Studies of mechanical properties and irradiation damage nucleation of HTGR graphites. Progress report, February 1, 1978--March 31, 1979. [Neutrons]

Technical Report · Sat Mar 31 23:00:00 EST 1979

DOI:https://doi.org/10.2172/5948183· OSTI ID:5948183

Thrower, P. A.

Irradiation damage effects to highly oriented pyrolytic graphite by 1.5, 5.5 and 15 MeV neutrons are briefly described. Studies of the effects of oxidation on the structure and strength of Stackpole 2020, Great Lakes H440 and POCO AXF-5Q graphites have been continued using H/sub 2/O vapor as the oxidant. The effect of burn-off on compressive strength is similar to that of CO/sub 2/, but structural effects are quite different. The kinetics of the C--CO/sub 2/ reaction are being studied using low CO/sub 2/ partial pressures in a total pressure of one atmosphere. The necessary modifications to existing apparatus have been made and experimental work is commencing.

• Research Organization: Pennsylvania State Univ., University Park (USA)
• OSTI ID: 5948183
• Report Number(s): COO-2712-6
• Country of Publication: United States
• Language: English

Related Subjects

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CHEMICAL REACTIONS
COMPRESSION STRENGTH
CORROSION
CORROSIVE EFFECTS
ELEMENTS
GAS COOLED REACTORS
GRAPHITE
GRAPHITE MODERATED REACTORS
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HYDROGEN COMPOUNDS
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NONMETALS
OXIDATION
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTORS
TENSILE PROPERTIES
WATER