Not Available This Phase I SBIR program will develop electrostatic self-assembly (ESA) methods for the formation of nonlinear optical (NLO) thin films, and optical signal processing device products based on such films. The PI and colleagues at Virginia Tech have shown that the ESA processing… More

Advanced ceramic-based composite heat exchanger has the potential to reduce weight, improve ECS performance, increase aircraft payload, and decrease life-cycle cost. Under the Phase I effort, Allcomp has assembled a strong and experienced team to addressall relevant issues in designing and producing… More

The intent of this Phase I effort was to examine the feasibility of using C-C composite for possible tribological applications in Space. In the Phase I effort, selected C-C composite materials were modified and tested for both high-speed bearing cage andslip ring/ brush applications under simulated… More

The intent of this Phase I effort was to examine the feasibility of using C-C composite for possible tribological applications in Space. In the Phase I effort, selected C-C composite materials were modified and tested for both high-speed bearing cage andslip ring/ brush applications under simulated… More

Cu-Diamond composite is identified as a promising thermal spreader material. Cu-Diamond composite can be produced using conventional powder metallurgy processing technologies. Near-Net-Shape parts can also be produced. Diamond composite offers attractiveproperties with fewer limitations at more… More

"The next-generation of military and commercial turbine engines will operate at higher speeds; higher pressure-ratio and higher cycle temperature to achieve increased power and engine efficiency. As a result, advanced bearings capable of operating above 3.0MDN under severe loading are… More

70080 Volumetric growth in present day pixel detectors, coupled with increased detector thermal heat load and attendant cooling system complexity, is presenting severe design and performance limitation to fulfilling the needs of precision tracking. The structural and cooling system designs… More

"Allcomp proposes to design and develop innovative insulative carbon-foam cores for the hot structure of the next generation missiles and re-entry vehicles. Typical heatshield and re-entry structures encounter high heat flux and dynamic loads in theoperational environment. Conventional… More

The next-generation gas turbine engines will operate at higher speeds; higher pressure-ratio and higher cycle temperature to achieve increased power and efficiency. Advanced bearings capable of operating above 3.0 MDN are required.Carbon-Carbon (C-C) bearing cages were developed jointly by AFRL/PRTM… More

High conductivity (Hi-K) Carbon foam and Carbon-Carbon (C-C) composites are light-weigh and offers the highest specific thermal conductivity (conductivity/ density) among various engineering materials. Carbon foam and C-C have been identified as ideal corematerials for medium to high temperature… More

As one of two key parts of heat rejection systems in power conversion technologies for solar or nuclear electric propulsion, radiators reject the waste thermal energy generated in the power conversion process to space. An advanced radiator should provide high thermal rejection performance with… More

Recent advancement in both commercial and military electronic devices, such as radar T/R modules, solid state motor drivers, RF power amplifiers, advanced microprocessor among others demands for advanced thermal management systems to maintain their highoperation performance. A light weight high heat… More

It makes great economical and environmental sense to recycle A/C C-C brake. Used C-C brake composites, both 2D and 3D, are available in large quantities but to date have found limited use due to their thinness and annular shape. In Phase I, we have successfully demonstrated the feasibility of… More

Advanced ceramic-based composite heat exchanger offers the potential to reduce weight, improve heat exchanger performance, increase aircraft payload, and decrease life-cycle cost. Under the proposed Phase II effort, Allcomp plans to develop a full-size composite Fan Duct heat exchanger for JSF… More

Our research program is focused on achieving high thermal performance in a high temperature carbon-carbon (C-C) radiator especially designed to fulfill present and future challenges in outer space applications. The radiator is one of the key parts in heat rejection systems, in both power conversion… More

Carbon-carbon (C-C) composites are the state-of-the-art friction material for aircraft brakes. Generally speaking, C-C brake offers low wear and provides excellent frictional performance at high energy conditions such as rejected take off (RTO). The use of C-C aircraft brakes adds safety, increases… More

High-performance and high-power electronic semiconductor devices, such as solid state lasers, solid state motor drivers, RF power amplifiers, radar T/R modules among others, are used extensively in military and commercial applications. As the devices get more powerful while their volumes and weights… More

Nuclear Electric Propulsion (NEP) technology holds great promise for power and propulsion demands of NASA current and future deep space explorations. Closed Brayton Cycle (CBC) space power system is one of the most efficient energy conversion technologies for nuclear electric propulsion. There are… More

Carbon-carbon (C-C) composites are the state-of-the-art friction material for aircraft brakes. Generally speaking, C-C brake offers low wear and provides excellent frictional performance at high energy conditions such as rejected take off (RTO). However, C-C begins to oxidize at 800 F. C-C brake… More

Closed Brayton Cycle (CBC) space power system is one of the most efficient energy conversion technologies for nuclear and solar electric propulsion. The recuperator is critical to enhance CBC efficiency. An advanced light weight recuperator was proposed to significantly reduce the mass (up to 70%)… More

As the chip power increases, aluminum avionics enclosures (chassis) equipped with liquid-cooled cold wall are currently being proposed and qualified for advanced military fighters. There is an urgent need to further reduce the weight and to improve the performance of these enclosures. The ability to… More

Allcomp proposes to develop innovative thermal solutions based on advanced carbon-based material and composite technologies that have broad-based appeal in solving a number of thermal management applications in high power and small form factor tactical radios. Comparing to metallic options, high… More

Composite avionics enclosures with liquid-cooled card guides are predicted to weigh less than current state-of-the-art aluminum enclosure. While there are many successes in developing composite-based Thermal Planes for advanced avionics applications, limited effort has been spent on the enclosure… More

The state-of-the-art clutch plate for the lift systems is made of carbon-carbon composites and is challenged to meet future life and frictional requirements. This clutch is very similar in configuration to an aircraft brake, but operates at significantly higher speeds approximately 8500 rpm.… More

High conductivity (Hi-K) Carbon foam and Carbon-Carbon (C-C) composites are light-weight and offers the highest specific thermal conductivity (conductivity/ density) among engineering materials. Carbon foam and C-C have also been identified as ideal core materials for advanced high temperature heat… More

There is a constant need to reduce the size and part counts of state-of-the-art (SOA) turbine engines. One already demonstrated solution, which offers significant weight and cost payoffs, uses advanced fuel-lubricated (fuel-lubed) bearing. The challenge associated with fuel lubrication is that the… More

Open cell foam, which provides the highest heat transfer surface areas per unit volume, is considered as an excellent heat exchanger core material. Pyrolytic Carbon coated reticulated vitreous carbon (RVC) foam, which offers highly conductive foam ligaments and is available in different pore sizes… More

High capacity Thermal Energy Storage (TES) systems that can rapidly store peak waste heat using phase change material (PCM) and then dissipate it gradually during normal operation are the most ideal and the most compact Thermal Management (TM) systems possible for advanced weapon systems such as… More

Innovative thermal management approaches are required to address the increasing demand of safely dissipating large amounts of heat from very small electronic component. Removal of waste heat via evaporative cooling technologies presents the best opportunity to enable the integration of high power… More

There is a constant need to reduce the size and part counts of state-of-the-art (SOA) turbine engines. One already demonstrated solution, which offers significant weight and cost payoffs, uses advanced fuel-lubricated (fuel-lubed) bearing. The challenge associated with fuel lubrication is that the… More

High conductivity (Hi-K) Carbon-based foams offering extremely high surface area and the highest specific thermal conductivity (conductivity/ density) among engineering materials are considered as ideal candidate materials for advanced heat exchanger and for various thermal management applications.… More

The next generation of silicon-based detectors for tracking charged-particles in high energy physics experiments must meet demanding requirements to limit material and stability, often in the presence of substantial heat loads and high radiation fields. In particular, a continuing advancement is… More

High capacity Thermal Energy Storage (TES) systems that can rapidly absorb peak waste heat using phase change, liquid to vapor, dissipating it gradually during normal operation, are the most ideal and most compact Thermal Management (TM) systems possible for advanced weapon systems. such as. These… More

Open cell foam, which provides the highest heat transfer surface areas per unit volume, is considered as an excellent heat exchanger core material. Pyrolytic Carbon coated reticulated vitreous carbon (RVC) foam, developed by Allcomp, which offers highly conductive foam ligaments and is available in… More

The next generation of silicon-based detectors for tracking charged-particles in high energy physics experiments will impose demanding requirements. One of these requirements involves the need for thermally efficient, low mass, dimensionally-stable support structures exposed to high radiation… More

Advanced CMC composites are currently being developed for various components in the propulsion system along the hot gas path, where pressures up to 3000 psi and flame temperatures from 4000 degrees F to 5000 degrees F are encountered. In order to achieve the lightest possible and optimal… More

High capacity Thermal Management System (TMS) systems that can rapidly absorb peak waste heat using phase change, liquid to vapor, dissipating it gradually during normal operation, are the most ideal and most compact TMS possible for advanced weapon systems. These systems e.g. high power ADT/RF, are… More

The overall objective of the program is to develop innovative concepts for more efficient and reliable clutch plates for the JSF Fan Duct Clutch. Carbon-carbon composite clutch plates can meet a 1,500 engagement life requirement for a lift fan clutch, but this is at least two times less than the… More

Advanced ceramic matrix composites (CMC) are required for various components in the propulsion system along the hot gas path, where pressures up to 3000 psi and flame temperatures from 4000 degrees F to 5000 degrees F are encountered. In order to achieve the lightest possible and optimal component… More