Toughened Ceramic Composite Components for High-Temperature Systems

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2016-SAND-67513
High-temperature systems are used in a wide range of applications associated with transportation, energy production and storage, waste heat recovery, propulsion, national defense, chemical processing, and chemical and waste storage. The performance of such high-temperature systems, e.g., aircraft, automobiles, and ship engines; fossil fuel, nuclear, and solar power plants; and hypersonic vehicles and missiles, is often limited by the properties of materials used in critical system components/devices. The drive for enhanced performance often means even more extreme conditions experienced by such components/devices, which in turn requires advanced materials with improved combinations of high-temperature mechanical, chemical, and thermal properties, e.g., resistance to distortion, fracture, melting, and corrosion at elevated temperatures. The cost-effective manufacturing of such advanced materials and devices in complex, tailorable shapes and chemistries is also of vital importance for widespread utilization.

Researchers at Purdue University have developed a reaction-based method for converting complex-shaped, three-dimensional preforms, which are generated by pressing, casting, 3-D printing, machining, etc., into high-melting, stiff, fracture-resistant, thermally-conductive, corrosion-resistant ceramic composites that retain the same shape and dimensions as the starting, easily-shaped preforms. The reaction process can be used to generate toughened ceramic composites that are chemically and structurally tailored for particular devices in high-temperature systems. The high-temperature components/devices that could benefit from this technology include, but are not limited to, combustion chambers, compressors, bearings, turbine blades, aerodynamic leading edges, heat exchangers, valves, bearings, piping, and storage containers for high-temperature fluids.

Advantages:
Manufacturing:
-Net-shape, net-size fabrication
-No sintering shrinkage and part distortion
-Lower cost manufacturing
Materials:
-High melting
-High temperature stiffness
-Fracture resistance
-Corrosion resistance
-High thermal conductivity
Devices:
-Higher operating temperatures
-Longer life

Potential Applications:
-Manufacturing of complex-shaped, ceramic-rich components
-Toughened ceramic composites with tailorable chemistries and properties
-More efficient, higher performance, high-temperature systems
Oct 17, 2018
NATL-Patent
United States
(None)
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Apr 18, 2017
PCT-Patent
WO
(None)
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Apr 18, 2016
Provisional-Patent
United States
(None)
(None)
Purdue Office of Technology Commercialization
1801 Newman Road
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org