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《第一章固体材料的结构材料结构固体第一章固材料结构固体第一章固材料结构固体第一章》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、第一章固体材料的结构ChapterLTheStructureofMaterials作业1：原版教材第105页第17题17.IdentifytheplaneinanFCCmetalformedbytheinterceptsWhatisthenormaltothisplane?Solution:1)theinterceptsofthisplaneare1厂1,・2;2)Thereciprocalsofthisplaneare1,-1,-—,takingthe2reciprocalsoftheintercepts.3)clearfractions,4)sit
2、eplanesinparentheses(221)5)Thedirectionsandplaneswhichhavesamemillerindicesareperpendiculartoeachothe匚作业2：原版教材第105页第18题18.Calculatetheanglebetween[100]and[111]inAl.Solution:ThecrystalstructureofAlisFee.Wecancalculatetheanglebetween[100]and[111]asuu^vv'+ww'7m2+v2+vv2+a/w，2+v'2+)v
3、,2lxl+Oxl+OxlVl2+o2+o2+a/12+12+129=54.73°作业3：原版教材第105页第19题the〈100〉17.Constructacoordinatesystematthecenterofacubicunitcellwiththeaxesparalleltodirections.Determinethetetrahedralangle,theanglebetweendirectionsfromtheorigintotwoendsofanyfacediagonal.Solution:刃:丄丄亠222八lxl-lxl-lxlco
4、s0=t=——.a/12+12+12•a/i2+12+12作业4：原版教材第105页第21题21.Givetheindicesofthepoints,directions,andplanesinthecubiccellsshowninFigureHP3-LSolution:Thefirststepistoselectanoriginandorientthecoordinateaxes・Wehaveelectedtousethebottombackleftcomerofthecubeasourorigin.Asshowninthefigure;Point
5、Ahascoordinate0,0,—;2PointBhascoordinate0,1,—;21PlaneF:TheinterceptsofFarc1,1,—;Takereciprocals:1丄2;Clearfraction:1,1,2;Citethemintopaientheses:(112)PlaneE:TheinterceptsofE:oo,oojTakingreciprocals:0,0,1DirectionC:2号朋标1丄01号坐标:1,0,1Oil(1)Determinethecoordinatesoftwopoints0,1,1(2)S
6、ubtractthecoordinatesofthesecondpointfromthoseofthefirstpoint;Cleatfractionsfromthedifferencetogiveindicesinlowestintegervales,(4)writetheindicesinsquarebracketswithoutcommas:Oil201(5)negativeintegervaluesareindicatedbyplacingabarovertheintege匚D:、111)ThecoordinatesofpointsGandHa
7、re0,0,—;0,—,0respectively;322)planeL:(1)determinetheinterceptsofplaneL:—(2)takethereciprocalsoftheintercepts:-2,2,3(3)clearfractions:-2,2,3(4)citeplanesinparentheses,placingbarsovernegativeindices:2233)planeK:—l,l,oo—>110丿4)directions:I1点：一丄,1,丄2点：0,1,0222-1:丄,0,—丄T101222点:0,0,
8、1作业5：原版教材第106页第22题21.Givetheindicesofthepoints,
