Applied Composite Technology

Roland Christensen established Applied Composite Technology, a company that makes artificial feet, marketed as Flex-Foot, that uses carbon fiber epoxy prepreg, which was so effective that a sports event participant with an artificial foot ran the 100 m in 11.3 s in the 1996 Atlanta Paralympic Games. These artificial feet are sold throughout the world and production has exceeded some 20,000 [140]. 

Applied Composite Technology (ACT), Fayette, Utah, USA—manufacture composite products, a leading producer of prosthetic limbs. Also produce rifle and pistol barrels. AppUed Fiber Systems, Clearwater, Florida, USA— manufacture Towflex, which includes continuous carbon fiber powder coated with a variety of thermoplastics, such as Nylon-6, PP, PET, PES, PEI, PPS and PEEK, avaUable as a flexible towpreg suitable for hot filament winding. Acquired by Hexcel in April 2001. 

Therefore the material should have high durability, exceptional fatigue resistance, strength, and dynamic responsiveness. Applied Composite Technology, located in Fayette, Utah, makes composite feet for amputees and hghtweight rifle barrels. 

A. A. White, S. M. Best, I. A. Kinloch, Hydroxyapatite-carbon nanotube composites for biomedical applications A review, International Journal of Applied Ceramic Technology, vol. 4, pp. 1-13, 2007. 

A Handbook of Applied Biopolymer Technology Synthesis, Degradation and Applications 13 Challenges in Green Analytical Chemistry 14 Advanced Oil Crop Biorefineries 15 Enantioselective Homogeneous Supported Catalysis 16 Natural Polymers Volume 1 Composites 17 Natural Polymers Volume 2 Nanocomposites 18 Integrated Forest Biorefineries... 

Figure 23.56 XXsys Technologies corrosion retrofit process (part A), (a) Typical corroded bridge structure with cap beam showing extreme corrosion, (b) Corroded structure gritblasted and concrete repaired prior to composite application, (c) Robo-Wrapper can wind column diameters up to 1 m, (d) Robo-Wrapper applying composite material with automatic control, (e) Robo-Wrapper in operation. Source Courtesy of XXsys Technologies Inc., San Diego.

Pastore, C., Ko, F., 1988. A processing science model for three dimensional braiding. How to apply advanced composites technology, 371-376. 

C. E. Smith, G. N. Morscher, and Z. H. Xia, Monitoring Damage Accumulation in Ceramic Matrix Composites Using Electrical Resistivity, Scripta Materialia, 59 [4] 463-466 (2008). Smith, C. E., Morscher, G. N. and Xia, Z., Electrical Resistance as a Nondestructive Evaluation Technique for SiC/SiC Ceramic Matrix Composites Under Creep-Rupture Loading, International Journal of Applied Ceramic Technology, 8 298-307 (2011). 

Medri, V., Capiani, C., Bellosi, A. (201 la). Properties of slip-cast and pressureless sintered ZrB2-SiC composites. International Journal of Applied Ceramic Technology, 8(2), 351-359. doi 10.1111/j.l744-7402.2009.02484.x. 

Singh, M., Asthana, R. (2009). Joining of ZrB -Based Ultra-High-Temperature Ceramic Composites to Cu-Clad-Molybdenum for Advanced Aerospace Applications. International Journal of Applied Ceramic Technology, 6, 113-133. doi 10.1111/j. 1744-7402.2008.02291.x. 

Naslain, R. (2005). SiC-matrix composites Non-brittle ceramics for thermo-structural application. International Journal of Applied Ceramic Technology, 2,75-84. doi 10.111 l/j.l744-7402.2005.02009.x. 

Much of the success of the RISTON and CROMALIN was derived from the availability of an exclusive, novel photoinifiator system based on hexaarylbiimidazole photoini-fiators. The exclusivity was derived from a determined effort earlier in the Organic Chemicals Department of DuPont to obtain composition of matter patents, which eliminated competitors from applying this technology to their products. These photoinitiators were patented in 1974 and provided DuPont with a unique photooxidants and photopolymerization initiators. 

Scotts technology (17) uses fluid-bed (Wurster column) technology to apply polymeric coatings to a number of fertilizer substrates including urea, potassium nitrate, potassium sulfate, and monoammonium phosphate (MAP). The coating material is appHed as a water-borne latex onto the fluidized substrate. As the substrate is fluidized with warm air (40—50°C), water is driven off and the latex coalesces into a continuous film around the fertilizer particle. The particular latex compositions used have selected glass-transition and blocking temperatures, which enable quick removal of the water before the soluble fertilizer core dissolves. This obviates the need to use precoats prior to the latex appHcation. 

The technology to routinely cure applied adhesives for repairing damaged composite structures at remote repair stations is currently available. There are already systems that use portable accelerators for X-ray radiographic inspection of aircraft components [43]. Fig. 6 shows a conceptual picture of a portable accelerator unit that would contain the power unit, vacuum systems, and computer... 

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