Introduction931008795.ppt

材料科学基础（I）(FundamentalsofMaterialsScience),Chang-AnWang(Ph.D/Prof.)Tel:62785488Email:wangcaSchoolofMaterialsScienceandEngineeringTsinghuaUniversity.Beijing10008413/09/2016,1,Introduction,WhatisMaterialsScience&Engineering?WhydowestudyMaterialsScience?HowtostudyMaterialsScience?,2,I.WhatisMaterialsScienceandEngineering?,1.Materials,Definition:Inabroadsense,allsubstancesarematerials.Inanarrowsense,materialsarethosesubstanceswhosepropertiesmakethemusefulinpreparingstructures,machines,devices,orotherproducts.,3,Classification:,Accordingtocompositionorconstitution,4,MetalsNon-MetalsorCeramicsPolymersComposites,Non-metals,Metals&alloys,5,Accordingtousage,6,Classification:,StructuralmaterialsFunctionalmaterials,Accordingtoarrangementstateofinneratoms,7,Classification:,Crystallinematerials(crystals)Amorphousmaterials(glasses,etc.),Accordingtothermodynamicstateofmaterials,8,Classification:,StablematerialsMetastablematerials,Accordingtosize,9,Classification:,0-dimensionalmaterials(powders,particles)1-dimensionalmaterials(fibersorwhiskers)2-dimensionalmaterials(filmsormembranes)3-dimensionalmaterials(bulkmaterials),2.MaterialsScience,M.S.dealswiththerelationshipbetweenstructureandpropertiesofmaterials.,Mechanicalproperties:strength,toughness,hardnessPhysicalproperties:acoustic,optical,electrical,magnetic,thermalChemicalproperties:erosion,metallurgy,oxidation,decomposition,10,Structureisthearrangementofatomsormoleculesinmaterials.Properties:,3.MaterialsScienceandEngineering,11,MSEdealswiththerelationshipamongStructure,Properties,ProcessingandPerformanceofmaterials.,Processing:includespreparation,synthesis,fabrication,machining,recycle,wastedisposal,etc.Performance:referstobehaviorsofmaterialsinserviceortheresponsetoenvironments.,Thiscoursemainlytalksabouttherelationshipbetweenstructureandproperties,i.e.M.S.,12,4.RoleofMSEinScienceandEngineering,ByLorrence,appliedphysicist,II.WhydowestudyMaterialsScience?,Exam,requiredcourse,academiccreditCommonconcept,specialtylanguage,termsCloserelationswithscienceresearch跨学科interdisciplinary,13,AttendingtheclassconstantlyListeningtolectureattentivelyTakingnotescarefullyDiscussionenthusiasticallyReviewtimelyDoinghomeworkindependentlyReadingreferencesactively,14,III.HowtostudyMaterialsScience?,Emphasizingonfundamentals,seekingoutregularities,bringoutthefactsTextbook:材料科学基础潘金生、仝健民、田民波著Chapt.1,2,3,4and8PPTCourseware:TsinghuanetworkclassReferences:材料科学基础学习辅导范群成、田民波著Teachingassistants:SuYibo(苏一博)，Ph.DstudentEmail:suyb15LiangPeng(梁芃)，Ph.DstudentEmail:liangp16Homework：Twohomeworkbooks,handineveryTuesdayQuestionanswering