Published 1992 | Version v1
Book Metadata-only

The combustion synthesis of B4C-Al2O3-Al composite materials

Creators

  • 1. Dept. of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO (United States)
  • 2. Coors Ceramics Co., Golden, CO (United States)

Description

The combustion synthesis of the B4C-2Al2O3-xAl ceramic-metal composite system has been studied using the propagating mode of ignition for the reaction 2B2O3 + C + (4 + x) = B4C + 2Al2O3 + xAl in which x was varied between 0 and 3. The volatile constituent(s), eg. B2O3, resulted in the formation of an expanded or foamed ceramic with a uniform porous structure. The porosity represents ≥65%, and an expansion of 300-500% occurred mainly in the vertical direction. The effect of green density and reaction stoichiometry on product density, pore morphology, propagation rate and overall activation energy is discussed, in this paper

Additional details

Publishing Information

Publisher
Materials Research Society.
Imprint Place
New York, NY (United States)
ISBN
1-55899-143-3
Imprint Title
Proceedings of the synthesis and processing of ceramics emdash scientific issues
Imprint Pagination
585 p.
Journal Page Range
p. 529-538.

Conference

Title
Annual fall meeting of the Materials Research Society.
Dates
2-6 Dec 1991.
Place
Boston, MA (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
24009999
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACTIVATION ENERGY; ALUMINIUM OXIDES; BORON CARBIDES; COMBUSTION; DENSITY; FABRICATION; GREEN FUNCTION; POROSITY; STOICHIOMETRY; THERMODYNAMIC PROPERTIES
Descriptors DEC
ALUMINIUM COMPOUNDS; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ENERGY; FUNCTIONS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES

Optional Information

Secondary number(s)
CONF-911202--.