Composite member, unitary rotor member including same, and method of making
AssigneeAllied-Signal Inc.
InventorsE. Scott Wright, James G. Kenehan
Life of this patent
Estimating the term…
Abstract
A composite member includes circumferentially extending ceramic fibers in a metallic matrix. A rotor member integrally includes such a ceramic fiber/metal matrix composite member to reinforce a homogeneous remainder portion of the rotor member with respect to centrifugally induced stresses. Method of making are included in the disclosure.
Claims21
Apparatus comprising a disk-like unitary rotor member having an integral composite ceramic fiber/metal matrix portion reinforcing a homogeneous metallic remainder portion thereof, said rotor member defining a metallic infrastructure which is continuous axially, radially, and circumferentially therewithin and which includes both said metal matrix of said composite portion and said homogeneous metallic portion, said rotor member further being substantially free of internal voids. said composite ceramic fiber/metal matrix portion including a plurality of circumferentially extending ceramic fibers, each one of said ceramic fibers comprising a central monofilament core, and a layer of beta silicon carbide ceramic surrounding said core.
Apparatus comprising a disk-like unitary rotor member integrally including an annular composite ceramic fiber/metal matrix portion, said annular composite portion defining a through bore having a radially inwardly disposed interface surface, a pair of axially spaced apart annular end surfaces each extending radially outwardly of said through bore, and an axially extending radially outwardly disposed outer annular surface interconnecting said pair of end surfaces, a substantially homogeneous metallic portion enclosing said annular composite portion;
- said metallic portion metallurgically interbonding with said annular composite portion in stress-transmitting relation at each of said interface surface, said pair of end surfaces, and said outer surface.
A unitary disk-like rotor member comprising a substantially homogeneous metallic portion, and a composite ceramic fiber/metal matrix portion enveloped completely within and reinforcing said metallic portion with respect to centrifugally-induced stresses said matrix portion including a circumferentially extending ceramic fiber having a monofilament core, said metallic portion and said metallic matrix of said composite ceramic fiber/metal matrix portion metallurgically interbonding and cooperatively defining a metallic infrastructure for said rotor member, which metallic infrastructure is continuous between said portions.
Dependencies are inferred from the claim text.