| 发明名称 |
RARE EARTH OXIDE, BASIC CARBONATE, METHOD FOR MANUFACTURING THE SAME, PHOSPHOR AND CERAMIC MATERIAL |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a rare earth element oxide consisting substantially of spherical particles having an average particle size (Fisher diameter) Df measured with a Fisher sub-sieve sizer satisfying 0.7μm<Df<2.0μm and having the particle size De observed by an electron microscope satisfying 0.7μm<De<2.0μm. SOLUTION: By this method, monodispersion spherical rare earth basic carbonates having a uniform particle size ranging from 1.0 to 3.0μm which are conventionally difficult to manufacture, and monodispersion spherical rare earth oxides having a uniform particle size ranging from 0.7 to 2.0μm, and phosphors and ceramics using the oxides as part of or the whole source material can be obtained in a rather easy process.
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| 申请公布号 |
JP2002029741(A) |
申请公布日期 |
2002.01.29 |
| 申请号 |
JP20000203549 |
申请日期 |
2000.07.05 |
| 申请人 |
SHIN ETSU CHEM CO LTD |
发明人 |
WATAYA KAZUHIRO;OYAMA YOSHIYUKI |
| 分类号 |
C04B35/50;C01F17/00;C09K11/08;C09K11/78;(IPC1-7):C01F17/00 |
主分类号 |
C04B35/50 |
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