Published December 1989
| Version v1
Journal article
Change in oxygen content of Y2O3-Nd2O3-doped silicon nitride during firing
Creators
- 1. Scientific Research Lab., Central Engineering Labs., Nissan Motor Co., Ltd., Natsushima-cho-1, Yokosuka, Kanagawa (Japan)
Description
The oxygen content of silicon nitride with 1 mol% Y2O3-Nd2O3 additive was measured after firing to determine the compositional change during gas-pressure sintering. Oxygen content decreases from 2.5 to 0.94 wt% during firing for 4 h at 1900 degrees C and 10-MPa pressure in N2. This decrease in oxygen results from the release of SiO gas generated by a thermal-decomposition reaction between Si3N4 and SiO2. The resultant sintered silicon nitride material contains less than 1 wt% oxygen
Additional details
Publishing Information
- Journal Title
- Journal of the American Ceramic Society
- Journal Volume
- 72
- Journal Issue
- 12
- Series
- J. Am. Ceram. Soc.
- Journal Page Range
- 2359-2360
- ISSN
- 0002-7820
- CODEN
- JACTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21070510
- Subject category
- S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ADDITIVES; CHEMICAL COMPOSITION; CHEMICAL REACTION KINETICS; DIFFUSION; NEODYMIUM OXIDES; NITROGEN; OXYGEN; SILICON NITRIDES; SILICON OXIDES; THERMAL DEGRADATION; VERY HIGH TEMPERATURE; YTTRIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; ELEMENTS; KINETICS; NEODYMIUM COMPOUNDS; NITRIDES; NITROGEN COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PNICTIDES; RARE EARTH COMPOUNDS; REACTION KINETICS; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS