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CsAlSi/sub 5/O/sub 12/: a possible host for /sup 137/Cs immobilization

Description: CsAlSi/sub 5/O/sub 12/ exhibits more acid resistance than pollucite (CsAlSi/sub 2/O/sub 6/). At pH values of 1.02 and 1.40, the extraction of Cs from CsAlSi/sub 5/O/sub 12/ at 25/sup 0/C was approximately proportional to the square root of leach time. The Cs extraction at 25/sup 0/C varied as (H/sup +/)/sup 0/ /sup 36/ over the pH range of 1 to 6. Also, the Cs extraction in various brines at 300/sup 0/C/30 MPa was comparable with that for pollucite. CsAlSi/sub 5/O/sub 12/ can be crystallized at… more
Date: March 31, 1982
Creator: Adl, T. & Vance, E.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of processng conditions on the reliability of cross-linked polyethylene cable insulation. Progress report

Description: The overall long-term objective of the program remains the determination of the influence of processng on the electrical properties of cross-linked polyethylenes through its effect on morphological variables. Although aimed at an understanding of failure processes in heavy walled insulation, the basic morphological studies are of direct relevance to the many varieties of cross-linked polyethylenes now becoming amongst the most reliable of engineering plastics. There are three basic studies invo… more
Date: January 1, 1982
Creator: Phillips, P.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-resolution x-ray scattering

Description: Beamline and spectrometer instrumentation for high-resolution x-ray scattering at the Stanford Synchrotron Radiation Laboratory is described. The combination of photon intensity at the sample of approx. 10/sup 13/ photons/sec/10 mm/sup 2/ and the momentum-transfer resolution of ..delta..Q approx. 10/sup -4/ A/sup -1/ make this a unique facility. Examples are given of data obtained on two-dimensional phase transitions both in studies of thin (2 molecular layers) liquid-crystal films and rare-gas… more
Date: January 1, 1982
Creator: Moncton, D.E. & Brown, G.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Crystallization of silicon films on glass: a comparison of methods. [Flat panel displays]

Description: The lure of flat panel displays has stimulated much research on the crystallization of silicon films deposited on large-area transparent substrates. In most respects, fused quartz is ideal. It has high purity, thermal shock resistance, and a softening point above the silicon melting temperature. Unfortunately, fused quartz has such a small thermal expansion that the silicon film cracks as it cools. This problem has been attacked by patterning with islands or moats before and after crystallizati… more
Date: 1982~
Creator: Lemons, R. A.; Bosch, M. A. & Herbst, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evolution of the quaternary magmatic system, Mineral Mountains, Utah: Interpretations from chemical and experimental modeling

Description: The evolution of silicic magmas in the upper crust is characterized by the establishment of chemical and thermal gradients in the upper portion of magma chambers. The chemical changes observed in rhyolite magmas erupted over a period of 300,000 years in the Mineral Mountains are similar to those recorded at Twin Peaks, Utah, and in the spatially zoned Bishop Tuff from Long Valley, California. Chemical and fluid dynamic models indicate that cooling of a silicic magma body from the top and sides … more
Date: September 1, 1982
Creator: Nash, W. P. & Crecraft, H. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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