TY - JOUR
T1 - High-pressure and high-temperature generation using diamond/SiC composite anvils prepared with hot isostatic pressing
AU - Ohtaka, Osamu
AU - Ohnishi, Naoyuki
AU - Kubo, Katsuyuki
AU - Arima, Hiroshi
AU - Fukui, Hiroshi
AU - Yamanaka, Takamitsu
AU - Miyamoto, Kei
AU - Inamura, Suguru
AU - Kikegawa, Takumi
AU - Shimono, Masaru
N1 - Funding Information:
We thank A. Hosomi of Tomei Diamond Inc. for the offer of diamond powder and S. Kume for invaluable comments. High-pressure in situ XRD experiments were performed with the approval of the Photon Factory Advisory Committee (Proposal Nos. 2002G063 and 2004G033). This work was supported in part by a Grant-in-Aid for Scientific Research of the Japanese Society for the Promotion of Science (JSPS).
PY - 2005/3
Y1 - 2005/3
N2 - Using a hot isostatic pressing (HIP) technique, we synthesized diamond/SiC composites from diamond and Si powders. At an HIP condition of 1450°C and 100 MPa, a pressure much lower than that of the diamond stability field, diamond powders react with molten Si to form well-sintered diamond/SiC composites. Cubes of the composites with 15 mm edge length were thereby fabricated, and an application to the second stage anvils in a Kawai-type high-pressure apparatus was attempted. A hybrid anvils system using four cubes of the composites and four of the conventional WC was introduced and heating experiments up to 1600°C became possible. Because the diamond/SiC composites are transparent to X-rays, the present system is applicable not only to diffraction studies but also to radiographic studies that need a larger window for an X-ray image.
AB - Using a hot isostatic pressing (HIP) technique, we synthesized diamond/SiC composites from diamond and Si powders. At an HIP condition of 1450°C and 100 MPa, a pressure much lower than that of the diamond stability field, diamond powders react with molten Si to form well-sintered diamond/SiC composites. Cubes of the composites with 15 mm edge length were thereby fabricated, and an application to the second stage anvils in a Kawai-type high-pressure apparatus was attempted. A hybrid anvils system using four cubes of the composites and four of the conventional WC was introduced and heating experiments up to 1600°C became possible. Because the diamond/SiC composites are transparent to X-rays, the present system is applicable not only to diffraction studies but also to radiographic studies that need a larger window for an X-ray image.
KW - Diamond composite
KW - High-pressure anvils
KW - Hot isostatic pressing (HIP)
KW - Multi-anvil high-pressure apparatus
KW - SiC
KW - Synchrotron radiation
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U2 - 10.1080/08957950412331325580
DO - 10.1080/08957950412331325580
M3 - Article
AN - SCOPUS:20844437270
VL - 25
SP - 11
EP - 15
JO - High Pressure Research
JF - High Pressure Research
SN - 0895-7959
IS - 1
ER -