Published April 1997 | Version v1
Report Restricted

Creep behavior for advanced polycrystalline SiC fibers

Creators

  • 1. Pacific Northwest National Lab., Richland, WA (United States)
  • 2. Kyoto Univ. (Japan)

Description

A bend stress relaxation (BSR) test has been utilized to examine irradiation enhanced creep in polycrystalline SiC fibers which are under development for use as fiber reinforcement in SiC/SiC composite. Qualitative, S-shaped 1hr BSR curves were compared for three selected advanced SiC fiber types and standard Nicalon CG fiber. The temperature corresponding to the middle of the S-curve (where the BSR parameter m = 0.5) is a measure of a fiber's thermal stability as well as it creep resistance. In order of decreasing thermal creep resistance, the measured transition temperatures were Nicalon S (1450 degrees C), Sylramic (1420 degrees C), Hi-Nicalon (1230 degrees C) and Nicalon CG (1110 degrees C)

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Additional details

Publishing Information

Imprint Title
Fusion materials semiannual progress report for the period ending December 31, 1996
Imprint Pagination
296 p.
Journal Page Range
p. 89-93.
Report number
DOE/ER--0313/21

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
29021881
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Progress Report
Descriptors DEI
CREEP; FIBERS; PHYSICAL RADIATION EFFECTS; PROGRESS REPORT; SILICON CARBIDES; TRANSITION TEMPERATURE
Descriptors DEC
CARBIDES; CARBON COMPOUNDS; DOCUMENT TYPES; MECHANICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATION EFFECTS; SILICON COMPOUNDS; THERMODYNAMIC PROPERTIES

Optional Information

Contract/Grant/Project number
Contract AC06-76RL01830