Title:
炭化ケイ素系セラミックス繊維及びその製造方法
Document Type and Number:
Japanese Patent JP3979311
Kind Code:
B2
Abstract:
To provide a silicon carbide ceramic fiber free from a carbon-rich layer present on the fiber surface and stable even in a high-temperature/oxidizing atmosphere and to provide a method for producing the same and a ceramic-base composite material reinforced with the silicon carbide ceramic fiber and having excellent oxidation resistance at high temperatures.
The crystalline silicon carbide fiber has 2.7-3.2 g/cm3density and is composed of 50-70 wt.% of Si, 28-45 wt.% of C, 0.06-3.8 wt.% of Al and 0.06-0.5 wt.% of B and a sintered structure of SiC. The atomic ratio of the C in the fiber surface is 50-75% and the atomic ratio of the O is 0-25%. The atomic ratios of the C and O have a tendency to reduce to the interior of the fiber. Both the depth from the fiber surface where the atomic ratio of the C is ≤55% and the depth from the fiber surface where the atomic ratio of the O is ≤5% are 0-5 nm (expressed in terms of SiO2).
COPYRIGHT: (C)2005,JPO&NCIPI
Inventors:
Michiyuki Suzuki
Yoshizumi Tanaka
Norifumi Miyamoto
Mitsuhiko Sato
Application Number:
JP2003067714A
Publication Date:
September 19, 2007
Filing Date:
March 13, 2003
Assignee:
Ube Industries,Ltd.
International Classes:
C04B35/80; D01F9/10; D03D15/12; D03D25/00; D04H1/4234; D06M11/00; D06M11/30; D06M11/80; D06M101/00
Domestic Patent References:
| JP11036142A | | | | |
| JP11107051A | | | | |
| JP7018520A | | | | |
| JP2293379A | | | | |
| JP6092745A | | | | |
| JP8337929A | | | | |
| JP2002348741A | | | | |
