Results 11 to 20 of about 102,971 (296)
Heterogeneous Nucleation of Ice on Carbon Surfaces
Journal of the American Chemical Society, 2014 Atmospheric aerosols can promote the heterogeneous nucleation of ice, impacting the radiative properties of clouds and Earth's climate. The experimental investigation of heterogeneous freezing of water droplets by carbonaceous particles reveals widespread ice freezing temperatures.
Lupi, Laura +2 more
openaire +5 more sources
Deposition freezing, pore condensation freezing and adsorption: three processes, one description? [PDF]
Atmospheric Chemistry and Physics, 2023 Heterogeneous ice nucleation impacts the hydrological cycle and climate through affecting cloud microphysical state and radiative properties. Despite decades of research, a quantitative description and understanding of heterogeneous ice nucleation ...
M. Lbadaoui-Darvas +4 more
doaj +1 more source
Engineering Heterogeneous Nucleation during Solidification of Multiphase Cast Alloys: An Overview
Metals, 2023 The theory of heterogeneous nucleation was initially developed as a part of condensed matter physics, and later it was used as an important engineering tool to design metallurgical processes.
Simon N. Lekakh, Jingjing Qing
doaj +1 more source
Metals, 2021 Heterogeneous nucleation is a widespread phenomenon in both nature and technology. However, our current understanding is largely confined to the classical nucleation theory (CNT) postulated over a century ago, in which heterogeneous nucleation occurs ...
Zhongyun Fan +3 more
doaj +1 more source
Single-bubble dynamics in nanopores: Transition between homogeneous and heterogeneous nucleation
Physical Review Research, 2020 When applying a voltage bias across a thin nanopore, localized Joule heating can lead to single-bubble nucleation, offering a unique platform for studying nanoscale bubble behavior, which is still poorly understood.
Soumyadeep Paul +6 more
doaj +1 more source
Grain Initiation and Grain Refinement: An Overview
Metals, 2022 Heterogeneous nucleation and grain initiation are two different processes in early-stage solidification (ESS), although both are deterministic. Heterogeneous nucleation refers to the formation of a 2-dimensional (2D) nucleus (a crystal plane of the solid)
Zhongyun Fan, Feng Gao
doaj +1 more source
Microstructural Stability of Ti based Composites Fabricated by Spark Plasma Sintering [PDF]
MATEC Web of Conferences, 2020 In our previous study, the effects of TiC heterogeneous nucleation site particles on formability and microstructure of additive manufactured (AMed) Ti-6Al-4V products were studied.
Watanabe Yoshimi +3 more
doaj +1 more source
Journal of Materials Research and Technology, 2021 The formation of different microstructures in aluminum-lithium alloys welding joints by laser welding has not been fully understood at the moment. In this study, the nucleation mechanisms of equiaxed grains in the fusion zone of aluminum-lithium alloys ...
Chu Han +5 more
doaj +1 more source
Homogeneous versus Heterogeneous Zeolite Nucleation [PDF]
Angewandte Chemie International Edition in English, 1995 Aggregates of fractal dimension were found in the intermediate gel phases that organize prior to nucleation and crystallization (shown right) of silicalite from a homogeneous reaction mixture. Small- and wide-angle X-ray scattering studies prove that for zeolites nucleation may be homogeneous or heterogeneous.
Dokter, W.H. +4 more
openaire +1 more source
Heterogeneous Nucleation and Grain Initiation on a Single Substrate
Metals, 2022 Recently, we have proposed a new framework for early stages solidification, in which heterogeneous nucleation and grain initiation have been treated as separate processes.
Zhongyun Fan, Hua Men
doaj +1 more source