The objective of this proposal is to demonstrate innovativemethods for improving the interlaminar shear strength of 2-D fiberreinforced ceramic matrix composites. This would yield cost-effective, loadbearing, structural components for turbine engine applications. Continuousand chopped ceramic fibers, respectively, will be used to provide fiberreinforcement in the through-thickness direction to inhibit shear betweenplies. A 2-D Nicalon TM fiber reinforced alumina matrix compositefabricated via the directed metal oxidation process will be used in thisstudy. The effectiveness of the technical approaches used will be evaluatedby interlaminar shear tests using the short beam method and the doublenotch shear test. Composite tensile and flexural strength, toughness,coefficient of thermal expansion, and thermal conductivity will also bemeasured. Lanxide Corporation is well staffed and equipped to carry out theproposed research effort. Lanxide's extensive experience in compositedevelopment and characterization provide excellent prospects for success inthe proposed program.
