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112 ^ll6g Eftl 9ql^.1 t++ ,)* A, B+= f+E Er+Cl ql+ gtol4 f++r.Iql^lE "l v 5e+ flzl, el= =E trB 0-sl9 (a);lB EJ^lCqa(NiG3)g -H-F Llael sBql ts9i41 6lz}. rlZI9 EE"il 4zl -r4t gEq El+tr^.1 +4zl Fglgi(tracer isotopes)E trH 0-sl9 (b)e+ ?ol "Jd+ qa 49E dTl4 oE +eq +c.J zlzJ${o1 ^lt"I tr}fl Tl6J€4. ^l<}ol 6tsq eq6J +q= tr? o-sl9 (c)4 ?ol tdsl(rromogen2ation)zI $ggErl ol zl+ d+Aol f+.J Ee Lilql^l .Jq +. flzlE9 olt€^Jg=Al zlzl+t(self diffusion)ol4 ++. r4l F zfl ol^JE CEg=- ol+qal oJ+ Lllql^l flzlE ^J.g'Z!e-l olFg ^J-g'+t(inter diffusion)ol+ +tr}. 44 x,---------> (b) ral 6-5 ^lTlqtol ql F+ ++AE tEHtrI. trFe-l HlBs-a='J + S,ep=. olqiol= EJ^I1 F9l gi= ol+++. + HJ^IC Fggr= +qg qlql od, pd,7d FE *^Idg *= 6IE-tr 'J^ldg +A6Iq J- €ztlE "J + glt tr]+ol ,J^Idel zlstrpei EL+g = EJ^lCflzI9 tE= oJ itl 914. trB 0-0l4lri A4 Bz| s-F Feolr A+ql= EJ^IC Feg +=qr 6IE gE q 1.0 1.0 1.0 olrt T To '"' (a) (c) (b) AIEEJTI +t?l^l -Q-nil-=-4. O"ll E- d5+ ?.!xl(Do) Ed+oilLl^l(o) Cu Cu Zn Ni Mn C C AI Ag Cu Fe(y) Fe(z) Fe(a) Fe(z) 2.0(cnflsec) 5.9 x 10-5 0.033 0.5 0.35 0.0079 0.21 33.9(kcal/mol) 24.8 38.0 66.0 67.5 18.1 33.8