Author: Steven Ray NuttPublisher:
ISBN:
Category :
Languages : en
Pages : 256
Book Description
Investigation of diffusion barrier materials on silicon carbide filaments and their incorporation into metal matrix composites
Author: Steven Ray NuttPublisher:
ISBN:
Category :
Languages : en
Pages : 256
Book Description
NASA's University Program
Author: United States. National Aeronautics and Space Administration. Office of University AffairsPublisher:
ISBN:
Category :
Languages : en
Pages : 364
Book Description
NASA Technical Memorandum
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 364
Book Description
NASA's University Program Active Projects
Author: Publisher:
ISBN:
Category : Federal aid to research
Languages : en
Pages : 358
Book Description
Modification of Silicon Carbide Fibers for Use in SiC/Ti Composites
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 24
Book Description
Fiber-reinforced Metal-matrix Composites--1967
Author: K. R. HanbyPublisher:
ISBN:
Category : Fibrous composites
Languages : en
Pages : 68
Book Description
The report is intended to update DMIC Report 241, which describes research on fiber-reinforced metal-matrix composites for the period 1964-1966. A two page summary outlines the current state-of-the-art of these composites, and is followed by a discussion of 1967 research on the composites, arranged according to matrix- and fiber-materials. The bulk of the report consists of summaries of 1967 research programs, arranged by programs. (Author).
Fiber Reinforced Ceramic Matrix Composites
Author: Paul Sevier McClellanPublisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 314
Book Description
NASA's University Program, Active Projects
Author: Publisher:
ISBN:
Category : Government/industry relations
Languages : en
Pages : 332
Book Description
An Investigation of the Mechanical Properties of Silicon Carbide and Sapphire Filaments
Author: R. L. CranePublisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 28
Book Description
The mechanical properties of silicon carbide (SiC) and sapphire filaments pertinent to the initial design of a metal matrix composite have been documented. The strength contributions of these filaments to a composite were simulated with tensile tests of self-abraded samples. The strength of virgin SiC filament was found to decrease linearly to about 1100 C (2012 F) and exponentially above this temperature. The abraded strength was found to be constant, as a function of temperature, to about 1100 C (2112 F). The loss of high temperature strength was correlated with the reaction between SiC and the fiber's W core. The strength of single crystal sapphire as a function of temperature was determined for both a-and c-axis filaments. Similar tests were conducted on ruby fiber. Ruby fiber was found to be significantly stronger than pure sapphire and insensitive to abrasion above 500 C (932 F). The strength of ruby fiber as a function of chronic ion content showed that the optimum dopant level has not yet been reached.
Surface Enhancement of Silicon Carbide Filament for Metal Matrix Composites
Author: R. J. SuplinskasPublisher:
ISBN:
Category :
Languages : en
Pages : 19
Book Description
The first year's efforts on this program were aimed at understanding the mechanisms of strengthening and degradation of SiC filament. Filaments were provided for analysis here in part by Avco IRAD and other related programs listed at the end of this report. The specific objectives were: (1) Devise a model for filament strengthening/degradation effects due to the presence of surface layer's or coatings on a brittle ceramic filament; (2) Determine properties of the carbon rich layer and propose mechanisms for filament strengthening; and (3) Utilizing the above model and mechanisms, analyze alternative surfaces that can potentially provide surface strengthening, resist strength degradation in molten Al, and bond with Al alloys during casting, hot molding or diffusion bonding operations.
