Invention Grant
- Patent Title: Method for manufacture of transparent ceramics
- Patent Title (中): 透明陶瓷的制造方法
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Application No.: US12283610Application Date: 2008-09-11
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Publication No.: US07799267B2Publication Date: 2010-09-21
- Inventor: Gary L. Messing , Elizabeth R. Kupp , Sang-Ho Lee , Garnia Y. Juwondo , Adam J. Stevenson
- Applicant: Gary L. Messing , Elizabeth R. Kupp , Sang-Ho Lee , Garnia Y. Juwondo , Adam J. Stevenson
- Applicant Address: US PA University Park
- Assignee: The Penn State Research Foundation
- Current Assignee: The Penn State Research Foundation
- Current Assignee Address: US PA University Park
- Agency: Law Offices of John A. Parrish
- Main IPC: B28B1/00
- IPC: B28B1/00

Abstract:
The disclosed invention relates to a method of manufacture of transparent ceramics such as yttrium aluminum garnet by tape casting. The method entails forming a mixture of ceramic oxide, dispersant and organic solvent, milling the mixture to produce a first slurry, mixing the first slurry with an organic binder and a plasticizer to form a treated slurry, milling the treated slurry to produce milled slurry, tape casting the milled slurry to produce cast tape, drying the cast tape to produce dried tape, stacking portions of dried tape to form an assembly, compressing the assembly to produce a preform, heating the preform to produce a green preform, and sintering the green preform to produce transparent yttrium aluminum garnet. The method may be used to produce a unitary ceramic product having differing transparent sections as well as transparent ceramic product having a dopant gradient across a portion of the thickness of the product.
Public/Granted literature
- US20090108507A1 Method for manufacture of transparent ceramics Public/Granted day:2009-04-30
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