| タイトル | Oxidation Protection of Porous Reaction-Bonded Silicon Nitride |
| 本文（外部サイト） | http://hdl.handle.net/2060/19980153162 |
| 著者（英） | Fox, D. S. |
| 発行日 | 1994-11-01 |
| 言語 | eng |
| 内容記述 | Oxidation kinetics of both as-fabricated and coated reaction-bonded silicon nitride (RBSN) were studied at 900 and 1000 C with thermogravimetry. Uncoated RBSN exhibited internal oxidation and parabolic kinetics. An amorphous Si-C-O coating provided the greatest degree of protection to oxygen, with a small linear weight loss observed. Linear weight gains were measured on samples with an amorphous Si-N-C coating. Chemically vapor deposited (CVD) Si3N4 coated RBSN exhibited parabolic kinetics, and the coating cracked severely. A continuous-SiC-fiber-reinforced RBSN composite was also coated with the Si-C-O material, but no substantial oxidation protection was observed. |
| NASA分類 | Nonmetallic Materials |
| レポートNO | E-9350 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/557416 |
|
