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in subjects: "Silicon Oxides"  
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Silica control and materials tests at the Salton Sea geothermal field

Description: The Lawrence Livermore Laboratory maintains and operates a test facility near Niland, California, in the Imperial Valley for field studies on SSGF brine chemistry, scale and solids control, materials, and injection. Recent work in silica control and materials testing is reviewed.
Date: June 7, 1979
Creator: Quong, R.; Harrar, J. E.; McCright, R. D.; Locke, R. D.; Lorensen, L. E. & Tardiff, G. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Damage and fracture in large aperture, fused silica, vacuum spatial filter lenses

Description: Optical damage that results in large scale fracture has been observed in the large, high-fluence, fused-silica, spatial filter lenses on the Nova and Beamlet lasers. In nearly all cases damage occurs on the vacuum side of the lenses and because the vacuum side of the lens is under tensile stress this damage can lead to catastrophic crack growth if the flaw (damage) size exceeds the critical flaw size for SiO{sub 2}. The damaged 52 cm Nova lenses fracture into two and sometimes three large piece… more
Date: July 7, 1995
Creator: Campbell, J.H.; Edwards, G.J. & Marion, J.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Integratible Process for Fabrication of Fluidic Microduct Networks on a Single Wafer

Description: We present a microelectronics fabrication compatible process that comprises photolithography and a key room temperature SiON thin film plasma deposition to define and seal a fluidic microduct network. Our single wafer process is independent of thermo-mechanical material properties, particulate cleaning, global flatness, assembly alignment, and glue medium application, which are crucial for wafer fusion bonding or sealing techniques using a glue medium. From our preliminary experiments, we have … more
Date: September 7, 1999
Creator: Matzke, C. M.; Ashby, C. I.; Bridges, M. M.; Griego, L. & Wong, C. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Process for strengthening silicon based ceramics

Description: A process for strengthening silicon based ceramic monolithic materials and composite materials that contain silicon based ceramic reinforcing phases that requires that the ceramic be exposed to a wet hydrogen atmosphere at about 1400{degrees}C. The process results in a dense, tightly adherent silicon containing oxide layer that heals, blunts, or otherwise negates the detrimental effect of strength limiting flaws on the surface of the ceramic body.
Date: March 7, 1991
Creator: Kim, Hyoun-Ee & Moorhead, A. J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

Rubber Bearings for Down-Hole Pumps

Description: Synopsis of project activity: 1998--Awarded cost share grant from DOE. 1st Qtr 1999--Developed fail safe lubricating system. 2nd Qtr 1999--Performed first large scale test with nitrile based bearings. It failed due to material swelling. Failure was blamed on improper tolerance. 3rd Qtr 1999--Material tests were performed with autoclaves and exposure tests to Casa Diablo fluids. Testing of Viton materials began. Alternate bearing designs were developed to limit risk of improper tolerances. 4th Q… more
Date: September 7, 2005
Creator: Sullivan, Bob
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High power ultrashort pulse lasers

Description: Small scale terawatt and soon even petawatt (1000 terawatt) class laser systems are made possible by application of the chirped-pulse amplification technique to solid-state lasers combined with the availability of broad bandwidth materials. These lasers make possible a new class of high gradient accelerators based on the large electric fields associated with intense laser-plasma interactions or from the intense laser field directly. Here, we concentrate on the laser technology to produce these … more
Date: October 7, 1994
Creator: Perry, Michael D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Technology development for iron Fischer-Tropsch catalysis. Quarterly technical progress report No. 7, April 1, 1996--June 30, 1996

Description: The objective of this research project is to develop the technology for the production of physically robust iron-based Fischer-Tropsch catalysts that have suitable activity, selectivity and stability to be used in the slurry phase synthesis reactor development. The catalysts that are developed shall be suitable for testing in the Advanced Fuels Development Facility at LaPorte, Texas, to produce either low- or high-alpha product distributions. Previous work by the offeror has produced a catalyst… more
Date: August 7, 1996
Creator: Davis, B. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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