Reactive materials, such as thermite-like metal-metal oxide mixtures, intermetallic mixtures and combustible metals are being studied as candidates for binary energetic materials. During the past decade, there are several studies to use these reactive materials to design dual functional structuralenergetic materials. Most of the earlier studies resulted in low strength, low density structural e...

Neutralization of landmines is dangerous and complicated work. For Humanitarian Demining, the most common neutralization method is demolition using small explosive charges. Although common practice, demolition has several disadvantages. Deminers need non-explosive mine neutralization technologies that are safer, more reliable and less expensive. To meet this need, several innovative non-explosi...

Rapid reaction of a molten metal with an oxide is the key to understanding recently discovered fast reactions in nanothermite composites. We have investigated the thermite reaction of Fe2O3 with aluminum by molecular dynamics simulations with interatomic forces calculated quantum mechanically in the framework of the density functional theory. A redox reaction to form iron metal and Al2O3 initia...

Rail thermite (or Thermit) welding is a valuable welding technology for the railway industry because of its simplicity, portability, and economy. Using the finite-element method, a heat transfer analysis is conducted in this study. Only the heat transfer by conduction was simulated explicitly in the model, the other thermally significant phenomena were included through the boundary and initial ...

A modified smoothed particle hydrodynamic (MSPH) computational technique was utilized to simulate molten particle motion and infiltration speed on multi-scale analysis levels. The radial velocity and velocity gradient of molten alumina, iron infiltration in the TiC product and solidification rate, were predicted during centrifugal self-propagating high-temperature synthesis (SHS) simulation, wh...

Rail transportation has been an emerging and promising method for economic development in Thailand several countries. Thermite welding is one of the major joining processes used to weld rail steel both during construction maintenance. Unlike most which heat generated by electrical energy, thermite use chemical reactions between iron oxide aluminum or other metallic compounds create weld. The am...