Crystallographic defect - Wikipedia
网页A crystallographic defect is an interruption of the regular patterns of arrangement of atoms or molecules in crystalline solids.
12.4: Defects in Crystals - Chemistry LibreTexts
网页Defects may affect only a single point in the lattice (a point defect), a row of lattice points (a line defect), or a plane of atoms (a plane defect). A point defect can be an atom missing from a site in the crystal (a vacancy) or an impurity atom that occupies either a normal lattice site (a substitutional impurity) or a hole in the lattice ...
Crystal defect | Definition, Types, & Facts | Britannica
网页Crystal defect, imperfection in the regular geometrical arrangement of the atoms in a crystalline solid. Located at single points, along lines, or on whole surfaces in the solid, these defects influence its mechanical, electrical, and optical behavior.
Line Defects: Dislocations in Crystalline Materials
网页2021年4月26日 · Line defects, especially edge and screw dislocations, are primarily responsible for characterizing slip which accommodates shear-resolved deformation. In contrast to point defects, which might be considered zero-dimensional or 0-D, line defects might be considered 1D.
Crystal Line Defect - an overview | ScienceDirect Topics
网页Line defects (also called dislocations) are formed as a result of stresses that the minerals undergo during deformation. Dislocation lines develop when minerals are deformed beyond their elastic limits, and lines of extra atoms delineate areas in the crystal where movement of one part of the crystal has taken place relative to another part.
6.18: Line Defects, Mechanics and Stress-strain Curves, and Slip
网页Line defects. In addition to point defects, crystals can have defects that cover larger areas and involve the coordination of more atoms than just one. Point defects are called 0D, or zero dimensional; in keeping with this nomenclature, line defects can be thought of as 1D defects (involving a line of atoms), and planar defects can be thought ...
Line Defects - SpringerLink
网页2024年4月23日 · 17.1 Introduction. One-dimensional imperfections in crystals are called line defects (whether they are actually linear or not). While studying distortions in solids in 1905, Italian mathematician and physicist Vito Volterra (1860–1940) theorised the existence of two different kinds of such defects [1].
19. Point & Line Defects | Introduction to Solid State Chemistry ...
网页This page contains materials for the session on point and line defects in crystals. It features a 1-hour lecture video, and also presents the prerequisites, learning objectives, reading assignment, lecture slides, homework with solutions, and resources for further study.
Crystal Defects - SpringerLink
网页2018年2月25日 · Crystal defects are classified into point defects, line defects, and planar defects. Intrinsic point defects, and associates of these defects, are formed at elevated temperatures in thermodynamic equilibrium. The density of vacancies and interstitials increases following the Arrhenius law with an activation energy for …
20. Line, Interface & Bulk Defects - MIT OpenCourseWare
网页Line, Interface & Bulk Defects. « Previous | Next » Session Overview. Prerequisites. Before starting this session, you should be familiar with: Cubic crystal structures (Session 15) Crystal directions, planes, and Miller indices (Session 16) Structure of edge dislocations (Session 19) Looking Ahead.
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