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...

Abstract Recently, silicon carbide–boron carbide composite ceramics have attracted more and attention. The most important achievements of the should be applied in terms mechanical, physical, chemical for use various advanced industries, such as armor plates, nozzles, abrasive tools, mechanical seals, etc. To prepare with good performance, synthesis powders is basis. approaches are systematicall...

This investigation tested the hypotheses that (1) individuals with higher levels of insight would be both happier and more satisfied with their lives than those with lower levels and (2) that an interaction between self-reflection and insight would affect both happiness and life satisfaction. Participants (N = 208) were community members who completed four self-report instruments. They were div...

This paper overviews heterogeneous exothermic reactive systems as they apply to the joining of materials. Techniques that are investigated fall under two general schemes: so-called Volume Combustion Synthesis (VCS) and Self-Propagating High-Temperature Synthesis (SHS). Within the VCS scheme, applications that are considered include Reactive Joining (RJ), Reactive Resistance Welding (RRW), and S...

Combustion synthesis (CS) is an effective technique to produce a wide variety of advanced materials that include powders and net shape products of ceramics, intermetallics, composites and functionally graded materials. This method was discovered in the beginning of 1970's in the former Soviet Union (Merzhanov & Borovinskaya, 1972), and the development of this technique has led to the appearance...

The morphology of structuring and composition forming the ceramic-metal composite material (cermet) TiC/Al is shown in obtaining it using a new method with spontaneous infiltration aluminum melt into porous ceramic frame titanium carbide TiC synthesized combustion mode initial mixture powders (charge) Ti+C, i.e. process self-propagating high-temperature synthesis (SHS).

Recently research shows that heterogeneous model is needed to explain some complex combustion behaviors in SHS. However, more heterogeneous details be considered more difficulties will be faced. A micro-heterogeneous & macro-homogeneous model is proposed in this paper based on some previous works for this problem. Combustion compact is divided into lots of little units, which are composed of a ...