Damage behavior of atomic oxygen on zirconium carbide coating modified carbon/carbon composite |
| |
| Affiliation: | 1. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Key Laboratory of Impact and Safety Engineering, Ministry of Education of China, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China;4. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China |
| |
| Abstract: | Zirconium carbide (ZrC) components were induced as coating modification on carbon/carbon (C/C). These ZrC–C/C specimens were investigated after atomic oxygen (AO) exposure for different assessment times, low earth orbit (LEO) ground-based environmental simulator was employed. The results indicate that ZrO2 is the major production generated by the AO chemical reaction with the ZrC coating. Upon further exposure to AO, the production of ZrO2 would drop off, then exfoliate easily, due to the mechanical impacting effect. Then the exposed graphite matrix and carbon fiber get corroded. Amorphous diamond-like carbon (DLC) is detected by X-ray photoelectron spectroscopy during AO exposure. Bending strength performance increased by 25% under AO exposure at first 10 h, then dropped by 52.1% from 10 h to 30 h of AO exposure. The AO damage mechanisms of ZrC–C/C composites are revealed. |
| |
| Keywords: | Atomic oxygen Coating Zirconium carbide Low earth orbit Exposure Diamond-like carbon |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
