326page

314 q -d E^11 6H =J 5. O F ++q ++ol "lr.tlt e{str eEL€ ^Jq @ ?lzl^JEIE r*€ t+ii ^JEX @ ++t +EtEg BC+ ^JEX FoltrI. 6. €+ ++ Ae+ B7l d tsEql 44 aI^J+ -r.^Jql^l "lul* ulg-ss r*nlE +E "ll olag dgt.*nl+ 6Jr+. 2dBol d$l+rl= "J5zl 9*.l. ^.1-tr olr- +E"J *aIaI9 l*nl o* 9zl +Ag "JE "llel trtls= +eB ^JEIE+ +r+. 7. al^Jdql^] ^14+ *r= r^Jdql^.1 $s.a1q l*;i a! "J.trI. *f.+_Bd ol 6IE "l : 3sz1z1 3 ol*il = € ^J 6I+ ts z++d ql EB6IE ae (primary crystal) oE a]*nl5 e=6147I +egEql EBoIE +eH}+(eutectic reaction)41 E6Iq aa$xfl+pl$;1E *Ag e++4. +d cF. oo| t]]+ BE *fls.(r*E) *dsE 3s.21 zJ6IElql trle} r*E= Ar+4. +d DG= pql q + Af+E + dlE= +4dtr}. d*Et+ +ql^-l ole+ rJE ^JEIE= tE='J74loIE Cu-Au, Ar- Si, Ag-Si, Bi-Sn, Ag-Cu, Au-Co, Cd-Sn, Pb-Sn4l Fol 91trI. 8. ts41 aa$;l (c)+8zl (E) = pr*il (F ) 7Ig ole+ ?ol + r^Jql +rlzl 4I*6Iq 4E l^Jg C C 6I. Hl+g sa Hl*ol4 +4. dzI o --'l .l^J L = J.^Jc(fN)+"-4tH 7lg ole+ rJol 8"-qql^l r^Jr+ tr}. ++E -&.lg +^lql cc6|= HI+g rJeHI+ (monotectic reaction) o1 + .J4. e. *Aal .J+e-l €rl? =zlg *e=Ce-l B?ol olqE f M E= Nq r^Jol a =6171 ^l 461q, ol a g =zJ (primary crystar) ol zI ++. *tzl {l6J -Jql r4?+ 4 eBg ==zlalul +agEcl ol =E "ltt pzl r^J ^Iolql^] *ag +.trI. a_ 2.4 g +++ plrllf, rJt, E= +^JE 4o14, ol4ol eaBg ^Iol= illgl^l *tzl Et4.