Modeling Reaction Front Propagation and Porosity in Pressure-Assisted Combustion Synthesis of Porous NiTi Intermetallics

    Authors

    M. Ballas; Z. L. Li;O. J. Ilegbusi

    Comments

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    Abbreviated Journal Title

    J. Mater. Eng. Perform.

    Keywords

    combustion synthesis; particle growth; porous intermetallics; reaction; kinetics; semi-solid slurry rheology; STATE WAVE VELOCITY; METAL CARBIDES; PARTICLE-SIZE; COMPACT; COMPOUND; IGNITION; FOAMS; HEAT; Materials Science, Multidisciplinary

    Abstract

    A mathematical model is developed to investigate the effect of various processing parameters on pressure-assisted combustion synthesis of NiTi intermetallics. Specifically, preheat and ambient temperature, particle size, initial porosity, and pressure differential are studied to determine their influence on propagation behavior and final porosity. The governing equations are solved using a high-order-implicit numerical scheme capable of accommodating the steep spatial and temporal gradients of properties. The predicted results appear plausible and consistent with the trends presented in the available literature.

    Journal Title

    Journal of Materials Engineering and Performance

    Volume

    21

    Issue/Number

    3

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    298

    Last Page

    307

    WOS Identifier

    WOS:000301798500002

    ISSN

    1059-9495

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