structural properties of adhesives. volume i

to enable primary structures to be adhesively bonded in future aerospace hardware structural response prediction procedures must be improved upon. one task in accomplishing this overall objective is a requirement that a set of standardized adhesive test specifications be formulated. it was the objective of this 'structural properties of a..

plant requirements for manufacture of wire products

the report concerns the cost and economic feasibility of establishing a wire products factory. it is one of a series resulting from overseas technical inquiries on factory operation, management, and engineering. the report is designed to provide only a general picture of the factors that must be considered in establishing and operating a ..

gold plating metallized alumina ceramics

problems with gold plating a metallized ceramic part at the general electric neutron devices department led to a two-fold study. the first part of the study evaluated the production process and resulted in a temporary solution to the problems. the second in-depth part of the study evaluated methods for surface activation, the plating proc..

array automated assembly task, low cost silicon solar array project phase 2. quarterly technical report no. 2, january--march 1978

data were gathered and analysis continued on thirteen process task groups. four tasks were completed. a solar cell test data acquisition system was constructed, which showed that an automated system for collecting data on solar cell electrical performance is very useful and suitable for large-scale production. the application of plasma et..

environmental exposure on thermoplastic adhesives

two thermoplastic polymers (pkxa polysulfone and r-5000 polyphenylsulfone) having high temperature capabilities(+300 f) were evaluated as adhesives for bonding steel and titanium adherends. the pkxa polysulfone adhesive was also evaluated on polyimide/glass composites. chromic acid anodize and sulfuric acid anodize were selected as the su..

cartridge for grouting an anchor element in a hole of a support structure

a grouting cartridge is described for placing in a hole of a support structure. the cartridge is capable of rapidly forming a solid grout about an anchor element where the anchor element is thrust into the hole. the cartridge comprises a frangible outer tubular casing fabricated of plastic or the like and containing a uniform mixture of a..

structure and properties of heat resistant alloys (struktura i svoiestva zaraoprochnie splavov), / structure and properties of heat resistant alloys (struktura i svoiestva zaraoprochnie splavov) --translation

this collection of papers deals with materials used in the aircraft industry. it includes many aspects dealing with the production and fabrication of these materials as well as with their behavior in high temperature service. the bulk of the work deals with surface treatments. most of the research referred to is from the soviet literature

thin film gallium arsenide for low cost photovoltaic solar energy conversion. final report

the liquid phase epitaxial (lpe) growth of thin gaas films on oxide substrates (mgal sub 2 o sub 4 , al sub 2 o sub 3 , beo single crystals and fused quartz) is investigated for low cost solar cells techniques are developed to prepare substrate surfaces and to control nucleation and growth of gaas from as-saturated ga melts. the furnace a..

fabrication and characterization of grafted hydrogel coatings prepared by active-hydrogen techniques for heart-assist devices

the problem of making the engineering properties of plastics used for vascular implants compatible with blood has been approached by coating them with hydrogels. polyacrylamide applied to plastic surfaces by the method of active-hydrogen grafting was evaluated smooth polyacrylamide hydrogel coatings on polypropylene film and vena-cava rin..

hand deburring: a necessity that can be improved

hand deburring is a necessity that many companies perform either on a part-time or a full-time basis. although hand deburring cannot be totally eliminated, an in-depth look at company approaches to this problem can result in significant savings. this paper highlights some of the problem areas and solutions for this facet of deburring. (er..