Fabrication and tensile properties of continuous-fiber reinforced Ni sub 3 Al--Al sub 2 O sub 3 composites

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Journal of Materials Research; (United States)

DOI:https://doi.org/10.1557/JMR.1991.1673· OSTI ID:5419353

Schneibel, J H; George, E P; McKamey, C G; Ohriner, E K; Santella, M L; Carmichael, C A ^[1]

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1. Metals and Ceramics Division, Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, Tennessee (USA)

Continuous-fiber reinforced metal-matrix composites consisting of Ni{sub 3}Al alloys and Saphikon Al{sub 2}O{sub 3} single crystal fibers were fabricated by hot-pressing of fiber-foil lay-ups. Two matrix compositions were employed, namely, IC50 (Ni--22.5Al--0.5Zr--0.1B, at. %) and IC396M (Ni--15.9Al--8.0Cr--0.5Zr--1.7Mo--0.02B, at. %). Etching of the foils in aqueous FeCl{sub 3} solution prior to lay-up and hot-pressing tended to improve fiber-matrix bonding and the density-normalized room temperature yield stress. Whereas strength improvements for the IC50 matrix were only moderate, significant improvements were found for a IC396M composite reinforced with 10 vol. % of Saphikon fibers.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5419353
• Journal Information: Journal of Materials Research; (United States), Journal Name: Journal of Materials Research; (United States) Vol. 6:8; ISSN JMREE; ISSN 0884-2914
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMINES
AMMONIUM COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
FABRICATION
FIBERS
MATERIALS
MECHANICAL PROPERTIES
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
QUATERNARY COMPOUNDS
REINFORCED MATERIALS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS