SPECIAL NOTICE
A -- TECHNOLOGY/BUSINESS OPPORTUNITY Direct Ink Writing PrintedGradient Composition Glass A technique for preparing optical glass componentswith custom-tailored composition profiles - Image 1.
- Notice Date
- 7/18/2017
- Notice Type
- Special Notice
- NAICS
- 238990
— All Other Specialty Trade Contractors
- Contracting Office
- Department of Energy, Lawrence Livermore National Laboratory (DOE Contractor), Industrial Partnerships & Commercialization, 7000 East Avenue, L-795, Livermore, California, 94550
- ZIP Code
- 94550
- Solicitation Number
- FBO349-17
- Archive Date
- 8/22/2017
- Point of Contact
- Connie L Pitcock, Phone: 925-422-1072
- E-Mail Address
-
pitcock1@llnl.gov
(pitcock1@llnl.gov)
- Small Business Set-Aside
- N/A
- Description
- Sample of Direct Ink Writing Printed Gradient Composition Glass TECHNOLOGY/BUSINESS OPPORTUNITY Direct Ink Writing Printed Gradient Composition Glass A technique for preparing optical glass components with custom-tailored composition profiles Opportunity : Lawrence Livermore National Laboratory (LLNL), operated by the Lawrence Livermore National Security (LLNS), LLC under contract no. DE-AC52-07NA27344 (Contract 44) with the U.S. Department of Energy (DOE), is offering the opportunity to enter into a research partnership to collaborate to further develop this technology and license intellectual property rights to ultimately commercialize this technology. Background : Conventionally, gradients in material compositions are introduced either (1) axially, by fusing together multiple layers containing uniform composition, or (2) radially, by diffusing species (typically small, fast diffusing ions) into or out of rod-shaped silica sol-gels or solids at elevated temperatures. Unfortunately, diffusion-based gradients are limited to symmetric, parabolic profiles and have maximum achievable diameters (in the case of gradient refractive index lenses) of ~20 mm, with most commercial versions being <2 mm in diameter. Introduction of larger, slower diffusing species proves challenging. LLNL's technology uses Direct Ink Writing (DIW) additive manufacturing to introduce the composition gradient into an amorphous, low density form (LDF), which is then heat treated to transparency as a whole structure, thus reducing edge effects. Description : LLNL researchers have developed a method for fabricating active or passive optical glass components, non-optical glass components, and/or glass sensors with custom material composition profiles in 1-, 2-, or 3-dimensions. In this method, DIW additive manufacturing technique is used to print filaments of a rheologically-tuned ink--containing a glass forming species--into a loosely bound, amorphous, low density form (LDF), analogous to a green body in ceramics. DIW inks of different compositions may be blended inline at the print nozzle to achieve the desired material composition at the desired location within the LDF. Once the LDF (e.g. monolith, film, or freeform) has been completely formed, the part is dried to remove residual organics and heat treated to form a transparent glass. The resultant glass part retains the compositional variation that was imparted during printing, and it can be further processed to achieve the desired surface figure, surface flatness, or surface quality via grinding and polishing. Advantages : Livermore's DIW-printed invention enables: (1) The formation of optical or non-optical glass with custom composition profiles that are not achievable by conventional glass processing techniques. ( 2) The introduction of species that cannot be introduced easily by diffusion methods. (3) The creation of glass optics containing custom patterned material properties that are far larger than those achievable by diffusion methods. Potential Applications : LLNL's DIW printing technique can be used to make active or passive optical glass components (e.g. lenses, corrector plates, windows, screens, collectors, waveguides, mirror blanks, sensors, etc.) with specialized compositions and material properties for both commercial or government applications. This technique can be used to introduce ions, molecules, or particles in arbitrary (i.e. custom) locations within the glass components (monoliths, films, or free forms) to achieve spatially varying material properties within the glass, including: absorptivity, transmission, refractive index, dispersion, scatter, electrical conductivity, thermal conductivity, thermal expansion, gain coefficient, glass transition temperature (Tg), melting point, photoemission, fluorescence, chemical reactivity (e.g. etch rate) and density/porosity. D evelopment Status: LLNL has filed a patent application for its Direct Ink Writing Printed Gradient Composition Glass method that has been reduced to practice. Additional references for technology background and context of this invention: Silica glass with tailored refractive index profile using direct-ink-write additive manufacturing (abstract LLNL-ABS-706878 and presentation LLNL-PRES-731470) 3D Printed Transparent Glass (D. T. Nguyen, et al., Adv. Mater. 2017, 29, 1701181. https://doi.org/10.1002/adma.201701181) LLNL-JRNL-720419 A method for preparing optical glass components with custom-tailored composition profiles (LLNL-ABS-685161) Optical Materials and Components by Additive Manufacturing: Gradient index (GRIN) glass (poster LLNL-POST-709144) Rheological Characterization of Colloidal Silica Suspensions for 3D Printing of Optical Glass Monoliths (presentation LLNL-PRES-723093) Novel sol-gel derived SiO 2 -TiO 2 particle systems for direct ink writing compositionally tailored GRIN glasses (presentation LLNL-PRES-728230) LLNL is seeking industry partners with a demonstrated ability to bring such inventions to the market. Moving critical technology beyond the Laboratory to the commercial world helps our licensees gain a competitive edge in the marketplace. All licensing activities are conducted under policies relating to the strict nondisclosure of company proprietary information. Please visit the IPO website at https://ipo.llnl.gov/resources for more information on working with LLNL and the industrial partnering and technology transfer process. Note: THIS IS NOT A PROCUREMENT. Companies interested in commercializing LLNL's Direct Ink Writing Printed Gradient Composition Glass technology should provide a written statement of interest, which includes the following: 1. Company Name and address. 2. The name, address, and telephone number of a point of contact. 3. A description of corporate expertise and facilities relevant to commercializing this technology. Written responses should be directed to: Lawrence Livermore National Laboratory Industrial Partnerships Office P.O. Box 808, L-795 Livermore, CA 94551-0808 Attention: FBO 349-17
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- Record
- SN04583438-W 20170720/170718234442-90e666b1928ed25e3c034932fec01c7c (fbodaily.com)
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