Report on 1992/1993 activities
Abstract
Over the past several years, at least four different techniques have been developed for probing the behavior of homopolymers and block copolymers at surfaces and interfaces. These include neutron reflectivity, grazing incidence x-ray scattering, dynamic secondan, ion mass spectrometry and electron microscopy. In the upcoming year It is proposed to make key uses of these developments to gain a quantitative understanding of the Interfacial behavior of homopolymers and block copolymers. In addition, the newly discovered lower disorder to order phase transition will be investigated further, is the role a surface or an interface plays in influencing the structure and segmental distribution of polymers in the vicinity of an interface. These areas are outlined below.
- Authors:
- Publication Date:
- Research Org.:
- IBM Research Div., San Jose, CA (United States). Almaden Research Center
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 269046
- Report Number(s):
- DOE/ER/45375-T4
ON: DE96012792; TRN: 96:004478
- DOE Contract Number:
- FG03-88ER45375
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: [1996]
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 66 PHYSICS; COPOLYMERS; PHASE TRANSFORMATIONS; MICROSTRUCTURE; INTERFACES; ELECTRON MICROSCOPY; REFLECTIVITY; SCATTERING; ORDER-DISORDER TRANSFORMATIONS; MASS SPECTRA; POLYETHYLENE GLYCOLS; POLYSTYRENE; PMMA
Citation Formats
Russell, T.P. Report on 1992/1993 activities. United States: N. p., 1996.
Web. doi:10.2172/269046.
Russell, T.P. Report on 1992/1993 activities. United States. doi:10.2172/269046.
Russell, T.P. Mon .
"Report on 1992/1993 activities". United States.
doi:10.2172/269046. https://www.osti.gov/servlets/purl/269046.
@article{osti_269046,
title = {Report on 1992/1993 activities},
author = {Russell, T.P.},
abstractNote = {Over the past several years, at least four different techniques have been developed for probing the behavior of homopolymers and block copolymers at surfaces and interfaces. These include neutron reflectivity, grazing incidence x-ray scattering, dynamic secondan, ion mass spectrometry and electron microscopy. In the upcoming year It is proposed to make key uses of these developments to gain a quantitative understanding of the Interfacial behavior of homopolymers and block copolymers. In addition, the newly discovered lower disorder to order phase transition will be investigated further, is the role a surface or an interface plays in influencing the structure and segmental distribution of polymers in the vicinity of an interface. These areas are outlined below.},
doi = {10.2172/269046},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 01 00:00:00 EDT 1996},
month = {Mon Jul 01 00:00:00 EDT 1996}
}
-
In 1992 the Ceramics Division continued to develop a technical program which addresses the needs of U.S. industry. The program is made up of tasks involving standard materials development, construction of evaluated databases, and laboratory research focused on topics relevant to the dominant issues affecting commercialization of advanced ceramics, e.g., processing costs and reliability. Some areas of research were; data activities; powder characterization; surface properties; mechanical properties; electronic materials; optical materials; and materials microstructure characterization.
-
Materials reliability. Technical activities, 1992. (NAS-NRC assessment panel, May 13-14, 1993)
The Materials Reliability Division conducts materials research to improve the quality, reliability, and safety of industrial products and the nation's infrastructure. The authors' research fosters the use of advanced materials in commercial products by improving confidence in their service performance. The authors do this by developing measurement technology for: process control which improves the quality, consistency and producibility of materials; nondestructive evaluation (NDE) which assures the quality of finished materials and products; fitness-for-purpose standards which relate material quality to reliability and safety; and materials evaluation for severe applications, particularly for service at cryogenic temperatures. Early in FY92, the authors reorganizedmore » -
Technical support for geopressured-geothermal well activities in Louisiana; Final report, 1 January 1992--31 December 1993
The US Department of Energy has operated continuous-recording, microearthquake monitoring networks at geopressured-geothermal test well sites since 1980. These microseismic networks were designed to detect microearthquakes indicative of fault activation and/or subsidence that can potentially result from the deep subsurface withdrawal and underground disposal of large volumes of brine during well testing. Seismic networks were established before the beginning of testing to obtain background levels of seismicity. Monitoring continued during testing and for some time after cessation of flow testing to assess any delayed microseismicity caused by the time dependence of stress migration within the earth. No flow testing hasmore » -
[Environmental Hazards Assessment Program annual report, June 1992--June 1993]. Results of the environmental health activities and needs assessment of the South Carolina statewide family practice system for the Environmental Hazards Assessment Program: EHAP Volume 1, No. 1
An activities and needs assessment was conducted to determine what each of the seven family practice residency programs in South Carolina is providing in environmental health education. In addition, this study was designed to determine: what are the barriers to greater emphasis on environmental health in family practice residency programs and, what the basic environmental health educational goals for family practice residency programs should be. -
Flathead Lake Angler Survey; Monitoring Activities for the Hungry Horse Fisheries Mitigation Plan, 1992-1993 Final Report.
A roving creel survey was conducted on Flathead Lake in northwestern Montana from May 17, 1992 to May 19, 1993. The primary objective of the survey was to quantify the baseline fishery and exploitation rates existing prior to Hungry Horse Dam mitigation efforts. Anglers were counted on 308 occasions, comprising 5,618 fishing boats, 515 shore anglers, and 2,191 ice anglers. The party interviews represented 4,410 anglers, made up of 2,613 boat anglers, 787 shore anglers, and 1,010 ice anglers. A total of 47,883 angler days (190,108 angler hours) of pressure and a harvest of 42,979 fish (including lake trout, lakemore »