The heating and rapid quenching allows for the mixture of atoms to randomised orientations with realistic microstructures and randomised defects, such as interstitial or vacancy atoms. Due to the requirement of the mathematical model (force field) to predict the nanocrystalline structure, the influence...
Following melt-quenching realizes the glass formation of a family of carboxylate MOFs (UiO-67, UiO-68 and DUT-5), which are usually believed to be un-meltable. Our work opens up an avenue for melt-quenching porous molecular solids into glasses....
molecular simulationstructural defectsTight-binding molecular dynamics simulations have been performed to investigate the effect of quenching rate of the Si melt on the resulting local structure of amorphous silicon. Different quenching rates were used to cool liquid silicon in the simulations to ...
Following melt-quenching realizes the glass formation of a family of carboxylate MOFs (UiO-67, UiO-68 and DUT-5), which are usually believed to be un-meltable. Our work opens up an avenue for melt-quenching porous molecular solids into glasses....
Thus, there is a competition between quenching, which tends to suppress the crystallization process and deformation of the melt that enhances the same. The thermomechanical history undergone by the melt determines whether a polymer melt solidifies predominantly to a glass or a crystalline state or ...
Droplet impact is an ubiquitous occurrence in nature and industry, which has become a focal point of basic research of enormous fields, from the weather phenomenon like rainfall [1], [2] to various industrial technologies, including plasma spraying [3], quenching [4], inkjet printing [5], oi...
Crystal growth from the melt of n-pentacontane (C50) was studied by molecular dynamics simulation using a validated united atom model. By quenching below the melting temperature of C50 (370 K), propagation of the crystal growth front int... A Bourque,G Rutledge - APS Meeting Abstracts 被引...
Miroshnichenko, I.S.,Zakalka iz zhidkogo sostoyaniya(Quenching from a Liquid State), Moscow: Metallurgiya, 1982. Herlach, D.M., Non-equilibrium solidification of undercooled metallic melts,Mater. Sci. Eng., 1994, vol. R12, nos. 4–5, pp. 177–272. ...
To rule out possible nanocrystallization and macroscopic phase separation associated with the phase transition, a glass ribbon sample was made by melt spinning at high quenching rate of 105–106 K s À 1 (see Methods) from 1,003 K (after cooling down from 1,143 K), which is below the ...
Quenching was performed at an average rate of ∼130 °C s−1 by cutting off the heating power, while pressure was maintained via an automatic controller. Throughout this study, the samples are referred to by their measured water content in wt% (e.g., PNR_0 for the anhydrous sample,...