Thermal Expansion of Plutonium Nitride

Compressibility and thermal expansion of cubic silicon nitride

Adjustable zero thermal expansion in antiperovskite manganese nitride.

It is general knowledge that materials expand with increasing temperature and contract with decreasing temperature. Only few materials seem to neither expand nor contract over a certain temperature range and thus feature near zero thermal expansion (ZTE) behavior. These materials are the focus of recent scientifi c work [ 1–5 ] and have potential technical applications in both structural materi...

Atomistic Modeling of the Negative Thermal Expansion in δ-Plutonium Based on the Two-State Description

The δ phase of plutonium with the fcc structure exhibits an unusual negative thermal expansion (NTE) over its narrow temperature range of stability, 593-736 K. An accurate description of the anomalous high-temperature volume effect of plutonium goes beyond the current capability of electronic-structure calculations. We propose an atomistic scheme to model the thermodynamic properties of δ-Pu ba...

Thermal and electrical conductivity of Aluminium Nitride nanofluids

This study was designed to experimentally measure the thermal and electrical conductivities of Aluminium Nitride/Ethylene Glycol (AlN/EG) nanofluids. Transmission electron microscopy (TEM) was used to characterize the shape of AlN nanoparticles. Nanofluids with different particle volume concentrations of 0.5%, 1%, 2%, 3%, 4%, and 5% were utilized. The thermal and electrical conductivities of the...

Thermal expansion of cancrinite

I n t r o d u c t i o n THE structures of the cancrinite-group minerals are character ized by parallel s ix-membered rings consisting of alternating A104 and SiO4 tetrahedra. The hexagonal symmetry is the result of the stacking of such six-membered rings in an AB... sequence. This stacking leads to large continuous channels that are formed by twelve-membered rings of alternating A1Oa and SiO4 t...