发明名称 |
GRADED GLASS/CERAMIC/GLASS STRUCTURES FOR DAMAGE RESISTANT CERAMIC DENTAL AND ORTHOPEDIC PROSTHESES |
摘要 |
<p>The present invention provides a functionally graded glass/ceramic/glass sandwich system especially useful in damage resistant, ceramic dental and orthopedic prosthesis. The functionally graded glass/substrate/glass composite structure comprises an outer (aesthetic) 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 or a glass tape is applied to the accessible surfaces of a dense alumina 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 the dense substrate by heating the assembly to temperatures 50 - 700°C below the sintering temperature of the substrate.</p> |
申请公布号 |
WO2008063620(A9) |
申请公布日期 |
2008.07.10 |
申请号 |
WO2007US24208 |
申请日期 |
2007.11.20 |
申请人 |
NEW YORK UNIVERSITY;THOMPSON, VAN, P.;ZHANG, YU;KIM, JAE-WON |
发明人 |
THOMPSON, VAN, P.;ZHANG, YU;KIM, JAE-WON |
分类号 |
A61C13/08;A61C13/083;A61C13/09 |
主分类号 |
A61C13/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|