Combustion synthesis (CS) is an alternative technique for producing advanced materials and is dependent upon a highly exothermic chemical reaction to become self-sustaining after only a short energy pulse is applied to initiate the reaction. A functionally graded material (FGM) was investigated that combines superelastic and shape memory capabilities of NiTi with the high hardness, wear, and corrosion resistance of . CS was employed to produce a FGM from 100% ceramic to 100% NiTi intermetallic. Temperature and burning velocity data of the CS reaction were recorded. XRD of the final product layers was conducted to determine phase composition. The combustion temperature, burning velocity, and cooling rate in each layer decreased with increasing NiTi content. Large blowholes were present in the high NiTi content layers as a result of outgassing of volatile species from the reactant powders. XRD analysis revealed the presence of Ni-Ti intermetallics along with a substoichiometric TiC . Production of a FGM is possible through use of a CS reaction employing the propagating mode (SHS). The material layers were observed as functionally graded in both composition and porosity.
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July 2006
Research Papers
Combustion Synthesis of a Functionally Graded Composite
Douglas E. Burkes,
Douglas E. Burkes
Metallurgical and Materials Engineering Department, and Institute for Space Resources,
e-mail: dburkes@mines.edu
Colorado School of Mines
, 1500 Illinois Street, Golden, CO 80401
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John J. Moore
John J. Moore
Metallurgical and Materials Engineering Department, and Institute for Space Resources,
Colorado School of Mines
, 1500 Illinois Street, Golden, CO 80401
Search for other works by this author on:
Douglas E. Burkes
Metallurgical and Materials Engineering Department, and Institute for Space Resources,
Colorado School of Mines
, 1500 Illinois Street, Golden, CO 80401e-mail: dburkes@mines.edu
John J. Moore
Metallurgical and Materials Engineering Department, and Institute for Space Resources,
Colorado School of Mines
, 1500 Illinois Street, Golden, CO 80401J. Eng. Mater. Technol. Jul 2006, 128(3): 445-450 (6 pages)
Published Online: February 27, 2006
Article history
Received:
September 19, 2005
Revised:
February 27, 2006
Citation
Burkes, D. E., and Moore, J. J. (February 27, 2006). "Combustion Synthesis of a Functionally Graded Composite." ASME. J. Eng. Mater. Technol. July 2006; 128(3): 445–450. https://doi.org/10.1115/1.2204950
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