High-performance brittle matrices and brittle-matrix composites. Book 2. Final report, 15 March 1986-30 September 1989
The primary intent of this research was the development of composites having an acceptable combination of toughness and oxidation resistance. The research was closely coordinated with the DARPA/ONR URI program as UCSB concerned with high temperature, high performance composites. The study comprised three tasks. The first task was to study phase equilibria, solidification pathways and toughness properties of intermetallics, such as oxidation resistance Ti-Al-Ta and Nb-Al-Si alloys, and ceramics. These studies were then combined with interface interaction studies between the matrix microstructure and ductilizing/toughening particulates and fibers. The second task was a basic study of interface structure and chemistry as it relates to the mechanical properties of the interface. The third task involved studies on aluminum and copper matrix composites. These studies were concerned with developing an understanding of creep resistance.
- Research Organization:
- California Univ., Santa Barbara, CA (USA)
- OSTI ID:
- 6555123
- Report Number(s):
- AD-A-223274/2/XAB; CNN: N00014-86-K-0178
- Country of Publication:
- United States
- Language:
- English
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360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
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360600 -- Other Materials
ALLOYS
ALUMINIUM ALLOYS
BRITTLENESS
CERAMICS
CHEMICAL REACTIONS
CHEMISTRY
COMPOSITE MATERIALS
COPPER ALLOYS
CORROSION RESISTANCE
CREEP
CRYSTAL STRUCTURE
DIAGRAMS
DOCUMENT TYPES
EQUILIBRIUM
FRACTURE PROPERTIES
HIGH TEMPERATURE
INTERACTIONS
INTERFACES
INTERMETALLIC COMPOUNDS
MATERIALS
MATRIX MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NIOBIUM ALLOYS
OXIDATION
PARTICLES
PARTICULATES
PHASE DIAGRAMS
PHASE STUDIES
PHASE TRANSFORMATIONS
PROGRESS REPORT
RESEARCH PROGRAMS
RESIDUAL STRESSES
SILICON ALLOYS
SOLIDIFICATION
STRESSES
TANTALUM ALLOYS
TITANIUM ALLOYS