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Evaluation of strength properties of developed SiC/C compositionally gradient graphite materials

Technical Report:

Abstract

To evaluate the influence of surface SiC coating and intermediate SiC/C layers on the mechanical strength of graphite matrix of the developed compositionally gradient graphite materials, which are composed of a surface SiC coating layer, an intermediate SiC/C layer and a graphite matrix, bending and compressive tests were carried out for SiC/C compositionally gradient graphite materials, SiC coated graphite materials, graphite materials with the intermediate SiC/C and virgin graphite materials at room temperature. The results of the tests were discussed in comparison with the specific surface areas which is a measure for the surface condition of samples. For the graphite with the intermediate SiC/C layer, the strength was independent of the Si content in the intermediate SiC/C layer and almost the same as that for the graphite substrate, although the specific surface area increased with an increase in the Si content in the intermediate SiC/C layer. The strength of the surface SiC coated specimens, i.e., SiC/C compositionally gradient graphite materials and SiC coated graphite materials, was about twice as that of the respective substrate, i.e., the graphite with the intermediate SiC/C layer and the virgin graphite. (author).
Authors:
Nakano, Junichi; Fujii, Kimio; Shindo, Masami [1] 
  1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
JAERI-Research-94-016
Reference Number:
SCA: 360603; PA: JPN-94:012179; EDB-95:023398; SN: 95001319987
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
36 MATERIALS SCIENCE; SILICON CARBIDES; COMPRESSIBILITY; FLEXURAL STRENGTH; REACTOR MATERIALS; HTGR TYPE REACTORS; CHEMICAL VAPOR DEPOSITION; GRAPHITE; COMPOSITE MATERIALS; BENDING; SPECIFIC SURFACE AREA; CONCENTRATION RATIO; TENSILE PROPERTIES; 360603; MECHANICAL PROPERTIES
OSTI ID:
10109320
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE95737271; TRN: JP9412179
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
29 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Nakano, Junichi, Fujii, Kimio, and Shindo, Masami. Evaluation of strength properties of developed SiC/C compositionally gradient graphite materials. Japan: N. p., 1994. Web.
Nakano, Junichi, Fujii, Kimio, & Shindo, Masami. Evaluation of strength properties of developed SiC/C compositionally gradient graphite materials. Japan.
Nakano, Junichi, Fujii, Kimio, and Shindo, Masami. 1994. "Evaluation of strength properties of developed SiC/C compositionally gradient graphite materials." Japan.
@misc{etde_10109320,
title = {Evaluation of strength properties of developed SiC/C compositionally gradient graphite materials}
author = {Nakano, Junichi, Fujii, Kimio, and Shindo, Masami}
abstractNote = {To evaluate the influence of surface SiC coating and intermediate SiC/C layers on the mechanical strength of graphite matrix of the developed compositionally gradient graphite materials, which are composed of a surface SiC coating layer, an intermediate SiC/C layer and a graphite matrix, bending and compressive tests were carried out for SiC/C compositionally gradient graphite materials, SiC coated graphite materials, graphite materials with the intermediate SiC/C and virgin graphite materials at room temperature. The results of the tests were discussed in comparison with the specific surface areas which is a measure for the surface condition of samples. For the graphite with the intermediate SiC/C layer, the strength was independent of the Si content in the intermediate SiC/C layer and almost the same as that for the graphite substrate, although the specific surface area increased with an increase in the Si content in the intermediate SiC/C layer. The strength of the surface SiC coated specimens, i.e., SiC/C compositionally gradient graphite materials and SiC coated graphite materials, was about twice as that of the respective substrate, i.e., the graphite with the intermediate SiC/C layer and the virgin graphite. (author).}
place = {Japan}
year = {1994}
month = {Oct}
}