Numerical Study of the Problem of Thermal Ignition in a Thick-Walled Container

Solid Phase Synthesis of Coating on the Base under the Electron Beam Surfacing

“…Moreover under such conditions it's not always possible to organize steady self-sustaining process. However the substrate that removes heat from the heating zone may considerably influence on the reaction regimes initiation and layer-by-layer propagation in the solid phase, similar to the effect of inert inclusions [4], inert rods [5], or the joined materials [6] on the transformation regimes in such systems. Owing to heat loss by radiation and finite quantity of heat conduction coefficient, kinetic regularities can differ in various parts of the sample that as the result will lead to nonhomogeneous phase structure of final-product.…”

Critical regimes of volume ignition of mechanically activated Ti-C-Ni mixtures

“…If the synthesis is performed in the classical thermal explosion mode, it seems reasonable to use the classical parameter, namely, the initiation temperature T 0 of the ambient medium where the synthesis is performed, as the ignition criterion. On the other hand, the synthesis in the thermal explosion mode is substantially affected by the degree of dilution by the inert component m (internal heat removal) [19]. Therefore, it becomes necessary to establish the flammability limits of activated mixtures with variations of the content of the inert component.…”