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JAERI -M ~AERI-M 82-152 - International Atomic Energy ... -M 82-152 a * ML * 1) w % m Japan Atomic Energy Research Institute ~AERI-M 82-152 PyCの蒸着及び組織 198 2年11 月

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  • JAERI -M82-152

    a * ML * 1) w % mJapan Atomic Energy Research Institute

    ~AERI-M

    82-152

    PyC

    198 211

    Japan Atomic Energy Research Insti

  • JAERI-MUtf- hit,wRg-AT,

    JAERI-M reports are issued irregularly.Inquiries about availability of the reports should be addressed to Information Section

    Division of Technical Information, Japan Atomic Energy Research Institute, Tokai-mura,Naka-gun lbaraki-ken 319-11, Japan.

    Japan Atomic Energy Research Institute, 1982

    m

    JAERI-M

    (319-11

    )

    (319-11)

    JAERI-M reports are issued irregularly.

    Inquiries about availability of the reports should be addressed to Information Section

    Division of Technical Information. Japan Atomic EneryResearch Institute. Tokai-mura.

    Naka-m lbaraki ken 319-11. Japan.

    @Japan Atomic Energy R Institute.1982

    ()

  • J A E R I - M 8 2 - 1 5 2

    PyC a S IP

    -in ft-% in m m

    (1982^10 J! 7 B S D

    T n

    }AERI-M 82-152

    PyC

    ( 1982 10 7)

    2

    UOz

    . 10000C

    n 750-8500C

  • JAERI-M 82-152

    Deposition and Microstructure of Pyrolytic Carbon

    Kiyoyuki OGAWA and Katsuichi IKAWA

    Division of Nuclear Fuel Research,

    Tokai Research Establishment, JAERI

    (Received October 7, 1982)

    Two kinds of experiment concerning pyrolytic carbon deposition

    have been carried out. In one experiment, an attempt was made

    to coat alumina particles as well as buffer-coated U02 particles

    with pyrolytic carbon of laminar structure by means of a fluidized

    bed technique. Benzene was used as the carbon source and the

    temperature was 100(fc.

    In the other experiment, carbon deposition was made on graphite

    surface. Possibility was tested to obtain uniform coating along

    the direction of gas stream. Carbon source, in this case, was

    mainly n-hexane and the temperature ranged 750~850C. Microstructure

    of the deposit was studied in both experiments.

    Keywords: Pyrolytic Carbon, Deposition, Fluidized Bed,

    Microstructure Benzene, n-hexanet UO2 Particles,

    Graphite Surface

    JAERI-M 82-152

    Deposition and Microstructure of Pyro1ytic Carbon

    Kiyoyuki OGAWA and Katsuichi lKAWA

    Division of Nuc1ear Fue1 Research Tokai Research Estab1ishment JAERI

    (Received October 7 1982)

    Two kinds of experiment concerning pyrolytic carbon deposition

    have been carried out. In one experiment an attempt was made

    to coat alumina particles as well as buffer-coated U02partic1es

    with pyro1ytic carbon of larninar structure by means of a fluidized

    bed technique. Benzene was used as the carbon source and the

    temperature was 1000.

    In the other experiment carbon deposition was made on graphite

    surface. Possibi1ity was tested to obtain uniform coating a10ng

    the direction of gas stream. Carbon source in this case was

    -mainly n-hexane and the temperature ranged 750-S50C. Microstructure of the deposit was studied in both experiments.

    Keywords: Pyrolytic Carbon Deposition Fluidized Bed Microstructure Benzene n -hexane U02 Particles Graphite Surface

    11

  • JAERI-M 82- 152

    1. *.#: 1

    2. %mm 33. nj3& 3

    4. Hf*|*i&Tjn% 4

    5. t t tb 8

    m # 88

    Contents

    1. Introduction 1

    2. Experimental Sample 3

    3. Experimental Procedure 3

    4. Experimental Results and Discussion 4

    5. Conclusion 8

    Acknowledgement 8

    References 8

    JAERI-M 82-152

    1.

    2.

    3.

    4. '..

    a

    'iqaqdaqnORuno

    Conents

    1. Introduction'-~.------..1

    2. Experimenta1 Samp1e ---- 3

    3. Experimenta1 Procedure ..'---------.3

    4. Experimenta1 Resu1ts and Discussion ---. 4

    5. Conclusion" F .....8

    Acknow1edgement ------------------- 8

    References ...-------- . 8

    l

    l

  • JAERI-M 8 2 - 1 5 2

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    - 1 -

    JAERI-M 82-152

    1.

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    Kr Xe 12) ISiC

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    PlK

    PyCICPyC

    PyC(31

    u Cdroplets)"""

    4pyCo

    L o

    2. l

    3.

    4

    l Linke

    lPyC

    LT 1 14000

    C

    0.07-0.7m 0.3 0.9mlC

    TEM ()

    lm(4)

    K

    PyC

    Cx Hy -+ XC ++H2

    C(567)

    K

  • JAER1-M 82-152

    L TJIS; L T s JI i

    7 5 i - -

    2.

    3.

    "C ^D

    ( 002 )

    PyC

    iJ-7f

    (O]

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    SPyC

    1 . 0 j a m / m i n

    - 2 -

    JAER1-M 82-152

    (31

    1m

    () PyC

    ()

    C

    (8)

    PyC 4 .

    (9).

    1. Lc

    2. Lc

    3. h""

    Lc

    TEMK PyC

    Y(002)

    u ".:

    (002)""

    ""(l0)

    PyC1.0rn/rnin(11)

    xPyC

    ..pe t a 1 1 i ng ..(1213)

    PyC

    PyC

    FP

    -2-

  • JAERI-M 82-152

    2. m m

    L, UO2

    P y C

    ~ 7C 0 /am CD '-y 7 r -

    7 6g/cm 3 I G - l l H^IS^^^fflLfco HI

    bfc P y C HiftfC U^ftttHcD^ y -tf y *J i n - Hexane

    1200mm

    23C)

    7 r -

    c

    - 3 -

    JAERI-M 82-152

    2.

    600-850m

    U02 670-700m

    PyC

    PyC1.7 6 g/cm31G -11 1

    10mm. 10mm l10

    PyC PyC n-Hexane

    3.

    3.1 PyC

    U02 PyC 30m

    Fig.llC(15)

    1 2g.

    27.

    1200mm 60 T

    8

    PR 1000.C

    2300cc/mi n

    700cc/mi n

    10000

    C

    1 PyC

    2(~

    230C) PyC

  • J A E R I - M 8 2 1 5 2

    3.2

    ( I )

    lig. 2

    fco

    (li)

    5 J 'JS 6CfiKTI5 ^ -

    8f[ffiPyC

    lm,

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    Lfc n -Hexane

    4.

    4.1

    P y C

    2.

    3.

    4.

    , PyC

    P y C

    1. " S p o u t i n g " : * * + 'J + #

    Q6.17)

    - 4 -

    JAERI -M 82-152

    3.2 PyC

    i

    1G -1 1ICPyC

    (i) Fig. 21C 1m. 27 olIG 1

    Je

    PyC 6l

    n-Hexanel OOCI

    T

    i) 10Fig.

    3Kl (i )

    10 PyCPR

    5J!J 60C Y n-Hexane

    ooCIC 6 7l

    PyC

    4.

    4. 1 PyC

    U6.17) l PyC

    PyC Ul.18)

    4K

    1 !f: J

    2. :

    3. r~

    4.

    . PyC

    PyC

    (3)

    1. .. Spou t i ng ..

    -4-

  • JAERI-M 82-152

    2. " bubbl ing" :

    3. "Slugging" :

    Fig-

    No. 3 Iffiii No. 1

    cc/mini

    JUJ y if

    Fig. 4 (b) ft-5

    1(17 5 - P y C

    PyC

    ^o Fig.

    (in)

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    Fig.

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    LT, droplets

    {SKIb7jc*fllfi-e(i, droplets

    si tes i

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    - 5 -

    JAERI-M 82-152

    2. "bubbling"

    3. Slugging J

    12. 3

    Tab1 e 1 1-3

    4-6

    PyC

    No.1 PyC F ig. 4(a)1C

    7 No.3 No.1l

    OPTAF() 1.05

    2300cc/m i n

    400cc/min500/minPyC F ig. 4(b)

    7)

    PyC Fig.4(C) 1 K

    PyC 2

    Table 1 l 2(19)

    BAFOPTAF

    2 (1)( +OPTAF) BAF = ------2

    (OPTAF)

    OPTAF20m

    12m

    30% OPTAF

    BAF4

    Fig. 4(d) PyC PyC

    Fig.51CX 2

    'J."30m PyC 2.07

    g/cm3PyCIC

    Y

    . droplets

    droplets

    drpplets sites

    .

    cones(8)

    Kaae Y

    -5-

  • JAERI-M 8 2 - 1 5 2

    4 2 X"J-:/

  • J A E R I M 8 2 - 1 5 2

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    ig.

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    , Fig.

    Fig.

    12(C^1-O

    , No.

    No.

    Lfc Py C

    btl&Ai, Fig.

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    fCo Fig.

    Py C ff

    Fig.

    x i; -

    - 7 -

    JAERI ~M 82-152

    72j 8000CiJttt100cc/min

    Y11. No.9No.4

    18mg30%

    30m

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    No1.4 9Fig.1 0

    8500

    C150ccTIin

    . 71Fig.ll

    F ig. 10

    lO. F ig. 9No.1

    Fig. 11

    91 PyC

    PyC

    10m~ 10%;

    120 ~ 30m

    No.1. 6 101Fig.121C

    No.610 YNo.l 14

    No.

    61030. 14 91

    No.1. No. 1

    Nu. 10

    7500

    C130c/min

    PyC

    Fig.131 8500

    C 150cc/min

    PyC 8000C 100cc/minPyC

    Fig. 13(a)l

    . Fig.13(b)l Fig.13(c)(b)

    PyCI 7

    PyC

    PyCPyC

    -7-

  • JAERI-M 8 2 - 1 5 2

    5. t t

    ayt'^i: 32 50 cc/min

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    (2) P . E . B r o w n , R . L- F a i r c l o t h : J . N u c l . M a t . 5 9 ( 1 9 7 6 ) 2 9

    (3) J . L i n k e , K . K o i z l i k , H , ' N i c k e l : J u l - 14 17 ( 1 9 7 7 )

    (4) A- A b d e l - H a l i m , E - G y a r m a t i , H . N i c k e l : J u l - 1 7 1 4 ( 1 9 8 1 )

    (5) L . S i i t t e r l i n : K F A - B e r i c h t , J u l - 7 3 5 - R W ( 1 9 7 1 )

    (6) R . H a a n g e , E - G y a r m a t i , H- N i c k e l : J u l 9 4 6 - R W U 9 7 3 )

    (7) R . A v n i , J . D . W i n e f o r d n e r , H . N i c k e l : J u l - 1 1 8 8 ( 1 9 7 5 )

    (8) J - L . K a a e , T - D . G u l d e n , S . L i a n g : C a r b o n 10 ( 1 9 7 2 ) 7 0 1

    (9) J . C . B o k r o s : C a r b o n 3 ( 1 9 6 5 ) 17

    (10) E . P o l l m a n n , J . P e l i s s i e r , C - S - Y u s t , J . L . K a a e : N u c l , T e c h ,

    3 5 ( 1 9 7 7 ) 3 0 1