A photo of electrical steel (coating removed) showing polycrystalline structure
A polycrystal is a material that is made of many smaller and randomly oriented crystallites. Cf.monocrystal. Image File history File linksMetadata Size of this preview: 752 × 599 pixelsFull resolution (1892 × 1508 pixel, file size: 460 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Polycrystal Metadata This file contains additional... Image File history File linksMetadata Size of this preview: 752 × 599 pixelsFull resolution (1892 × 1508 pixel, file size: 460 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Polycrystal Metadata This file contains additional... It has been suggested that Silicon steel be merged into this article or section. ... A crystallite is a domain of solid-state matter that has the same structure as a single crystal. ... Wikipedia does not have an article with this exact name. ...
Almost all common metals, and many ceramics are polycrystalline. The crystallites are often referred to as grains. Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily loses electrons to form positive ions (cations) and has metallic bonds between metal atoms. ... Fixed Partial Denture, or Bridge The word ceramic is derived from the Greek word κεÏαμικός (keramikos). ...
Polycrystalline is a structure of a solid, such as brass, that when cooled form liquid crystals formed from different points within it. This creates many crystals within a structure, where these crystals meet is known as a grain boundary.
A polycrystal diamond fluted tool is provided which is capable of effecting working with much higher accuracy and longer life as compared with the sintered diamond straight fluted tool of the prior art, and is particularly suitable for finishing working with high accuracy.
A polycrystal diamond fluted tool, in which at least a part of the rake face of a fluted tool base metal of a cemented carbide alloy is brazed with a polycrystal diamond film synthesized by a vapor phase method to form a cutting edge.
In the present invention, a polycrystal diamond film in the form of a flute to be a tool material is firstly formed by a vapor phase synthesis method, on the surface of a substrate having been subjected to helical grinding to give the same a flute shape as that of a tool base metal.
It is an excellent example to illustrate the relationship between microscopic processes at the atomic scale and macroscopic properties, relying on polycrystal plasticity theory developed by materials scientists.
We apply two-dimensional finite element methods and polycrystal plasticity theory to model deformation in the solid upper mantle of the Earth.
By including polycrystal plasticity, geophysical deformation modeling is entering a new state of refinement and is an excellent example for quantitative texture analysis.
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