Mechanical Properties of Cubic Silicon Carbide after Neutron Irradiation at Elevated Temperatures / Y. Katoh, LL. Snead

Conference Author: 22nd Symposium on the Effects of Radiation on Materials (22nd : 2004 : Boston, Massachusetts)
Physical Description: 1 online resource (13 pages) : illustrations, figures, tables
Additional Creators: Snead, LL., Katoh, Y., American Society for Testing and Materials, and ASTM International

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Summary

Mechanical properties of high-purity polycrystalline cubic SiC was characterized after neutron irradiation. Bar samples were irradiated in target position capsules in the High Flux Isotope Reactor (HFIR, Oak Ridge, Tennessee) to nominal fluence levels up to 7.7 dpa at temperatures of 300, 500, and 800¿̐ưC. A decrease in Young's modulus was observed after irradiation, and its irradiation temperature dependence qualitatively agreed with the calculated modulus change due to point defect swelling. Irradiation caused a significant modification of statistical flexural strength but caused only minor increase in nano-indentation hardness. The irradiation effect on fracture initiation through an enhanced cleavage resistance likely is primarily responsible for the major change in flexural strength properties.

Dates of Publication and/or Sequential Designation

Volume 2006, Issue 1475 (January 2006)

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ISBN

9780803155183 (e-ISBN)
9780803134010
0803134010

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text file PDF

Bibliography Note

Includes bibliographical references 25.

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Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2006. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.

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Mode of access: World Wide Web.

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ASTM International PDF Purchase price USD25.

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