Award Data

Structural composites have many applications to 2500 Degrees F and beyond, in oxidizing environments. Oxide fibers within intermetallic or oxide matrices are the top candidate systems for satisfying these conditions. Suitable fiber/matrix interface coatings are critical, but their development has suffered from extremely high per-pound costs and marginal thermochemical stability. CaF2 and LaPO4 hav ...

The ability to control large amounts of power (1-150kW) is necessary in applications ranging from aerospace to consumer electronics to industrial power systems and transportation. In order for silicon and gallium arsenide devices to meet such high power densities, tens of devices must be combined to meet the voltage and current requirements. Power combining networks, extra heatsinking and sophisti ...

Spatial light modulators (SLM's) have been identified as critical elements in many optical computing and signal processing applications. Typically these devices use expensive bulk ceramics that result in high cost and difficult device integration. Ceramic materials in the PbLaZrTiO3 (PLZT) family of compounds show a unique combination of high transparency, large electrooptic effects and exceptio ...

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The USAF's transition to More Electric Aircraft (MEA) will force greater demands on energy storage by rechargeable batteries. MEAs will rely on electrically based power systems to supplant the present combination of hydraulic, pneumatic, mechanical, and electrical subsystems, all of whose power are extracted from the main aircraft engines. However, a considerable battery energy storage capabilit ...

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