Abstract
Cylindrical Al2O3/Ce–TZP functionally graded com posites were fabricated by electrophoretic deposition and pressureless sintering in air. Negatively charged Ce–TZP and Al2O3 powders were deposited on a cylindrical electrode from an acetone based suspension. A continuous composition change is realised by chang ing the composition of the suspension. Sintering of the FGM at different temperatures, showed that a temper ature higher than 1550°C was necessary for densification. The resultant FGM cylinder with 5·6 mm dia. had an ideal mechanical structure: a central open channel, a tough Ce–ZrO2 core (KIc > 10 MPa m1/2), a continuous gradient interlayer, and a hard surface layer with HV higher than 15 GPa.
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References
1.
MORTENSEN
A.
and
SURESH
S.
Int. Mater. Rev. , 1995 , 40 , 23 –65 .
2.
SURESH
S.
and
MORTENSEN
A.
Int. Mater. Rev. , 1997 , 42 , 85 –116 .
3.
NEUBRAND
A.
and
RÖDEL
J.
Z. Metallkd. , 1997 , 88 , 358 –371 .
4.
KURIHARA
K.
,
SASAKI
K.
,
KAWARADA
M.
, and
GOTO
Y.
Thin Solid Films , 1992 , 212 , 164 –168 .
5.
EROGLA
S.
and
GALLOIS
B.
Surf. Coat. Technol. , 1991 , 49 , 175 –278 .
6.
SAMPATH
S.
,
HERMAN
H.
,
SHIMODA
N.
, and
SAITO
T.
MRS Bull. , 1995 , XX , 27 –31 .
7.
KESLER
O.
,
FINOT
M.
,
SURESH
S.
, and
SAMPATH
S.
Acta Mater. , 1997 , 45 , 3123 –3134 .
8.
MUSIL
J.
and
FIALA
J.
Surf. Coat. Technol. , 1992 , 52 , 211 –220 .
9.
STANGLE
G. C.
and
MIYAMOTO
Y.
MRS Bull. , 1995 , XX , 52 –53 .
10.
NIEDZIALEK
S. E.
,
STANGLE
G. C.
, and
KAIEDA
Y.
J. Mater. Res. , 1993 , 8 , 2026 –2034 .
11.
FENG
H. J.
and
MOORE
J. J.
J. Mater. Eng. Perform. , 1993 , 2 , 645 –650 .
12.
JASIM
K. M.
,
RAWLINGS
R. D.
, and
WEST
D. R. F.
J. Mater. Sci. , 1993 , 28 , 2820 –2826 .
13.
ABBOUD
J. H.
,
RAWLINGS
R. D.
, and
WEST
D. R. F.
Mater. Sci. Technol. , 1994 , 10 , 414 –419 .
14.
Al
X.
,
ZHAO
J.
,
HUANG
C.
, and
ZHANG
J.
Mater. Sci. Eng. , 1998 , A248 , 125 –131 .
15.
MARPLE
R.
and
BOULANGER
J.
J. Am. Ceram. Soc. , 1994 , 77 , 2747 –2750 .
16.
TUFFE
S.
and
MARPLE
B. R.
J. Am. Ceram. Soc. , 1995 , 78 , 3297 –3303 .
17.
WATANABE
Y.
,
YAMANAKA
N.
, and
FUKUI
Y.
Composites , 1998 , 29A , 595 –601 .
18.
SARKAR
P.
,
HUANG
X.-H.
, and
NICHOLSON
P. S.
J. Am. Ceram. Soc. , 1993 , 76 , 1055 –1056 .
19.
ZHAO
C.
,
VLEUGELS
J.
,
VANDEPERRE
L.
,
BASU
B.
, and O. VAN DER BIEST 1998 , 17 , 1453 –1455 .
20.
POWERS
W.
: J. Electrochem. Soc. , 1975 , 122 , 490 –499 .
21.
ANSTIS
G. R.
,
CHANTIKUL
P.
,
LAWN
B. R.
, and
MARSHALL
D. B.
J. Am. Ceram. Soc. , 1981 , 64 , 533 .