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1. Classification y Ideal or perfect crystal real or defect crystal According to dimension o point defect: vacancies, interstitial atoms s line defect dislocation planar defect: stacking fault o volume defect mosaic structure
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1. Deformation process of polycrystalline materials Deformation process of industrial material consists of three stages Elastic. which is reversible
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I Introduction Silicates are compounds that mainly composed of [sio4]. It is the essential components of most rock and soil, such as quartz, feldspar, mica etc
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3. 1 Basic concepts of al loys 1. Definition An alloy is the combination of metal(s) with other elements through chemical bonding. Termino logy
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2. Classification of materials based on structure Regularity in atom arrangement periodic or not (amorphous)
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2.3 Crystal Structure and Complex Lattice | Crystal structure is the real arrangement of atom in crystals Crystal structure Space lattice Basis or structure unit
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1.2 Atomic bonding Bonding forces and energies FF net force attractive force repulsive force
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Chapter 1 Atomic Structure and Bonding 1.1 Atomic structure Atomic numbers and atomic masses 1. Atomic Models
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一、找寻失落的空间—现代主义的影响 1、失落的空间 2、产生的缘由
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《城市发展史》PPT教学课件(绪论、城市和城市发展)
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