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We propose a new method of casting turbine blades to achieve directional solidification (DS)or single crystal solidification (SX) without withdrawal, which is currently the only manufacturing technique in use to make DS or SX castings.This newmanufacturing process will significantly improve the throughput from a casting furnace and quality of cast parts, hence reducing the manufacturing costs and ...

We propose a new method of casting turbine blades to achieve directional solidification (DS) or single crystal solidification (SX) without withdrawl, which is currently the only manufacturing technique in use to make DS or SX castings. This newmanufacturing process will significantly improve the throughput from a casting furnace and quality of cast parts, hence reducing the manufacturing costs a ...

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DESCRIPTION (provided by applicant): Contrast-enhanced magnetic resonance imaging is widely used for non-invasive diagnosis of a variety of diseases. However due to the intrinsic properties of existing gadolinium-chelate contrast agents, there exist clinical needs of improved MRI contrast agents that render extended circulatory half-life enabling blood pool imaging with favorable biodistribution a ...

Gallium nitride crystal growth has gained more attention as the need for a homoepitaxial substrate for GaN devices has increased. Kyma Technologies proposes to develop an advanced manufacturing process capable of growing single crystal GaN at growth ratesin excess of 1mm/hr. 50mm single crystal GaN substrates produced by Kyma Technologies will be used as the seed material to ensure thermal and l ...

Gallium nitride substrates are now being produced by several manufacturers, however significant market penetration is being limited by high prices and low quantities. This Phase II program is aimed at addressing both of these issues by developing a growth process for the production of 1cm thick boules at a growth rate of 1mm per hour. The Phase I program met and exceeded the goals of demonstrati ...

The principal objective of the interface coating research has been to provide high strength and high strain to failure in a ceramic composite. As the applications have gain acceptance, the focus has changed to affordability. There are three high cost area in a ceramic composite. They are: 1.The cost of the fiber, 2. The cost of the interface coating, and 3. The cost of the compositing operatio ...

The Phase II effort is to enhance the deposition rate of the pilot reactor, under design and construction, at the planned production facility. Currently the coating rate is limited to a reference rate of 1X. This work is to demonstrate, in the Synterials reactor, a rate of 5X. This rate is limited by the constraints on the pilot reactor. These improvements would be a major step toward reducing ...

Metal bellows are thin-walled cylindrical components with a corrugated structure perpendicular to the cylinder axis. Bellows are used in numerous applications requiring flexible connections between vessels which must be sealed in a pressure-, temperature- and media-resistant manner. Conventional bellows geometries are highly flexible during axial, lateral and angular motion, but generally do not a ...