|
We consider the gasless solid fuel combustion model of the
Self-Propagating High-Temperature Synthesis process in which combustion waves are employed
to synthesize desired materials. Specifically, we consider the combustion
of a solid sample in which combustion occurs on the surface of a cylinder
of radius R. We consider solution behavior as R is increased. If R is
sufficiently small, planar pulsating waves are observed. As R is increased
transitions to more complex, nonplanar waves occur. The study of different
wave types is important since the mode of propagation determines the
structure of the product. We describe a variety of different waves,
including (i) spin waves, (ii) counterpropagating (CP) waves of various
types, (iii) alternating spin CP waves (ASCP), (iv) modulated spin waves,
(v) bound states of asymmetric spin waves, (vi) modulated asymmetric spin
waves, (vii) asymmetric ASCP waves, and others.
|