| タイトル | Development of Improved Rhenium Coatings for Fluorine Engine Thrust Chambers |
| 本文（外部サイト） | http://hdl.handle.net/2060/19810021642 |
| 著者（英） | Barton, K. J.; Yurkewycz, R.; Daniels, I.; Harada, Y. |
| 著者所属（英） | IIT Research Inst.|Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1981-06-30 |
| 言語 | eng |
| 内容記述 | Coating trials were undertaken to evaluate the application of rhenium to carbon-carbon composite sheet by plasma spraying. Optimum spray parameters and coating thickness were identified for production of coatings free from continuous defects and with adequate adherence to the substrate. A tungsten underlayer was not beneficial and possibly detracted from coating integrity. Stress calculations indicated that the proposed operating cycle of the rocket engine would not cause spalling of the rhenium coating. Calculations indicated that permeation of gases through the coating would not be significant during the expected life of the thrust chamber. The feasibility of applying rhenium coatings by laser melting was also studied. Poor wetting of the composite surface by the liquid rhenium precluded production of uniform coatings. Borate/carborate fluxes did not improve wetting characteristics. |
| NASA分類 | SPACECRAFT PROPULSION AND POWER |
| レポートNO | 81N30181
JPL-9950573
IITRI-M06079-6 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/168252 |
