In this study, metal behavior in ash-melting and municipal solid waste (MSW) gasification-melting facilities were investigated. Eight ash-melting and three MSW gasification-melting facilities with a variety of melting processes and feedstocks were selected. From each facility, melting furnace fly ash (MFA) and molten slag were sampled, and feedstock of the ash-melting processes was also taken. ...

Fluvial features present around impact craters on Mars can offer insight into the ancient martian climate and its relationship to the impact cratering process. The widespread spatial and temporal distribution of surface ice on Mars suggests that the interaction between impact cratering and surface ice could have been a relatively frequent occurrence. We explore the thermal and melting effects o...

We report a quantitative measurement of the pressure effect on melting point elevation of encapsulated nanoparticles without epitaxial interfaces. By means of in situ x-ray diffraction, a substantial melting point elevation of about 15 K in encapsulated Al nanoparticles in Al2O3 shells without epitaxial interfaces was observed. Meanwhile, a pressure buildup of about 0.25 GPa on the Al nanoparti...

The melting behavior of ZnTe nanowires has been investigated using a transmission electron microscope in both bright field and high-angle annular dark field modes. The ZnTe nanowires, 30−160 nm in diameter, were heated using a controllable heating system, and their melting temperature was studied. The results showed a significant reduction of the melting temperature of about 450 °C, depending o...

of all the atoms across the cluster. For an icosahedral isomer those two steps are found to be much closer in temperature (at ≈ 240 K and 270 K, respectively). For the case of Na92, the icosahedral isomer again melts in two well defined steps, surface melting at ≈ 130 K and homogeneous melting at ≈ 240 K, whereas an amorphous isomer shows an extremely broad, featureless melting transition. In t...

A new phenomenon is theoretically predicted, namely, that solid-solid transformation with a relatively large transformation strain can occur through virtual melting along the interface at temperatures significantly (more than 100 K) below the melting temperature. The energy of elastic stresses, induced by transformation strain, increases the driving force for melting and reduces the melting tem...

We present a phenomenological model of melting in nanoparticles with facets that are only partially wet by their liquid phase. We show that in this model, as the solid nanoparticle seeks to avoid coexistence with the liquid, the microcanonical melting temperature can exceed the bulk melting point, and that the onset of coexistence is a first-order transition. We show that these results are cons...

The melting point of palladium was determined by measuring with an optical P3^rometer the ratio of brightness of the red light (X= 0.6528m) emitted by black bodies at the melting points of palladium and gold, respectively. The crucible method was shown to be more reliable than the wire method. Especial attention was given to the purity of the metals. The result obtained by the crucible method, ...

Periclase (MgO) is the second most abundant mineral after bridgmanite in the Earth's lower mantle, and its melting behaviour under pressure is important to constrain rheological properties and melting behaviours of the lower mantle materials. Significant discrepancies exist between the melting temperatures of MgO determined by laser-heated diamond anvil cell (LHDAC) and those based on dynamic c...

A new classification scheme based on the melting profile of DNA sequences simulated thermal melting profiles. This method was applied in the classification of (a) several species of mammalian - β globin and (b) α-chain class II MHC genes. Comparison of the thermal melting profile with the molecular phylogenetic trees constructed using the sequences shows that the melting temperature based appro...