The combustion synthesis of boride composites. [B/sub 4/C/TiB/sub 2/ infiltrated with Al]
We have investigated the combustion synthesis process as a means of producing hard, tough, lightweight B/sub 4/c/TiB/sub 2/ composites. We based our experimental program on thermodynamic calculations. Adiabatic temperatures and product compositions were determined on the basis of the stoichiometry and initial temperature of the reactants. For lightweight products the composition must be relatively rich in the B/sub 4/C component. We found that B/sub 4/C-rich composites could only be obtained by increasing the initial temperature of the reactants. The product is a hard, porous material whose toughness should be enhanced by filling the pores with aluminum using a liquid-metal infiltration process. 9 figs., 3 tabs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA); California Univ., Davis (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5417945
- Report Number(s):
- UCRL-96861; CONF-8710216-3; ON: DE88005474
- Resource Relation:
- Conference: Symposium on high-temperature materials chemistry, Honolulu, HI, USA, 18 Oct 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Combustion synthesis of boride and other composites
Combustion synthesis of boride and other composites
Related Subjects
ALUMINIUM ALLOYS
SYNTHESIS
BORON CARBIDES
COMPOSITE MATERIALS
TITANIUM BORIDES
COMBUSTION
ALLOYS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
MATERIALS
OXIDATION
THERMOCHEMICAL PROCESSES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360601* - Other Materials- Preparation & Manufacture