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Home  >  Journal list  >  Journal of the Society of Materials Science, Japan  >  Vol.61  No.5 (2012)  >  pp.407-411

Journal of the Society of Materials Science, Japan
<<Previous article Vol.61  No.5 (2012)   pp.407 - 411 Next article>>

HIP Production of Diamond-SiC Composite and Its Application to High-Pressure In-Situ X-Ray Experiments

Osamu OHTAKA1), Ken-ichi FUNAKOSHI2), Masaru SHIMONO3)
1) Dept. Earth & Space Sci., Fac. Sci., Osaka Univ. 2) JASRI, SPring-8 3) Dept. Material Chemistry, Fac. Sci. Tech., Ryukoku Univ.

Diamond-SiC composites were produced from diamond and Si powders by reaction synthesis using a hot isostatic pressing (HIP) technique. At an HIP condition of 1450°C and 100MPa, which pressure is much lower than that of the diamond stability field, diamond powders react with molten Si to form well-sintered diamond-SiC composites. Using the cubes of the composites thereby fabricated, an application to the second stage anvils in the Kawai-type multi-anvil high-pressure apparatus was attempted. Because the diamond-SiC composites are transparent to X rays, the present anvils can be employed not only for conventional energy dispersive X-ray diffraction studies but also for angle dispersive diffraction and radiographic studies that need a larger window for X-ray images. In this paper, our recent advances in the HIP production of diamond-SiC composites and their applications to high-pressure anvils for the Kawai-type multi-anvil high-pressure apparatus were reported.


Keyword:
Diamond composites, SiC, HIP, Sintering, High-pressure anvils, Synchrotron radiation, Multi-anvil press, X-ray diffraction, X-ray radiography

Received: September 14, 2011
Published online: May 22, 2012
Copyright © 2012 by The Society of Materials Science, Japan

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