the frame 14 includes Eu<SB>2</SB>O<SB>3</SB>. Accordingly, the frame 14 has traceability function, that is, it produces fluorescence upon irradiation with a UV lamp or a black-light to the surface of section when it is broken, for example. Further, it is excellent in sensuousness because it produces blue fluorescence upon irradiation with a black-light, thereby the part with or without a thin top layer 18 also has fluorescent properties similar to those of the top layer 18. <P>COPYRIGHT: (C)2011,JPO&INPIT |
