Advanced ceramics for environmental protection
- DuPont Lanxide Composites Inc., Newark, DE (United States)
Advanced ceramic materials offer significant thermodynamic efficiency advantages over metals and alloys because of their higher use temperatures. Using ceramic components results in higher temperature industrial processes which convert fuels to energy more efficiently, reducing environmental emissions. Ceramics have always offered high temperature strength and superior corrosion and erosion resistance. However, brittleness, poor thermal stock resistance and catastrophic failure have slowed industrial adoptions of ceramics in environmental applications. This paper will focus on environmental applications of three new advanced ceramic materials that are overcoming these barriers to industrial utilization through improved toughness, reliability, and thermal shock performance. PRD-66, a layered oxide ceramic with outstanding thermal shock resistance and high use temperature with utility in catalyst support, insulation, and hot gas filtration applications, is discussed. Tough silicon carbide fiber reinforced silicon carbide (SiC/SiC) and carbon fiber reinforced silicon carbide (C/SiC) ceramic composites made by chemical vapor infiltration, and silicon carbide particulate reinforced alumina (SiC{sub p}/Al{sub 2}O{sub 3}) composites made through Lanxide Corporation`s DIMOX{trademark} directed metal oxidation process are described. Applications of these materials to pollution reduction and energy efficiency in medical and municipal waste incineration, heat management, aluminum remelting, pyrolysis, coal combustion and gasification, catalytic pollution control, and hot gas filtration, will be discussed.
- OSTI ID:
- 106159
- Report Number(s):
- CONF-940411--; ISBN 1-55899-239-1
- Country of Publication:
- United States
- Language:
- English
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ALUMINIUM OXIDES
CARBON FIBERS
CATALYTIC CONVERTERS
CERAMICS
COMBUSTORS
COMPILED DATA
COMPOSITE MATERIALS
ENERGY SYSTEMS
GAS GENERATORS
GAS TURBINE ENGINES
HEAT EXCHANGERS
HOT GAS CLEANUP
INCINERATORS
MATERIALS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
POLLUTION CONTROL EQUIPMENT
RADIANT HEATERS
SILICON CARBIDES
STEAM REFORMER PROCESSES
THERMODYNAMIC PROPERTIES