Title:
PROTECTIVE PIPE
Document Type and Number:
Japanese Patent JP2015210016
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a protective pipe comprising a silicon nitride-based sintered body having high mechanical characteristic.SOLUTION: A protective pipe 1 comprises a nitride-based sintered body whose one end is opened and the other end is sealed, and which has a cylindrical trunk part 1a and a bottom part 1b containing an R part connected to the trunk part 1a. When the peak intensity of β-silicon nitride at 2θ=23.4° measured by an X-ray diffraction device using a Kα ray of Cu in a cross section along the thickness direction of the trunk part 1a is defined as A, and the peak intensity of the β-silicon nitride at 2θ=63.9°is defined as B, a value of B/A is 2 or more.
Inventors:
OSAKI MAKOTO
Application Number:
JP2014091534A
Publication Date:
November 24, 2015
Filing Date:
April 25, 2014
Export Citation:
Assignee:
KYOCERA CORP
International Classes:
F27D11/02; C04B35/584
Domestic Patent References:
| JPS5623686A | 1981-03-06 | |||
| JP2002121076A | 2002-04-23 | |||
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| JPS5840484A | 1983-03-09 | |||
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Foreign References:
| WO2014051088A1 | 2014-04-03 |