Abstract
A manufacturing method of high toughness TiB2–Al2O3 ceramic composites by reactive hot pressing via exothermic reactions with Al, B2O3, C and TiB2 has been developed. The usage of fusible initial components (Al and B2O3) in the hot pressing procedure allowed forming dense ceramics with homogeneous fine structure at 1900°C and 20 MPa (after 8 min exposure) without any grinding of the initial powders. The hot pressed TiB2–Al2O3 composites exhibit the fracture toughness of 9 MPa m1/2, which is much higher than that of both single phase TiB2 (6 MPa m1/2) and Al2O3 (4 MPa m1/2) ceramics.
Get full access to this article
View all access options for this article.
References
1.
Wang
W
,
Fu
Z
,
Wang
H
Yuan
R
: J. Eur. Ceram. Soc. , 2002 , 22 , 1045 –1049 .
2.
Munro
RG
: J. Res. Nat. Inst. Stand. , 2000 , 105 , (5) , 709 –720 .
3.
Koenigshofer
R
,
Furnsinn
S
,
Steinkellner
P
,
Lengauer
W
,
Haas
R
,
Rabitsch
K
Scheerer
M
: Int. J. Refract. Met. Hard Mater. , 2005 , 23 , 350 –357 .
4.
Li
J
,
Cai
Z
,
Guo
H
,
Xu
B
Li
L
: J. Alloys Compd , 2009 , 479 , 803 –806 .
5.
Meyers
A
,
Olevsky
EA
,
Ma
J
Jamet
M
: Mater. Sci. Eng. A , 2001 , A311 , (1–2) , 83 –99 .
6.
Evans
AG
and
Charles
EA
: J. Am. Ceram. Soc. , 1977 , 59 , (7) , 371 –372 .
7.NIST Chemistry WebBook: http://webbook.nist.gov/chemistry/ (accessed 3 May 2013) .
8.
Deng
J
,
Cao
T
Liu
L
: J. Eur. Ceram. Soc. , 2005 , 25 , (7) , 1073 –1079 .
9.
Gu
M
,
Huang
C
,
Xiao
S
Liu
H
: Mater. Sci. Eng. A , 2008 , A486 , (1–2) , 167 –170 .
10.
Morrell
R
: ‘Handbook of properties of technical and engineering ceramics’; 1987 , London , HMSO .
11.
Torabi
O
and
Ebrahimi-Kahrizsangi
R
: Int. J. Refract. Met. Hard Mater. , 2013 , 36 , 90 –96 .
12.
Krukovich
MG
: Metalloved. Term. Obrab. Met. , 2005 , 10 , 9 –17 .
13.
Rattanachan
S
,
Miyashita
Y
Mutoh
Y
: J. Eur. Ceram. Soc. , 2003 , 23 , 1269 –1276 .
14.
Gosset
D
and
Brovot
B
: Prog. Nucl. Energy , 2001 , 38 , (3–4) , 263 –266 .
15.
Martin
RH
: ‘Composite materials: fracture and fatigue ’, Vol. 5, 465; 1974, New York: Academic Press.
16.
Popov
AYu
,
Chornobuk
SV
Makara
VA
: Deform. Fract. Mater. , 2009 , 1 , 21 –27 .