Abstract: The aging and radiation induced frequency shifts of quartz crystal oscillrs are minimized by using oscillator circuits in which the DC voltage applied to the quartz crystal is about zero. This results in reduced movement of impurity ions which generally cause such shifts.

Abstract: An improved electrochemical cell is provided using a high surface area can electrodes as the negative electrode in an alkali metal hydroxide electrolyte.

Abstract: A solid state electrochemical cell is provided for performing electrocheml measurements on a solid electrolyte at high temperatures. The solid state electrochemical cell includes a noble metal working electrode, a lithium alloy reference electrode, and counter electrode, and a solid solution of lithium germanium oxide and lithium vanadium oxide as the solid electrolyte.

Abstract: High temperature molten salt electrochemical cells that are economic are e using an alkali metal intercalated petroleum coke as the anode.

Abstract: A thin film of MgIn.sub.2 O.sub.4, is used as an electrode in a ferroelecc device. It provides reasonable conductivity, is inherently transparent and can be grown epitaxially.

Abstract: An improved solid state electrochemical cell is provided including a lith ion conducting solid electrolyte. The lithium ion conducting solid electrolyte is a solid solution of lithium germanium oxide and lithium vanadium oxide that includes lithium iodide as an additive. The improved cell can be used as a high temperature high rate rechargeable cell or as a high temperature thermal cell.

Abstract: A solid state electrochemical cell is provided including lithium-aluminum loy as the anode, a solid solution of lithium germanium oxide (Li.sub.4 GeO.sub.4) and lithium vanadium oxide (Li.sub.3 VO.sub.4) as the electrolyte, and a platinum disk as the cathode. The cell is particularly suitable for use as an oxygen sensor to measure the partial pressure of oxygen gas at about 300.degree. C. in a mixture of gases.

Abstract: A method is provided of making radiation compensated quartz crystal oscillators. According to the method, at least two quartz crystal oscillators are first selected that have different responses to energetic radiation from gamma rays, neutrons, etc. Each oscillator is characterized individually as to its radiation sensitivity, the oscillators then exposed to the same radiation flux and the respective output frequency extracted from each oscillator. The frequency difference between the oscillators arising from the influence of the radiation flux is then derived. A correction signal is then derived from the frequency difference and the known radiation sensitivities. The correction signal is then applied to one of the oscillators to effect radiation compensation of its frequency.

Abstract: c-axis oriented microwave quality HTSC films are deposited onto single crystals of gadolinium gallium garnet (GGG) using pulsed laser deposition (PLD) with conditions of 85 mTorr of oxygen partial pressure, a block temperature of 730.degree. C., a substrate surface temperature of 790.degree. C. and a laser fluence of 1 to 2 Joules/cm.sub.2 at the target, a laser repetition rate of 10 Hz and a target to substrate distance of 7 cm and in which the a and b lattice parameters of the GGG exhibit a mismatch of less than 2.5 percent with the a and b lattice parameters of the HTSC.

Abstract: An adherent gold film is deposited onto an oxide substrate by cleaning the xide surface so as to remove all contaminants and then vacuum depositing onto the clean oxide surface a gold film of up to 40 nm in thickness.

Abstract: Binary sulfides of chromium of the formula Cr.sub.2 S.sub.3, Cr.sub.3 S.s4, and CrS are used as the cathode in a high temperature molten rechargeable salt cell. The cathode material is thermally stable at high temperatures and also provides high specific energy densities and specific power densities to that the cell can be used in pulse power, electric propulsion and load leveling applications.

Abstract: A high voltage, rechargeable lithium electrochemical cell is provided that exhibits high cycling efficiency over many cycles. The cell comprises metallic lithium as the anode, poly 3-methylthiophene (PMT) polymer as the cathode, and LiAsF.sub.6 salt dissolved in dimethylcarbonate (DMC) as the electrolyte.

Abstract: A coating is provided for an optical fiber that inhibits abrasion or scraing of the fiber's surface. The coating is obtained by depositing a thin film of non-hydrogenated diamond-like amorphous carbon (a-C) onto the optical fiber using a laser ablation technique employing graphite as a target material.

Abstract: A lithium electrochemical cell is provided that provides many cycles with loss in capacity. The cell contains an ion conducting solid polymer electrolyte and an electronically conductive, anion-intercalating polymer cathode.

Abstract: A polymer film having a conductivity gradient across its thickness is made rom a mixed solution of an insulating polymer, A and a polymer, B that can be made conducting by doping or protonation by a method including the steps of:(A) mixing the solution of the insulating polymer, A and the polymer, B that can be made conducting by doping or protonation,(B) casting the mixed solution together as a solid composite film, and(C) exposing the film to a treating agent that can dope or protonate polymer B and make polymer B conductive and create a conductivity gradient across the thickness of the polymer films.

Abstract: A ferroelectric/silicide/silicon multilayer is made by a method including e steps of(A) depositing a layer of cobalt or nickel on a silicon substrate,(B) annealing the silicon substrate in an inert atmosphere at a temperature of about 750.degree. C. to form a layer of cobalt silicide or nickel silicide on top of the silicon, and(C) depositing a ferroelectric layer onto the silicide layer.

Abstract: An oxyhalide electrochemical cell is provided including an alkali metal ircalated carbon as the anode, a high surface area carbon black as the cathode, and a solution of an alkali metal salt in an oxyhalide solvent as the electrolyte.

Abstract: A solid polymer electrolyte is provided including a solid solution of a lium salt such as LiCF.sub.3 SO.sub.3 in a polymer host such as poly(ethylene oxide). The electrolyte also includes a small amount of a plasticizing agent such as bis(2 ethylhexyl) sebacate. The electrolyte can be used to make a solid state electrochemical cell.

Abstract: A solid polymer electrolyte having an increased conductivity is provided luding a solution of at least one lithium salt in at least one polymer host, and wherein said solid polymer electrolyte also includes a dispersion of a lithium ion conducting solid ceramic material. A solid state electrochemical cell including the electrolyte is also provided.

Abstract: A quasi-passive identification system having an interrogator and a passive ransponder. The interrogator has a signal generator that generates radio-frequency energy under the control of a manual actuator. A preset encoder encodes the radio-frequency energy with an interrogation code to produce an interrogation signal that is radiated by an antenna. The transponder has an receiver for receiving the interrogation signal and separating it into received radio-frequency energy and a coded signal. A decoder decodes the coded signal and looks for a match between the coded signal and the interrogation code. A response transmitter, which is controlled by the decoder, encodes the received radio-frequency energy with the response code and radiates the response signal. When a receiver in the interrogator receives the response signal, the response signal is decoded and analyzed for a proper response. A response indicator is energized when a proper response is received.