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ORGANOMETALLIC VAPOR PHASE EPITAXY (OMVPE) IS A PROMISING TECHNIQUE FOR PRODUCING ULTRAHIGH PURITY III-V COMPOUND SEMICONDUCTOR. OMVPE CAN PRODUCE COMPLEX LAYERED STRUCTURES WITH THE ABRUPT INTERFACES REQUIRED FOR ADVANCED ELECTRONIC AND PHOTONIC DEVICES. UNFORTUNATELY, OMVPE CURRENTLY REQUIRES EXTREMELY TOXIC AND/OR PYROPHORIC GASES STORED UNDER PRESSURE IN LARGE VOLUMES. THESE GASES REPRESENT SE ...

METALORGANIC CHEMICAL VAPOR DEPOSITION (MOCVD) HAS BECOME A SUCCESSFUL THIN FILM GROWTH TECHNIQUE DUE TO ITS INHERENT CONTROL OVER FILM COMPOSITION, PURITY, UNIFORMITY AND DEPOSITION RATE. THIN FILM TECHNOLOGY FOR FERROELECTRIC MATERIALS SUCH AS LEAD TITANATE AND PZT IS IN GREAT DEMAND DUE TO MANY APPLICATIONS IN PEIZOELECTRIC AND OPTOELECTRIC DEVICES. THE ELECTRONIC PROPERTIES OF THE THIN FILM AR ...

Kinetic energy penetrators are currently relied upon as a way to defeat enemy armor. Historically these penetrators have been composed of unanium or tungsten based alloys due to their high densities. In addition to density, the deformation behavior of the alloy determines it's performance. A penetrator whose tip mushrooms or fractures on impact is less effective than a penetrator that retains it's ...

Increasingly strict emissions requirements and the need to increase fuel economy and reduce service intervals have dramatically accelerated the use of monitor and control electronics in engines. traditional methods such as adjusting the air/fuel ratio to optimize catalyst performance are not effective enough to meet future requirements. Measurement of the pressure in each cylinder permits enhanc ...

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