An initial survey of the literature produced a list of ceramic materials with properties which made them potential candidates for use in molten-carbonate fuel cell tiles or electrodes. Seven of the materials in the original list were dropped from consideration because of unfavorable thermodynamic properties; four materials were set aside because of high cost, lack of availability, or fabrication difficulties. Thirteen compositions were tested statically at 1000 K in a Li/sub 2/CO/sub 3/-K/sub 2/CO/sub 3/ bath under a dry CO/sub 2/ atmosphere. Only four of the materials tested showed severe degradation reactions in the molten carbonate. A low-temperature process for forming small diameter, high-aspect ratio ceramic fibers for fuel cell use has been developed. A short-term program to initiate a computer study on the thermodynamic analysis of fuel cell materials was initiated at Montana State University. The report on this program is included as Appendix B. The MHD and high-temperature fuel cell literature was surveyed, and material properties were evaluated to identify MHD materials with potential use for fuel cell applications. A technology transfer report of these findings was prepared. This report is included as Appendix A. Laboratory facilities were established to conduct research on interfacial diffusion processes which could …

Photograph used for a story in the Oklahoma Times newspaper. Caption: "As bidders crowd around the auctioneer during Del City's annual city auction held Saturday, rows of unclaimed bicycles wait their turn on the block."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The first tires will be rolling off the production line early next year when construction of a new $180 million Goodyear radial tire plant is completed in west Lawton."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Burl Millsap, one of the master repairmen left, tolls over a saxophone he is rebuilding."

As part of the Jet Propulsion Laboratory's Low-Cost Solar Array Project, test methods have been evaluated and procedures developed for testing photovoltaic flat-plate solar cell modules for resistance to impact by hailstones. Testing has included the use of simulated hailstones (frozen ice spheres projected at terminal velocity), steel balls, and other projectile types applied with three loading methods: pneumatic gun, gravity drop, and static loading. Results are presented that compare the advantages and disadvantages of the three test methods. Dropped-steel-ball tests are shown to exhibit little correlation with high-velocity ice-ball tests, whereas statically-loaded steel balls show a somewhat better correlation with ice-ball tests. Results are also presented on the hail impact strength of 16 flat-plate photovoltaic modules. The module designs tested have been shown to be capable of withstanding as large as 1-1/2-inch diameter and not capable of withstanding as small as 1/2-inch diameter simulated hail. The top surface material of the modules has a dominant influence on the hail impact resistance of the modules. In order of increasing impact strength for a given thickness, the top surface materials encountered in the modules tester were: clear silicone rubber, annealed glass, tempered glass, and acrylic sheet. The critical failure mechanism of …

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Mass spectrometric studies of molten silicon in contact with mullite and x = 0.75 ..beta..' Sialon show that the vapor pressures of Si, Si0, Al, and Al/sub 2/0 species are very similar. In both cases the oxygen solubility is extremely low, but the aluminium content of the silicon is higher for the mullite--silicon system (3 weight percent), compared with 5000 ppm for the x = 0.75 ..beta..' Sialon. The nitrogen concentration (312 ppm) of the silicon is marginally below that for the Si/sub 3/N/sub 4/--silicon system indicating that the addition of aluminium and oxygen to ..beta.. Si/sub 3/N/sub 4/ does stabilize the nitrogen to some extent. Silicon beryllium oxynitrides were fabricated by hot pressing Si/sub 3/N/sub 4/--BeO-SiO/sub 2/ mixtures using three Si/sub 3/N/sub 4/ powders. Single phase materials were obtained with KBI, Inc. and Sylvania SN502 grade powders, but not with Sylvania SN402 grade powder. Preliminary evaluation of the silicon beryllium oxynitride materials with molten silicon did not reveal any attack of these materials. X = 0.75 ..beta..' Sialon did, however, undergo slight attack. It is suggested that the rate of dissolution of aluminium in molten silicon could be affected by whether the Sialon is used in an inert atmosphere …

The objective of the Vee-Trough/Evacuated Tube Collector (VTETC) Project, undertaken for the DOE Solar Heating and Cooling Branch, was to show how vee-trough concentrators could improve the heat collection capability and reduce the cost of collectors consisting of evacuated tube receivers. The work was carried out in two phases. During the first phase, the VTETC was analyzed rigorously and various mathematical models were developed to calculate the optical performance of the vee-trough concentrators and the thermal performance of the evacuated tube receivers. A test bed was constructed to verify the mathematical analyses and compare reflectors made of back-silvered glass mirror, Alzak, Aluminized Teflon, and Kinglux (an electro polished aluminum reflector). Testing was conducted and data was obtained for the months of April to August 1977. The results of the mathematical analyses, as well as the results from 1977, were reported in DOE/JPL/1024-1, published in January 1978. In the second phase, additional tests were run at temperatures ranging from 80 to 190/sup 0/C (176 to 374/sup 0/F) during the months of April, May, June, and July 1978. The results obtained compared well with theoretical predictions. For the glass mirror reflectors, peak efficiencies, based on aperture area and operating temperatures of 125/sup …

Activities in programs to conduct polymer-waterflood studies are reported. During the period a study was conducted of the Burbank-Bartlesville sand reservoir, located in the north half of the Stanley Stringer Field, Osage County, Oklahoma. Progress in the overall program is summarized in a chart. (JRD)

Solar cells fabricated from HEM cast silicon have yielded up to 15% conversion efficiencies. This has been achieved in spite of using unpurified graphite parts in the HEM furnace and without optimization of material or cell processing parameters. Molybdenum retainers have prevented SiC formation and reduced carbon content by 50%. The oxygen content of vacuum cast HEM silicon is lower than typical Czochralski grown silicon. Impregnation of 45 ..mu..m diamonds into 7.5 ..mu..m copper sheath has shown distortion of the copper layer. However, 12.5 ..mu..m and 15 ..mu..m copper sheath can be impregnated with 45 ..mu..m diamonds to a high concentration. Electroless nickel plating of wires impregnated only in the cutting edge has shown nickel concentration around the diamonds. This has the possibility of reducing kerf. The high speed slicer fabricated can achieve higher speed and longer stroke with vibration isolation. This machine will be used for slicing 3'' and 4'' diameter workpieces.

The feasibility of implementing bias-humidity development testing to determine if field-like failure modes would result is demonstrated. Variables resulting in degradation were separated so causative variables could be identified. The studies were done on silicon solar cell modules from different manufacturers. Following each of the ten-day bias-humidity tests, the modules were examined, photographed, and tested. Limited bias-related changes were observed. (LEW)

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A new OK City restaurant, the Smuggler's Inn, is under construction on S Meridian in the Reno-Meridian motel-restaurant complex."

Handwritten minutes from the October 15, 1978 meeting of the San Antonio chapter of The Links, Inc. Discusses the chapter's correspondence, treasury and budget reports, committee activities, and other business.

Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Photograph used for a story in the Daily Oklahoman newspaper.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Burl Millsap, repairs band instruments, 918 N Hudson."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Burl Millsap, repairs band instruments, 918 N Hudson."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Head woman dancer, Donna Patty, left and veteran male dancer Woogie Watchtaker stand ready in authentic Indian costume to perform."