Graphite fibre/lithium aluminosilicate composites of matrix composition Li2O Al2O3·nSiO2 wheren=3, 4, and 8, have been developed with a high volume fraction of undirectionally aligned graphite fibres. Graphite fibre/ceramic matrix tapes were produced on a drumwinding apparatus and hot-pressed to final dimensions. This composite system exhibits a combination of useful properties, including high strength, low density, excellent thermal shock resistance and impact strength. Shear strength, cyclic modulus of rupture and modulus of elasticity and optical and electron microscopic evaluation of microstructure are discussed. Modulus of rupture as a function of vol % fibres was studied. The high modulus of rupture and impact strength are discussed in terms of the relative properties of fibre and matrix.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
M. W. Lindley andD. J. Godfrey,Nature 229 (1971) 192.
D. A. Everest andA. Kelly, 5th International Materials Symposium (University of California, Berkeley, 1971).
I. C. Visconti andG. A. Cooper,Nature 221 (1969) 754.
A. Kelly, “Strong Solids” (Oxford University Press, 1966).
R. A. Plenty, Tech. Kept. AFML-TR-66-356, Part III (1969).
J. J. Krochmal, Tech. Rept. AFML-TR-67-207 (1967).
G. A. Graves, Jun, C. T. Lynch, andK. S. Mazdiyasni,Bull. Amer. Ceram. Soc. 49 (1970) 797.
L. H. Van Vlack, “Elements of Materials Science” (Addison-Wesley, 1964).
R. A. Hatch,Amer. Minerol. 28 (1943) 471.
R. Roy andE. F. Osborn,J. Amer. Ceram. Soc. 71 (1949) 2086.
S. R. Levitt (submitted toJ. Amer. Ceram. Soc.).
S. R. Levitt andD. F. Gibbons (in progress).
J. Cook andJ. E. Gordon,Proc. Roy. Soc. A282 (1964) 508.
F. A. Hummel, US Patent Re-24795 (1960).
R. Bacon, AFML-TR-66-334, Part II, December 1967.
J. B. Nelson andD. P. Reilly,Phys. Soc. Proc. 57 (1945) 477.
B. Butler, S. Dubere, andJ. Tidmore, Tenth Biennial Conference on Carbon, Bethlehem, Pennsylvania (1971).
About this article
Cite this article
Levitt, S.R. High-strength graphite fibre/lithium aluminosilicate composites. J Mater Sci 8, 793–806 (1973). https://doi.org/10.1007/BF00553730
- Shear Strength
- Impact Strength
- Thermal Shock