Document Details
PURL
Title:
RADIATION EFFECTS ON PYROLYTIC GRAPHITE
Author(s):
Subject Terms:
GRAPHITEGRAPHITE (PYROLYTIC) - RADIATION EFFECTSREACTOR TECHNOLOGY
Document Location:
DOE Public Reading Room - Hanford Battelle P.O. Box 999 MS H2-53 Richland WA 99352 (509)372-7443
Document Type:
REPORT
Publication Date:
1964 Mar 18
Declassification Status:
Declassified
Document Pages:
6
Accession Number:
RL-1-382368
Document Number(s):
HW-SA-3417
Originating Research Org.:
GE - HAPO
OpenNet Entry Date:
2004 Feb 24
OpenNet Modified Date:
2015 Aug 28
Description/Abstract:
COMMERCIAL GRADE PYROLYTIC GRAPHITE (DENSITY 2.20 G/CM3) WAS IRRADIATED AT 650 C TO EXPOSURES OF 3.2 AND 6.0 N/CM-2 (E GREATER THAN 0.18 MEV) SUCCESSIVELY. CHANGES IN LENGTH AND IN COEFFICIENT OF THERMAL EXPANSION WITH IRRADIATION ARE GIVEN. IT APPEARS THAT IRRADIATION INTERCALATES C COMPLEXES BETWEEN THE LAYER PLANES. RESULTS IMPLY THAT HIGH-TEMP RADIATION-INDUCED CONTRACTION IN POLYCRYSTALLINE GRAPHITES OCCUR EITHER BY DECREASING THE POROSITY OR BY DENSIFYING C WHICH WAS INITIALLY LESS THAN THEORETICAL DENSITY, NOT BY A VOL CONTRACTION IN THE GRAPHITE CRYSTALLITES.