thermal diffusion process

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• thermal diffusion — noun : an effect wherein a temperature gradient in a gaseous or liquid mixture tends to cause a separation of the heavy components from the light * * * Physical Chem. the separation of constituents, often isotopes, of a fluid under the influence… …   Useful english dictionary

• Thermal barrier coating — Thermal barrier coatings are highly advanced material systems applied to metallic surfaces, such as gas turbine or aero engine parts, operating at elevated temperatures. These coatings serve to insulate metallic components from large and… …   Wikipedia

• Thermal history modelling — is an exercise undertaken during basin modelling to evaluate the temperature history of stratigraphic layers in a sedimentary basin.The thermal history of a basin is usually calibrated using thermal indicator data, including vitrinite reflectance …   Wikipedia

• Thermal conduction — In heat transfer, conduction (or heat conduction) is a mode of transfer of energy within and between bodies of matter, due to a temperature gradient. Conduction means collisional and diffusive transfer of kinetic energy of particles of ponderable …   Wikipedia

• Diffusion — This article is about the generic concept of the time dependent random process. For other uses, see Diffusion (disambiguation). Diffusion describes the spread of particles through random motion from regions of higher concentration to regions of… …   Wikipedia

• Thermal oxidation — In microfabrication, thermal oxidation is a way to produce a thin layer of oxide (usually silicon dioxide) on the surface of a wafer (semiconductor). The technique forces an oxidizing agent to diffuse into the wafer at high temperature and react… …   Wikipedia

• diffusion — /di fyooh zheuhn/, n. 1. act of diffusing; state of being diffused. 2. prolixity of speech or writing; discursiveness. 3. Physics. a. Also called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in …   Universalium

• diffusion — 1. The random movement of molecules or ions or small particles in solution or suspension under the influence of brownian (thermal) motion toward a uniform distribution throughout the available volume; the rate is relatively rapid among liquids an …   Medical dictionary

• diffusion — noun Date: 14th century 1. the action of diffusing ; the state of being diffused 2. prolixity, diffuseness 3. a. the process whereby particles of liquids, gases, or solids intermingle as the result of their spontaneous movement caused by …   New Collegiate Dictionary

• diffusion — /dəˈfjuʒən / (say duh fyoohzhuhn) noun 1. the act of diffusing. 2. the state of being diffused. 3. diffuseness or prolixity of speech or writing. 4. Physics a. the gradual permeation of any region by a fluid, owing to the thermal agitation of its …  

• Molecular diffusion — This article is about spontaneous dispersion of mass. For a more generic treatment of diffusion, see Diffusion. Diffusion from a microscopic and macroscopic point of view. Initially, there are solute molecules on the left side of a barrier… …   Wikipedia