Abstract: A method of producing dihydroxy-terminated poly(2,2,3,3,4,4-hexafluoropene-1,5-diol formal) of a desired number average molecular weight by controlling the relative amounts of 1,3-dioxa-5,5,6,6,7,7-hexafluorocyclooctane monomer, 2,2,3,3,4,4-hexafluoropentane-1,5-diol, and the catalyst trifluoromethane sulfonic acid (having a determined activity) used to produce the polymer.

Abstract: 2,4,4,5,5,6,6-heptafluoro-2-trifluoromethyl-3-oxaheptane-1,7-diol polyfor, lHOCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 OCF(CF.sub.3)CH.sub.2 O[CH.sub.2 OCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 OCF(CF.sub.3)CH.sub.2 O].sub.n H,which is prepared by reacting the diol with formaldehyde in 80-90 percent sulfuric acid.

Abstract: An apparatus and method for remotely detecting the presence of chemical ware nerve agents in a suspect thermal cloud. Infrared radiation emitted by a suspect thermal cloud is analyzed by means of a forward looking infrared thermal imager equipped with a spectral filter wheel having four passband filters; three of the spectral filter elements are spectrally optimized to respond to infrared radiation emissions characteristic of chemical warfare nerve agents. The variations in image contrasts of the thermograms generated by selectively filtering the infrared radiation emitted by the suspect thermal cloud are compared to determine the presence or absence of chemical warfare nerve agents in the suspect thermal cloud.

Abstract: A method of producing a metal/ceramic composite structure in which an uncolidated metal or metal alloy powder is loaded into a sealable glass mold comprising a hollow ceramic sleeve and a sealable outer glass envelope surrounding the ceramic sleeve and forming with the outer wall of the ceramic sleeve a sealable chamber for the metal or metal alloy powder, wherein the glass is a type which becomes plastic when heated. The air in the mold is removed under vacuum and the mold is sealed and placed into a free flowing refractory powder in a crucible and consolidated by sintering under atmospheric pressure (CAP.RTM. process). Removal of the glass envelope leaves a composite article having a consolidated metal or metal alloy layer surrounding and placing a hollow ceramic liner (sleeve) under both radial and axial compression. A ceramic-line metal gun barrel insert can be produced by using a ceramic sleeve with rifling on its inner surface.

Abstract: The present invention relates to complementary logic field effect transistors having high electron and hole mobility and above to maintain transistor action at cryogenic temperatures. In one embodiment germanium material is deposited upon a gallium arsenide substrate and high hole concentration areas and high electron concentration areas are created in the germanium layer. In another embodiment a germanium substrate is provided and a gallium arsenide layer is grown upon the germanium substrate with appropriate high hole concentration areas and high electron concentration areas being created within the gallium arsenide.

Abstract: 1:3 "mixed" orthocarbonates of the formula[CF(NO.sub.2).sub.2 CH.sub.2 O].sub.3 C--ORwherein R is--CH.sub.2 C(NO.sub.2).sub.3,--CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3,--CH.sub.2 CH.sub.2 NO.sub.2,--CH.sub.2 C(NO.sub.2).sub.2 CH.sub.2 OH,--CH.sub.2 C(NO.sub.2).sub.2 CH.sub.2 OC[OCH.sub.2 CF(NO.sub.2).sub.2 ].s3,--CH.sub.2 C(NO.sub.2).sub.2 CH.sub.2 OCH.sub.2 OCH.sub.2 C(NO.sub.2).sub.2 CH.sub.2 OH,--CH.sub.2 C(NO.sub.2).sub.2 CH.sub.2 OCH.sub.2 OCH.sub.2 C(NO.sub.2).sub.2 CH.sub.2 OC[OCH.sub.2 CF(NO.sub.2).sub.2 ].sub.3,--CH.sub.2 CF.sub.3,--CH.sub.2 CH.sub.3, and ##STR1## and a method of preparation.

Abstract: A method of producing a glass-lined metal pipe in which an unconsolidated tal or metal alloy powder is loaded into a sealable glass mold comprising a graphite core, a glass sleeve slipped over the graphite core with a sliding fit, a sealable outer glass envelope surrounding the graphite core and glass sleeve forming with them a sealable chamber for the metal or metal alloy powder, wherein the glass is a type which becomes plastic when heated. The air in the mold is removed under vacuum and the mold is sealed and placed into a free flowing refractory powder in a crucible and consolidated by sintering under atmospheric pressure (CAP.RTM. process). Removal of the glass envelope and the graphite core produces a glass-lined pipe in which the glass liner is slightly fused into and is under compressive force from the surrounding metal pipe.

Abstract: The present invention relates to the production of a stable insulator of a germanium and a device produced thereby. A germanium substrate is provided with a layer of silicon nitride deposited on one of the outer surfaces. Ionized nitrogen is implanted by an ion beam into the silicon nitride layer. An electric field is applied across the substrate and layer. In one embodiment the substrate and layer are annealed while maintaining the electric field, the electric field is removed, and a second annealing step grows the germanium nitride insulator layer subcutaneously. In another embodiment the subcutaneous germanium nitride insulator layer is grown during a single annealing step by continued application of the electric field to the substrate and the layer.

Abstract: A millimeter wavelength solid dielectric waveguide having either an undulng or roughened outer surface is disclosed. As configured, and properly designed, for the wavelength of interest, the non-cylindrical surface will not have any deleterious effects on the electromagnetic properties of the dielectric waveguide. Moreover, the novel surface treatment will greatly increase the amount of heat energy that can be dissipated by radiation and convection from the dielectric waveguide thereby increasing its power handling capability.

Abstract: Alloy powder is packed into a mold which comprises a complex-shaped solid aphite inner core and a similarly complex-shaped thin glass outer wall. The mold is evacuated, sealed, and then heated to the alloy sintering temperature, the glass softens and applies an isostatic pressure on the alloy as the alloy particles consolidate. After the consolidation step, the mold and its contents are cooled and the glass and graphite materials are removed from the alloy object. This method is particularly useful for preparing complex fittings of Nitinol shape memory alloys.

Abstract: A solid polymeric electrolyte which is a two phase interpenetrating network f a mechanically supporting phase of a continuous network of a crosslinked polymer and an ionic conducting phase comprising a metal salt complexing liquid polymer which is a liquid poly(ethylene oxide), poly(propylene oxide), or poly(ethylene imine) complexed with a suitable metal salt. The mechanically supporting phase forms a matrix which supports the interpenetrating ionic conducting liquid polymer phase which provides continuous paths of high conductivity in all directions throughout the matrix.

Abstract: An oil content monitor/control unit system is configured to automatically nitor and control processed effluent from an associated oil/water separator so that if the processed effluent exceeds predetermined in-port or at-sea oil concentration limits, it is either recirculated to an associated oil/water separator via a ship's bilge for additional processing, or diverted to a holding tank for storage. On the other hand, if the oil concentration of the processed effluent is less than predetermined in-port or at-sea limits, it is discharged overboard.

Abstract: A method of securing the outer race of an anti-friction bearing in a hous recess for preventing rotation or slippage of the outer race.

Abstract: Energetic branched polynitrodiols of the formula ##STR1## wherein Z is --C(NO.sub.2).sub.3, --CF(NO.sub.2).sub.2, --C(NO.sub.2).su CH.sub.3, or --N(NO.sub.2)CH.sub.3, and a method of preparation. These diols are useful as components of energetic binders for plastic-bonded explosives.

Abstract: There is disclosed an aircraft wheel stop and tie-down arrangement for the dge of an aircraft carrier (or other type ships with aviation capability) having flight or elevator decks whereby an aircraft may be secured thereon with a portion of the aircraft extending over the edge, yet restrained from movement.

Abstract: A superior hermetic seal for ceramic modules is presented. The case base ber is provided with metallization around the periphery of the cavity. The case cover is provided with metallization not only to mate with the metallization of the base, but the cover metallization extends onto the thickness edge. The dimensions of the cover are less than the corresponding metallization dimensions of the base member. In this manner the solder bead formed about the periphery will wet the exposed metallization surfaces and form a visually inspectable bead.

Abstract: Apparatus for measuring the direction, extent and rate of linear displacet of a body (e.g. a steel bulkhead) subjected to a harsh environment such as shock from an explosive force. A housing containing an extendable piston is connected between the movable body and a fixed structure. The piston has a surface marked with alternating high and low light reflecting bands which pass under a pair of light emitting optical fibers fixed on the housing. Light reflected from the bands is detected and converted into corresponding out of phase electrical signals for measuring direction, extent and rate of linear displacement of the piston.

Abstract: There is disclosed a safe and arming device for ordnance fuzes including an nterrupter. The interrupter includes a cylindrical body adapted for rotational or axial movement in a housing when subjected to acceleration or other mechanical force in a bomb, missile, or other projectile for which designed. The cylindrical body is provided with a plurality of radially extending orthogonal openings containing detonators, whereby, upon movement of the cylindrical body, the detonators are brought into facing explosive communication with explosive leads for arming the fuze.

Abstract: A process for preparing an energetic mixture of 1,2,4-butanetroil trinitr and nitroglycerin by forming a polyol mixture of 1,2,4-butanetriol and glycerin, and then nitrating the polyol mixture with a mixture of nitric and sulfuric acids.

Abstract: A method of improving field-effect transistors, and the product thereof, wherein the resistivity of the upper layer of the source-gate channel region of a GaAs field-effect transistor (FET) may be selectively raised is disclosed. Impurity ions are implanted in the source-gate channel region followed by a much shallower implantation of boron in the same region. The boron ion concentration should exceed the N+ impurity ion concentration by a factor of 2 or more.