Title

High-Pressure Torsion-Induced Grain Refinement/Growth in Coarse-Grained/Nanocrystalline Cu Powders

Abstract

SiC fibers were synthesized on the surface of reaction sintered SiC substrate by Si vapor deposition without catalyst at 1700° C for 4. h in the nitrogen atmosphere. SiC fibers were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results indicate that the fibers have β-SiC structure and their diameters are several-hundred nanometers. The length of the SiC fibers is ~1.5-3.0. mm and their growth direction is [111]. Investigation of growth mechanism indicates that the SiC fibers grow via the vapor-solid (VS) growth process.

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

2728842

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Elsevier Ltd, All rights reserved.

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