公开(公告)号：US07078071B2

公开(公告)日：2006-07-18

申请号：US10914288

申请日：2004-08-10

申请人： Susamu Taketomi ,  Christopher M. Sorensen ,  Kennth J. Klabunde

发明人： Susamu Taketomi ,  Christopher M. Sorensen ,  Kennth J. Klabunde

IPC分类号： B05D1/24

CPC分类号： G11B11/10582 ,  C03C14/006 ,  C03C2214/16 ,  C03C2214/30 ,  G11B5/702 ,  G11B5/70626 ,  G11B5/84

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 109 nanoparticles/mm2 of glass surface area are possible, allowing construction of recording media having a recordable data density many times greater than conventional media.

摘要翻译： 提供玻璃/纳米颗粒复合材料，其包括嵌入复合材料外表面的高密度异源纳米颗粒的玻璃基质。 优选地，玻璃基体由多孔玻璃形成，并且纳米颗粒是表现出改变入射电磁辐射的极化性质的钇 - 铁纳米晶体; 因此该复合材料适用于电光记录介质。 在实践中，具有合适孔隙率的玻璃基质与含有无定形钇 - 铁纳米颗粒的胶态分散体接触，以将纳米颗粒嵌入基质的表面孔内。 然后将经处理的玻璃基质在时间温度条件下加热以将无定形纳米颗粒转化为结晶状态，同时还熔合玻璃基质孔。 大约10 9纳米颗粒/ mm 2的玻璃表面积的纳米粒子载量是可能的，允许构建具有比常规介质多数倍的可记录数据密度的记录介质。

公开(公告)号：US06790521B1

公开(公告)日：2004-09-14

申请号：US09679856

申请日：2000-10-05

申请人： Susamu Taketomi ,  Christopher M. Sorensen ,  Kennth J. Klabunde

发明人： Susamu Taketomi ,  Christopher M. Sorensen ,  Kennth J. Klabunde

IPC分类号： B32B1700

CPC分类号： G11B11/10584 ,  C03C12/00 ,  C03C14/004 ,  C03C14/006 ,  C03C2214/16 ,  C03C2214/30 ,  G11B5/7315 ,  G11B11/10586 ,  Y10T428/25 ,  Y10T428/252

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 109 nanoparticles/mm2 of glass surface area are possible, allowing construction of recording media having a recordable data density many times greater than conventional media.

摘要翻译： 提供玻璃/纳米颗粒复合材料，其包括嵌入复合材料外表面的高密度异源纳米颗粒的玻璃基质。 优选地，玻璃基体由多孔玻璃形成，并且纳米颗粒是表现出改变入射电磁辐射的极化性质的钇 - 铁纳米晶体; 因此该复合材料适用于电光记录介质。 在实践中，具有合适孔隙率的玻璃基质与含有无定形钇 - 铁纳米颗粒的胶态分散体接触，以将纳米颗粒嵌入基质的表面孔内。 然后将经处理的玻璃基质在时间温度条件下加热以将无定形纳米颗粒转化为结晶状态，同时还熔合玻璃基质孔。 玻璃表面积为10 9纳米颗粒/ mm 2的纳米粒子载量是可能的，允许构建具有比常规介质多数倍的可记录数据密度的记录介质。