Smooth Flow in Diamond: Atomistic Ductility and Electronic Conductivity

The Disparate Thermal Conductivity of Carbon Nanotubes and Diamond Nanowires Studied by Atomistic Simulation

Molecular dynamics simulations were used to calculate the thermal conductivity of carbon nanotubes and diamond nanowires with atomic interactions modeled by the Brenner potential. The dependence of thermal conductivity on length, temperature, and temperature “boundary” condition was investigated. Lengths from 50 nm to 1 μm were simulated at a temperature of 290 K, and additional simulations wer...

Numerical simulation of nanofluid flow over diamond-shaped elements in tandem in laminar and turbulent flow

In this paper, the Al2O3-water nanofluid flow in laminar and turbulent flows inside tubes fitted with diamond-shaped turbulators is numerically modeled. The nanofluid flow is modeled by employing a two-phase mixture method and applying the constant heat flux boundary condition at tube walls. In the results, the effects of different parameters such as the geometry of turbulators, volume fraction...

Thermal Conductivity of Diamond Composites

A major problem challenging specialists in present-day materials sciences is the development of compact, cheap to fabricate heat sinks for electronic devices, primarily for computer processors, semiconductor lasers, high-power microchips, and electronics components. The materials currently used for heat sinks of such devices are aluminum and copper, with thermal conductivities of about 250 W/(m...

Venus ® Diamond Venus ® Diamond Flow

Atomistic mechanisms of adhesion and surfaces compression of diamond

The interactions which occur when two diamond 1 I I I ) surfaces come into contact for short times have been examined via molecular dynamics. When both surfaces are hydrogen terminated these surfaces can be brought into contact, compressed, and separated with no damage to either surface. After compression and subsequent separation the surfaces and the bulk lattice regain their original geometry...