Forced outages and boiler unavailability of coal-fired fossil plants is most often caused by fire-side corrosion of boiler waterwalls and tubing. Reliable coatings are required for Ultrasupercritical (USC) application to mitigate corrosion since these boilers will operate at a much higher temperatures and pressures than in supercritical (565 C {at} 24 MPa) boilers. Computational modeling efforts have been undertaken to design and assess potential Fe-Cr-Ni-Al systems to produce stable nanocrystalline coatings that form a protective, continuous scale of either Al{sub 2}O{sub 3} or Cr{sub 2}O{sub 3}. The computational modeling results identified a new series of Fe-25Cr-40Ni with or without 10 wt.% Al nanocrystalline coatings that maintain long-term stability by forming a diffusion barrier layer at the coating/substrate interface. The computational modeling predictions of microstructure, formation of continuous Al{sub 2}O{sub 3} scale, inward Al diffusion, grain growth, and sintering behavior were validated with experimental results. Advanced coatings, such as MCrAl (where M is Fe, Ni, or Co) nanocrystalline coatings, have been processed using different magnetron sputtering deposition techniques. Several coating trials were performed and among the processing methods evaluated, the DC pulsed magnetron sputtering technique produced the best quality coating with a minimum number of shallow defects and the results of …

The cleanup activities of the Hanford tank wastes require stabilization and solidification of the secondary waste streams generated from the processing of the tank wastes. The treatment of these tank wastes to produce glass waste forms will generate secondary wastes, including routine solid wastes and liquid process effluents. Liquid wastes may include process condensates and scrubber/off-gas treatment liquids from the thermal waste treatment. The current baseline for solidification of the secondary wastes is a cement-based waste form. However, alternative secondary waste forms are being considered. In this regard, Ceramicrete technology, developed at Argonne National Laboratory, is being explored as an option to solidify and stabilize the secondary wastes. The Ceramicrete process has been demonstrated on four secondary waste formulations: baseline, cluster 1, cluster 2, and mixed waste streams. Based on the recipes provided by Pacific Northwest National Laboratory, the four waste simulants were prepared in-house. Waste forms were fabricated with three filler materials: Class C fly ash, CaSiO{sub 3}, and Class C fly ash + slag. Optimum waste loadings were as high as 20 wt.% for the fly ash and CaSiO{sub 3}, and 15 wt.% for fly ash + slag filler. Waste forms for physical characterizations were fabricated with no …

None

None

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.

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

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

The National Museum of the Pacific War presents an oral interview with James Sayles. Sayles joined the Navy in March 1944 and received basic training at Camp Farragut. Upon completion, he was shipped to Midway and assigned to the USS Pompon (SS-267), nicknamed “The Peaceful P” because it never found any targets. Sayles enjoyed rest camp on Guam. As punishment for using the officers’ pool, he patrolled Truk for four of the hottest weeks of summer, with no air conditioning and while short on rations. When the war ended, he was immediately shipped home. On the way, he stopped for liberty in Panama City. Once stateside, he joined the Air Force and was commissioned at Loyola University as a junior in the ROTC. Sayles took a compassionate discharge in 1951 to care for his wife after the birth of their third child.

The National Museum of the Pacific War presents an oral interview with Talmage Gilbreath. Gilbreath joined the Army in February of 1942. He was trained as a radio operator in the Signal Corps. Gilbreath was assigned to work in communications aboard merchant marine vessels. He travelled in convoys to Murmansk, England, delivered troops to North Africa and brought back German POWs. Gilbreath was then assigned to a refrigerated ship and tells of delivering food throughout the South Pacific. He stayed in the reserves after the war and eventually became a Master Sargent.

The National Museum of the Pacific War presents an oral interview with James Sayles. Sayles joined the Navy in March 1944 and received basic training at Camp Farragut. Upon completion, he was shipped to Midway and assigned to the USS Pompon (SS-267), nicknamed “The Peaceful P” because it never found any targets. Sayles enjoyed rest camp on Guam. As punishment for using the officers’ pool, he patrolled Truk for four of the hottest weeks of summer, with no air conditioning and while short on rations. When the war ended, he was immediately shipped home. On the way, he stopped for liberty in Panama City. Once stateside, he joined the Air Force and was commissioned at Loyola University as a junior in the ROTC. Sayles took a compassionate discharge in 1951 to care for his wife after the birth of their third child.

The National Museum of the Pacific War presents an oral interview with Talmage Gilbreath. Gilbreath joined the Army in February of 1942. He was trained as a radio operator in the Signal Corps. Gilbreath was assigned to work in communications aboard merchant marine vessels. He travelled in convoys to Murmansk, England, delivered troops to North Africa and brought back German POWs. Gilbreath was then assigned to a refrigerated ship and tells of delivering food throughout the South Pacific. He stayed in the reserves after the war and eventually became a Master Sargent.

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.

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