金属材料英语基础课件.ppt

1、What is a Metal?Metal is consisted of positive centers(or ions)sitting in a“gas”of free-electros.It tends to be good electrical conductors.structure materials半导体半导体 Semiconductor超导体超导体 Superconductor磁性材料磁性材料 Magnetic materials光电材料光电材料 Optoelectronic Materials 生物材料生物材料 Biomaterials智能材料智能材料 Smart Mate

2、rials纳米材料纳米材料 Nanomaterials(Nanoengineered materials)超硬材料超硬材料 Super-hard Materials 高温结构材料高温结构材料 High-Temperature Structural Materials 高强高韧材料高强高韧材料 High strength and high toughness material 有色金属有色金属 Nonferrous metalfunctional materials Super-hard Material refers to hardness can be compared with diamo

3、nd materials,mainly refers to the diamond and cubic boron nitride.Superhard materials suitable for manufacturing and processing of other material tools,especially in the processing of hard materials,has the advantage there is nothing comparable to this,occupies an important position can not be repla

4、cedSuper-hard Materials Super-hard Materials Vertical Honing ToolsVertical Honing Tools High-Temperature Structural Materials canwithstand the mechanical load static or dynamic under the condition of high temperature ceramic.High-Temperature Structural MaterialsHigh-Temperature Structural Materials

5、A semiconductor is a material with electrical conductivity due to electron flow(as opposed to ionic conductivity)intermediate in magnitude between that of a conductor and an insulator.SemiconductorSemiconductorSemiconductorsemiconductorpower semiconductor partsMetallic materialMetallic material祝您成功！