??? ????????? - PowerPoint PPT Presentation

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??? ?????????

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2.1 2.2 2.3 2.4 2.5 – PowerPoint PPT presentation

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Title: ??? ?????????


1
??? ?????????  
  • 2.1 ????? 2.2 ????? 2.3 ??????? 2.4 ???????
    2.5 ???? 2.6 ??????????

2
2.1 ?????
  • ??(electroplating)???????????(electrodepos- ition
    process), ???
  • ??(electrode)????,?????? ?????,
    ??????????????????

3
2.2 ?????
  • ????????????????(deposit),????????????????????????
    ???????????? ???????????????? ??????????????
    ???????????????

4
2.3 ???????
  • ???(electroplating) ????(electroless
    plating) 
  • ???(hot dip plating)  ?????(spray plating) 
  • ????(plastic plating) ????(immersion plating) 
  • ????(diffusion plating) ????(cathode supptering)
  • ??????(vacuum plating) ???? (alloy plating)
  • ???? (composite plating ???? (selective
    plating) 
  • ???? (through-hole plating)???(pen plating)
  • ?? (electroforming) 

5
2.4 ???????
  • ???????? (solution) ???,????????? ? (aqueous
    solution) ???,?? 30 ?????????????,
    ???????????Cu??Ni??Cr??Zn.?????????????????.?????
    ????????????????????????? ?????

6
?????????????
  • ????
  • ????
  • ???
  • ???
  • ??????
  • ????

7
??(solution)
  • ???????????(solute),???????????
    ?(solute)?????????????(aqueous solution)?
  • ?????,????????,????????????????(weight
    percentage)? ?????????(molal concentration)?

8
????(reaction of matter)
  • ????????,??????????,?????????????,?????????,??????
    ????????????????????????????

9
???(electrochemistry)
  • ????????( electrodeposition )??,????????(electrode
    )????,????????????????? ????????? ??????????????
  • ???(electrolyte)?????????????? (electrolytic
    solution)????????(ions),?????????
    (movement)?????????????(anode)????????(anion),????
    ????(cathode)??(migrate)??????? cations)?
  • ????????????????????(anode),??????????
    ????????(cathode)????????????(electrolysis)?

10
????(electrode potentials)
  • ??(electrode potential)?????(electrolytic)?????,??
    ?????????????(electrode potential)??????????????,
    ???????????????????(standard electrode)?
  • ?????(hydrogen standard electrode)????????0

11
  • ?????????Nernst equation???
  • EE0RT/nF ln aMn/aM  
  • E????  
  • E0????????(volt)  
  • R????(8.3143 J.K-1MOL-1)  
  • T????( K)  
  • n???????(??????)  
  • aMn???????(activity),???????,???????? 
  • ?? ???(concentration)C???????????????,?a r
    c????????,???????1 ?  
  • F??????    

12
??????(standard electrode potential)
  • ??????(standard electrode potential)??????????
    1(???)?????????1???????
  •  
  • ? EE0 
  • EE0RT/nF ln 1/1 
  • E00 E0   
  •  

13
  • ???????????????0,??????????? (REFERENCE
    ELECTRODE),?????????0
  • ????????????????????Li?? ????,????,???,???,???????
    ??(basic metal)????Au????????.????.????.?????????
    ??(noble metal)?

14
  • ?? ?? ?? ??
  •      Li -3.045               Co2
    -0.277    Rb
    -2.93                 Ni2 -0.250 
    K -2.924              Sn2
    -0.136  Ba2 -2.90             
        Pb2 -0.126  Sr2
    -2.90                 Fe3 -0.04  Ca2
    -2.87                  H
    0.000  Na -2.715               Sb3
    0.15    Mg2 -2.37   
               Bi3 0.20
  •       Al3 -1.67                As3
    0.30    Mn2 -1.18            
    Cu2 0.34 
  •       Zn2 -0.762               O2
    0.40 
  •       Cr3 -0.74                 Cu
    0.52 
  •       Cr2 -0.56                
    Hg22 0.789 
  •       Fe2 -0.441              Ag
    0.799   

15
Nernst ????
  • ???????????????,?????????,?????????,???????,??????
    ??????????????????????,???
  • ??????????????????????????? (electrolatic
    solution pressure)?p?????????????
    ????????(osmotic pressure)?p,????????

16
  • (1) PgtP?,?????,????,???????????,??
  •      ??????????????? 
  • (2) PltP?,??????????????????????,
  •      ??????????,?????????  
  • (3) PP?,????????

17
  • ??????????????????E,?1 mole????????,??????????nF
    , n?????????,???????,F??????,???????nFE,?????
  • ERT/nF ln P/P 
  • ?????????(activity)? aMn?????K,?P KaMn??E -
    RT/nF ln p/KaMn
  • E??????,?aMn1????????E ,? 
  • E0- RT/ nF ln P/K RT/nF ln 1 -RT/nF ln P/R 

18
  • ????????  
  • EE0RT/Nf ln aMn / aM    ???aM???????? 

19
????????????
  • ??????????????????.
  •  ??Cu ltgt Cu2e- ???? ???? ?????????  
  • Cu(R) ?Cu2e-  ????  
  • Cu? Cu2e-   ???? 
  • EE0-RT/F ln aCu/aCu

20
???????
  • ?????????????????????????,????????????????????????
    ????????

21
?????(liquid junction potential)
  • ?????????(diffusion potential),???????
    ???????????????,?????????? ,??????????,?????????

22
???(overvoltage)
  • ??????,????????????????? ??????????,???????????,??
    ???????,???????????????????????????(polarization)
    ?????????????????????????????????????(hydrogen
    overvoltage),?????????????H2??,???????????,? ?H2E
    i-Eeq  ???H2????, Ei???? ,Eeq???? 
  • ????????????????????,???????????????????????? 

23
?????????
  • 1.??????(activiation overvoltage)
  • 2.?????(concentration overvoltage)
  • 3.???????(solution resistance overvoltage)
  • 4.????????(passivity overvoltage)

24
??????
  • ????,?????????????????? ,????????,???????????????
    ????,????????????,??Tafel????
  • ? actab log i 
  •   b???,i???, ?act??????????i??? act??,??? ?
    act??????,??????,?????????

25
?????(
  • ?????,????????????????????? ????????,?????????,???
    ???,??? ?????????
  • ????????????????,????,???????????????,????????,???
    ???????

26
???????
  • ???????IR???,?????????IR???????????,?????IR???????
    ???
  • ????????????,?????????????,???IR????????????????,?
    ???????????????

27
????????
  • ????,?????????????,?A1?????,?????????,????????????
    ?????,????????????????

28
??????
  • ???????,??????????,????? ??????????????????????,??
    ?????????,???????,??????? ??,?????????????????????
    ???????????????????????

29
?????????
  • ????????????????,?????????????,????,???????????
    ???????????????????,??????????,?????????????????,?
    ???????????????????????? ???????,???????

30
?????
  • ?????????,???????????,? ????????????????????????
    ????????????????????????????????,??????????

31
????
  • ???????????????????,??? ?????????,??????????????
    ??????????????????????????????????????

32
????
  • ??????????????
  • ??????? ????
  • ????????? ???
  • ??? ??????
  • ?????? ???????????
  • ???? ??????
  • ???? ????
  • ????

33
?????????
  • ????,?????????????? ??????????????
  • ??????(work)???(rack)?
  • ??(anode)?
  • ???(bath solution)?
  • ??( plating tank )???????(heating or colling coil
    )?
  • ????

34
??????
  • ?????????
  • ????????
  • ????????????
  • ???????????????
  • ??????????????????
  • ??????????
  • ???????????????????
  • ???????????????????
  • ??, ????????

35
???????
  • ????,?????????????????????????????????????????????
    ?????????????????????????????????????,????????????
    ?????????????????????,??? ????????????????????????
    ???????????????

36
????,????(plating bath)
  • ???????????????????????,??????????????????????????
    ???????pH???2???,???????????,??????????
    ???pH??25.5????,???????????pH???7???,????????????
    ?????????????

37
?????????
  • ?????????????????
  • ??????,????
  • ????CuSO4NiSO4
  • ????????,???????,
  • ??????????????
  • ?,????????????
  • ????

38
?????????
  • ????????????????,???????,???????????????????
  • ????????????pH???,??pH???????,???????(pH58),pH??
    ??????
  • ???????,?????????????,??????,?????,??????,???
    ???????????????????????????????
  • ?????????????,???????,??????,??????????????????
  • ?????????????????????????????????????????? 
  • ???(wetting agent) ??????????????

39
?????
  • ????????????????????????????????????,?????????????
    ??,?pH???????????????????????????

40
?????
  • ?????????????,???????Hull??(Hull cell
    test)????????????,??????????????????????????,?????
    ??????????????????????????????????????????????????
    ???

41
????
  • ????????????????,???????????????????????????,?????
    ???????????????????????(anode basket)??
  • ????????????,??????????????,??????????,?
    ???????,?????????????????? ???

42
???(anode bag)
  • ??????????????,?????????????????,???????,?????????
    ??????????????????,????????,??????,???????,???????
    ,?????????????????

43
????
  • ????????????,?????????????????????,???????????????
    ??? ????????????????????????????

44
??????
  • ??????,?????(pretreatment),??????
  • 1.??????????????????,??????
  • ????????????????????
  • 2.?????????????????????
  • 3.?????????????,?????????????????????????????????
    ??????
  • 4.?????????,???????????????
  • 5.???????????,?????

45
????(rack)
  • ???????????????????,??????1.?,?????????2.??,?????
    ?????3.??,????????4.????,??????,????????????
  • ?????????1.????,2.?????,3.????????,4.?????,5.?????
    ??????, 6.?????????????????,7.??????????

46
????(rack)
  • ?????????
  • 1.????,????????,???????,???????????
  • 2.?????,?????????,????????????????????????
  • 3.??,????????????,????????????????????
  • 4.T????????,??????????,????????????

47
????(rack)
  • ????????????
  • 1.???,
  • 2.??,
  • 3.????,
  • 4.??????,
  • 5.????,
  • 6.????,
  • 7.????????

48
????(rack)
  • ???????????????,????????
  • 1.??????????
  • 2.?????????????,????
  • ???
  • 3.???????
  • 4.?????????
  • 5.???????
  • 6.??????,???????

49
???????????
  • 1.?????? 12.????
  • 2.????? 13.????
  • 3.????? 14.?????
  • 4.??? 15.?????
  • 5.????? 16.?????
  • 6.???? 17.?????
  • 7.??????? 18.??????????
  • 8.??? 19.????
  • 9.pH??
  • 10.???
  • 11.???

50
??????
  • ???????????????????,????????????
  • 1.???(adhesion),????????????,??????????????,????
  • (1)???????,??????????
  • ????
  • (2)???????????
  • (3)??????????????????
  • ???

51
??????
  • 2.???(cohesion),?????????????,????,???????????????
    ????(1)????,????,(3)??,??????,???????????????
  • 3.???(continuity),????????(pore),?????????????????
    ????,????,?????,?????

52
??????
  • 4.???(uniformity),????????????????????????????????
    ??????????,?????????????????????Haring????????????
    ???Hull?????
  • 5.???(appearence),???????,?????,????,?????????????
    ??????????????????,?????????????????????????????

53
??????
  • 6.??(stress),???????????,??????????,????????(1)??
    ?????,(2)????,(3)?????????????????
  • 7.????????????????????????????????????????

54
???????
  • ?????(Faraday's Law)
  • ?1???5??????5??,?????,??????100
  • ????(???/(???96500))(????????)  
  • W(A/(n96500))(ITCE) (63.54/(296500))(55
    6060100)31.8(g)
  • ????31.8g??
  • ?2??10???2.5g???NiSO?????????
  • ????100?
  • I( (n96500)/(A))((W)/(tCE))
  • ((296500)/(58.69))((2.5)/(1060100))13.7
  • ????13.7??

55
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