发明名称 |
Glass composite including dispersed rare earth iron garnet nanoparticles |
摘要 |
Glass/nanoparticle composites are provided which include a glass matrix with a high density of heterologous nanoparticles embedded therein adjacent the outer surfaces of the composite. Preferably, the glass matrix is formed of porous glass and the nanoparticles are yttrium-iron nanocrystals which exhibit the property of altering the polarization of incident electromagnetic radiation; the composites are thus suitable for use in electrooptical recording media. In practice, a glass matrix having suitable porosity is contacted with a colloidal dispersion containing amorphous yttrium-iron nanoparticles in order to embed the nanoparticles within the surface pores of the matrix. The treated glass matrix is then heated under time-temperature conditions to convert the amorphous nanoparticles into a crystalline state while also fusing the glass matrix pores. Nanoparticle loadings on the order of 10<SUP>9 </SUP>nanoparticles/mm<SUP>2 </SUP>of glass surface area are possible, allowing construction of recording media having a recordable data density many times greater than conventional media.
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申请公布号 |
US7078071(B2) |
申请公布日期 |
2006.07.18 |
申请号 |
US20040914288 |
申请日期 |
2004.08.10 |
申请人 |
MATSUMOTO YUSHI-SEIYAKU CO., LTD. |
发明人 |
TAKETOMI SUSAMU;SORENSEN CHRISTOPHER M.;KLABUNDE KENNTH J. |
分类号 |
B05D1/24;C03C14/00;G11B5/702;G11B5/84;G11B11/105 |
主分类号 |
B05D1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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