Three dimensional sintered inorganic structures using photopolymerization
US5496682A · kind A · utility
94Cited by
12References
12Claims
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Key dates
| Filing date | Oct 15, 1993 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | Oct 15, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Dense sintered parts of ceramic and/or metallic materials are formed using stereo photolithography. An initial flowable mixture of sinterable inorganic particles, photocurable monomer, photoinitiator and dispersant is flowed over a substrate and cured in a selective pattern. Subsequent layers of the mixture are flowed over the substrate and cured to build a three dimensional body. The body is then fired to produce a dense sintered part. Parts having in excess of 95% of theoretical density can be produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.