GRADED GLASS/ZIRCONIA/GLASS STRUCTURES FOR DAMAGE RESISTANT CERAMIC DENTAL AND ORTHOPEDIC PROSTHESES
    110.
    发明申请
    GRADED GLASS/ZIRCONIA/GLASS STRUCTURES FOR DAMAGE RESISTANT CERAMIC DENTAL AND ORTHOPEDIC PROSTHESES 审中-公开
    用于抗损伤陶瓷牙科和骨科假体的玻璃/锆石/玻璃结构

    公开(公告)号:WO2008060451A3

    公开(公告)日:2008-11-20

    申请号:PCT/US2007023599

    申请日:2007-11-09

    Abstract: The present invention provides a functionally graded glass/ceramic/glass sandwich system for use in damage resistant, ceramic and orthopedic prosthesis. The functionally graded glass/substrate/glass composite structure comprises an outer residual glass layer, a graded glass- ceramic layer, and a dense interior ceramic. The functionally graded glass/substrate/glass composite structure may further comprise a veneer on an exterior surface. The present invention also provides a method for preparing a functionally graded glass/ceramic/glass sandwich system. A powdered glass-ceramic composition is applied to the accessible surfaces of a presintered zirconia substrate to thereby substantially cover the substrate surfaces. The glass of the composition has a CTE similar to that of the substrate material. The glass-ceramic composition is infiltrated into and densifies the substrate by heating the assembly to at least the sintering temperature of the substrate.

    Abstract translation: 本发明提供用于抗损伤,陶瓷和整形外科假体的功能分级玻璃/陶瓷/玻璃夹层系统。 功能梯度玻璃/基材/玻璃复合结构包括外部残余玻璃层,梯度玻璃陶瓷层和致密内部陶瓷。 功能梯度玻璃/基材/玻璃复合结构可以进一步包括外表面上的饰面。 本发明还提供了一种制备功能梯度玻璃/陶瓷/玻璃夹层系统的方法。 将粉末状玻璃 - 陶瓷组合物施加到预烧结氧化锆基材的可接近表面上,从而基本上覆盖基材表面。 该组合物的玻璃具有与基底材料类似的CTE。 通过将组件加热到至少基材的烧结温度,将玻璃 - 陶瓷组合物渗入并使基材致密化。

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