Detection of Gases Generated from Si3N4-Based Ceramics during the Fracture Test under Ultra-High Vacuum

Detection of Gases Generated from Si3N4-Based Ceramics during the Fracture Test under Ultra-High Vacuum

Three types of Si3N4-based sintered ceramics were fractured in an ultra-high vacuum and the gases generated during the fracture were analyzed by quadrupole mass spectroscopy. Various gases such as H2, CH4, N2, CO, Ar and CO2 were detected after the fracture event in all the materials. The emission p...

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Veröffentlicht in:Journal of the Ceramic Society of Japan 1997-01, Vol.105 (1226), p.915
Hauptverfasser: KITAOKA, Satoshi, MATSUBARA, Hideaki, KAWAMOTO, Hiroshi, OKADA, Hiroshi, MATSUMOTO, Mineaki, KANNO, Motohiro
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container_issue 1226
container_start_page 915
container_title Journal of the Ceramic Society of Japan
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creator KITAOKA, Satoshi
MATSUBARA, Hideaki
KAWAMOTO, Hiroshi
OKADA, Hiroshi
MATSUMOTO, Mineaki
KANNO, Motohiro
description Three types of Si3N4-based sintered ceramics were fractured in an ultra-high vacuum and the gases generated during the fracture were analyzed by quadrupole mass spectroscopy. Various gases such as H2, CH4, N2, CO, Ar and CO2 were detected after the fracture event in all the materials. The emission peak intensities of the gases and the total pressure changes in the chamber depended on the types of materials, but the gas compositions were similar to each other. These gases are thought to be released mainly from residual pores formed during sintering. Some of the gases may be produced at the moment of fracture. This method is expected to be applied to fundamental studies on the processing and fracture of advanced ceramics.
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title Detection of Gases Generated from Si3N4-Based Ceramics during the Fracture Test under Ultra-High Vacuum
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