Self-propagating high temperature synthesis (SHS) processes have previously been used to manufacture various high strength/temperature materials. A method for combining this process with the selective laser sintering (SLS) for rapid prototyping has been investigated. TiC-Al2O3 composite has the potential for high wear resistance, high hardness and toughness. By controlling the atmospheric conditions it is possible to prevent the oxidation of carbon allowing the reactants, TiO2, Al and C, a greater opportunity to develop into the required TiC-Al2O3 composite. This paper reports basic experimental investigations on the controlling of the atmospheric conditions and also the possibility of controlled synthesis using a 60W diode laser.

1.
Meiners
W.
,
Wissenbach
K.
and
Poprawe
R.
,
Direct Selective laser sintering of steel powders
Laser Assisred Net Shape Engineering 2 Proc of the LANE
97
, (
1997
),
615
621
.
2.
Kai Chua
Chee
,
Three-dimensional rapid prototyping technologies and key development areas
.
Computing & Control Eng J
,
August
(
1994
).
3.
A.
Kochan
,
Rapid developments in rapid prototyping
,
Assembly Automation
Vol
15
No.
4
, (
1995
),
18
19
.
4.
L.
Li
,
K. L.
NG
and
A.
Slocombe
,
Diode laser sintering of compacted metallic powders for desk top rapid prototyping
,
Proc of 7th European of Rapid Prototyping and Manufacturing
, (
1998
)
281
296
.
5.
L.
Li
,
A.
Slocombe
and
K. L.
NG
, Selective laser sintering of compacted Cu/Sn powders,
Proc ECALEO’ 98
,
Laser Institute of America, laser Material Proc
, Vol
85E
(
1998
)
38
47
.
6.
R.
Raghunathan
,
R.
Chowdhury
,
K.
Jagannadham
and
J.
Narayan
,
Synthesis of highly dense beta -SiC pellet by self-propagating high temperature
.
Materials and Manufacturing Processes
Vol
10
(
1995
).
559
563
.
7.
R.
Pampuch
,,
L.
Stobierski
and
J.
Lis
,
Synthesis of sinterable beta-SiC powders by a solid combustion method
. ”,
J. of the American Ceramic Society
Vol
72
(
1989
),
14334
1435
.
8.
R
Pampuch
,
J.
Lis
,
L
,
Stobierski
,
M
Tymkiewicz
,
Solid combustion synthesis of Ti//3SiC//2
. ”,
J. of the European Ceramic Society
Vol
5
(
1989
)
283
287
.
9.
J.
Subrahmanyam
,
R
Rao
,
R
Mohan
.
Combustion synthesis of MoSi//2-TiC composites
.
J. of Materials Research
Vol
10
(
1995
), p
1226
1236
.
10.
J. Y
Hung
,
L. L.
Ye
,
Y. K
Wu
,
H. Q
Ye
,
Direct evidence for combustion reaction on TiNi/TiC composites formation by mechanical alloying
.
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Vol
26
(
1995
),
2755
2759
.
11.
A.
Niiler
,
L. J
Kecskes
,
Impurities in the combustion synthesis of titanium carbide.
”,
J.of the American Ceramic Society
. Vol
72
(
1989
),
655
661
.
12.
R. V.
Raman
,
S. V
Rele
,
S.
Poland
,
J
Lasalvia
,
M. A.
Meyers
,
A.R
Niiler
,
One-step synthesis of dense titanium carbide tiles
.
JOM
Vol
47
(
1995
),
23
25
.
13.
M. E.
Mullins
,.
E.
Riley
,
Effect of carbon morphology on the combustion synthesis of titanium carbide
.
J.of Materials Research
Vol
4
(
1989
),
408
411
.
14.
Zuhair A
Munir
,
Sarojini
Deevi
,
Maryam
Eslamloo-Grami
,
Synthesis of titanium nitride by a self-sustaining combustion method
.
High temperature- High Pressures
Vol
20
(
1988
), p
19
24
.
15.
McCauley
,
W James
,
Historical and technical perspective on SHS
,
Ceramic Engineering and Science Proceedings
Vol
11
(
1990
),
1137
1181
.
16.
M. I.
Shilyeav
,
V. E
Borzukh
,
A. R
Dorokhov
On Laser Ignition of Powder nickel aluminium systems
.,
Fizika Goreniya I Vzryva
Vol
30
(
1994
),
14
18
.
17.
Z. A
Muir
,
U.
Anselmi-Tamburini
.
The kinetics of the self-propagating high temperature synthesis process
,
Mat Science Report
, Vol
3
(
1989
),
277
.
18.
A
Slocombe
and
L
Li
, “
The Selective Laser Sintering of TiC-Al2O3O Composite with Self -Propagating High Temperature Synthesis
”,
Proceedings of the International Conference on the Advances in Materials and Processing Technologies, AMPT
99
, 3-6
August
1999
. V II, p
1261
.
19.
N.
Sata
,
Z. A
Munir
,
Proceedings of symposium on high temperature materials chemistry
.
V. W. B.
Johonson
and R. A.
(eds),
The Electronchemical Society
,
Penninton, NJ Proceedings
Vol
90
(
1990
)
This content is only available via PDF.
You do not currently have access to this content.