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ASTM Selected Technical Papers
Mechanical, Thermal and Environmental Testing and Performance of Ceramic Composites and Components
By
MG Jenkins
MG Jenkins
1Department of Mechanical Engineering
University of Washington
?
Seattle, WA 98195-2600 Symposium co-chair and co-editor
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E Lara-Curzio
E Lara-Curzio
2
Mechanical Characterization and Analysis Group Oak Ridge National Laboratory
?
Oak Ridge, TN 37831-67064 Symposium co-chair and co-editor
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ST Gonczy
ST Gonczy
3
Gateway Materials Technology
?
Mt. Prospect, IL 60056 Symposium co-chair and co-editor
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ISBN-10:
0-8031-2872-X
ISBN:
978-0-8031-2872-9
No. of Pages:
340
Publisher:
ASTM International
Publication date:
2000

Ten different ceramic matrix composite (CMC) materials were subjected to a constant load and temperature in an air environment. Tests conducted under these conditions are often referred to as stressed oxidation or creep rupture tests. The stressed oxidation tests were conducted at a temperature of 1454°C at stresses of 69 MPa, 172 MPa and 50% of each material's ultimate tensile strength. The ten materials included such CMCs as C/SiC, SiC/C, SiC/SiC, SiC/SiNC and C/C. The time to failure results of the stressed oxidation tests will be presented. Much of the discussion regarding material degradation under stressed oxidation conditions will focus on C/SiC composites. Thermogravimetric analysis of the oxidation of fully exposed carbon fiber (T300) and of C/SiC coupons will be presented as well as a model that predicts the oxidation patterns and kinetics of carbon fiber tows oxidizing in a nonreactive matrix.

1.
Spriet
,
P.
and
Habarou
,
G.
Applications of CMCs to Turbojet Engines: Overview of the SEP Experience
,”
Key Engineering Materiels
, Vols.
127–131
, pp. 1267–1276,
1997
.
2.
Effinger
,
M. R.
,
Koenig
,
J, R
, and
Halbig
,
M. C.
, “
C/SiC Mechanical and Thermal Design Data for a Turbopump Blisk
,” Proceedings of the 21st Annual Conference on Composites, Materials, and Structures, Edited by
Opeka
Mark M.
,
Cocoa Beach, Florida
, January 26–31, pp. 273–289,
1997
.
3.
Herbell
,
T. P.
and
Eckel
,
A. J.
, “
Ceramic Matrix Composites for Rocket Engine. Turbine Applications
,”
Transactions of the ASME
, Vol.
115
, pp. 64–69;
1993
.
4.
Herbell
,
T. P.
and
Eckel
,
A. J.
, “
Ceramic Composites Portend Long Turbopump Lives
,” published in the Proceedings of the 1993 SAE Aerospace Atlantic Conference and Exposition,
Dayton, Ohio
, April 20–23, 1993.
5.
Koenig
,
J. R.
,
Eckel
,
A. J.
,
Halbig
,
M. C.
,
Clinton
,
R. G.
,
Effinger
,
M. R.
, “
CMC Material Robustness Program
,” Proceedings of the 23rd Annual Conference on Composites, Materials and Structures,
Cocoa Beach, Florida
, January 25–28, 1999.
6.
Lamouroux
,
F.
,
Bourrat
,
X.
, and
Naslain
,
R.
, “
Structure/Oxidation behavior Relationship in the Carbonaceous Constituents of 2D-C/PyC/SiC Composites
”,
Carbon
, Vol.
31
, No
8
, pp. 1273–1288,
1993
.
7.
Filipuzzi
,
L.
,
Camus
,
G.
and
Naslain
,
R.
, “
Oxidation Mechanisms and Kinetics of 1D-SiC/C/SiC Composite Materials: 1, An Experimental Approach
,”
J. Am. Ceram. Soc.
,
77
[
2
], pp. 459–466,
1994
.
8.
Vix -Guterl
,
C.
,
Lahaye
,
J.
and
Ehrburger
,
P.
, “
Reactivity of Silicon Carbide and Carbon with Oxygen in Thermostructural Composites
,”
Carbon
, Vol.
31
, No.
4
, pp. 629–635,
1993
.
9.
Lamouroux
,
F.
,
Camas
,
G.
and
Thebault
,
J.
, “
Kinetics and Mechanisms of Oxidation of 2D Woven C/SiC Composites: I, Experimental Approach
,”
J. Am. Ceram. Soc.
,
77
[
8
] 2049–57 (
1994
).
10.
Ogbuji
,
L. U. J. T.
and
Opila
,
E. J.
, “
A Comparison of the Oxidation Kinetics of SiC and Si3N4
,”
Journal of the Electrochemical Society
, Vol.
142
, No.
3
, pp. 925–930,
1995
.
11.
Halbig
,
M. C.
,
Brewer
,
D. N.
,
Eckel
,
A. J.
and
Cawley
,
J. D.
, “
Stressed Oxidation of C/SiC Composites
,”
Ceramic Engineering & Science Proceedings
, Vol.
18
, I.
3
, pp. 547–554,
1997
, Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials and Structures-A,
Cocoa Beach, Florida
, January 12–16, 1997.
12.
Shemet
,
V. Zh.
,
Pomytkin
,
A. P.
and
Neshpor
,
V. S.
, “
High Temperature Oxidation behavior of Carbon Materials in Air
,”
Carbon
 0008-6223, Vol.
31
, No.
1
, pp. 1–6,
1993
.
13.
McKee
,
D. W.
Oxidation Behavior of Matrix-Inhibited Carbon/Carbon Composites
,”
Carbon
, Vol.
26
, No.
5
, pp. 659–665,
1998
.
14.
Halbig
,
M. C.
,
Eckel
,
A. J.
and
Cawley
,
J. D.
, “
Oxygen Diffusion and Reaction Kinetics in Continuous Fiber Ceramic Matrix Composites
,”
Ceramic Engineering & Science Proceedings
, Vol.
19
, I.
4
, pp. 143–150,
1998
, Proceedings of the 22nd Annual Conference on Composites, Advanced Materials and Structures,
Cocoa Beach, Florida
, January 17–21, 1998.
15.
Halbig
,
M. C.
and
Cawley
,
J. D.
, “
Modeling the Oxidation Kinetics of Continuous Carbon Fibers in a Ceramic Matrix
,” to be published in the Ceramic Engineering & Science Proceedings of the 23rd Annual Conference on Composites, Advanced, Materials and Structures,
Cocoa Beach, Florida
, January 25–29, 1999.
16.
Eckel
,
A. J.
,
Cawley
,
J. D.
and
Parthasarathy
,
T. A.
, “
Oxidation Kinetics of a Continuous Carbon Phase in a Nonreactive Matrix
,”
J. Amer. Ceram. Soc.
,
78
, [
4
], pp. 972–980,
1995
.
17.
Glime
,
W. H.
and
Cawley
,
J. D.
, “
Oxidation of Carbon Fibers and Films in Ceramic Matrix Composites: A Weak Link Process
,”
Carbon
, Vol.
33
, No.
8
, pp. 1053–1060,
1995
.
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