reports of the research laboratory, asahi glass co., ltd.: volume 28, number 2, 1978

document contains articles on the following subjects: influence of relaxation on migration of ions during ion exchange by electrolysis in glass (text in english); double oblique deposition for multiplexable twisted nematic liquid crystal displays (text in english); measurement of fracture energy of glass fiber reinforced cement composites..

evaluation of high temperature structural adhesives for extended service

the evaluation, selection, and demonstration of structural adhesive systems for supersonic cruise research applications, and establishment of environmental durability of selected systems for up to 20,000 hours is described. ten candidate adhesives were initially evaluated. during screening and evaluation, these candidates were narrowed to..

gaas surface passivation for device applications

this report describes the progress in the fifth six-month period of a program to develop deposited dielectrics for gaas device applications. three applications of the dielectrics have been investigated on this program: (1) isolation of control electrodes, (2) passivation of the gaas surface, and (3) encapsulation of completed circuits. th..

method for the construction of precision linear arrays of optical fibers

a method is described for constructing precision linear arrays of optical fibers. the method provides for retaining both the buffered and bare portions of the fiber in a compact ruggedized unit with optical finishing on the fiber-end faces. the necessary fixturing, components, and techniques are described and illustrated. (era citation 07..

magnetron co-sputtering system for coating icf targets

fabrication of inertial confinement fusion (icf) targets requires deposition of various types of coatings on microspheres. the mechanical strength, and surface finish of the coatings are of concern in icf experiments. the tensile strength of coatings can be controlled through grain refinement, selective doping and alloy formation. we have..

artificial kidneys. 1978-july, 1982 (citations from the ntis data base)

the bibliography cites federally-funded research on the design, engineering, fabrication, and clinical evaluation of hemodialyzers and peritoneal dialyzers. reports are included on microencapsulated systems and absorbents as alternatives to dialysis. (this bibliography contains 108 citations, 19 of which are new entries to the previous ed..

zoological effects of variations in atmospheric oxygen levels

the role of certain gene enzymes in survival in modified atmospheres was examined. chromosome morphology was studied. mortality and life span were measured. equipment to deliver various gas mixtures to the flies was designed and fabricated. to study the gene enzymes a technique called starch gel electrophoresis was needed. equipment and s..

silicon web process development

the silicon web process takes advantage of natural crystallographic stabilizing forces to grow long, thin single crystal ribbons directly from liquid silicon. the ribbon, or web, is formed by the solidification of a liquid film supported by surface tension between two silicon filaments, called dendrites, which border the edges of the grow..

develop, demonstrate, and verify large area composite structural bonding with polyimide adhesives. / adhesively bonding graphite-polyimide structures

the technology required to produce graphite-polyimide structural components with operational capability at 598 k (600 f) is considered. a series of polyimide adhesives was screened for mechanical and physical properties and processibility in fabricating large midplane bonded panels and honeycomb sandwich panels in an effort to fabricate a..

precision heat forming of tetrafluoroethylene tubing

an invention that provides a method of altering the size of tetrafluoroethylene tubing which is only available in limited combination of wall thicknesses and diameter are discussed. the method includes the steps of sliding the tetrafluoroethylene tubing onto an aluminum mandrel and clamping the ends of the tubing to the mandrel by means o..