Effects of Hydroxyl Treatment on Atomic Resistance Property of Hexagonal Boron Nitride Film
Surface hydroxyl treatment of hexagonal boron nitride (hBN) was performed in sodium hydroxide aqueous solution. With hBN, hBN-OH and nanofibrillated cellulose fibers (NFC), flexible free-standing high-content BN films were fabricated through vacuum filtration and LBL self-assembly methods. Their ato...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2018-07-01
|
| Series: | Journal of Materials Engineering |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2018/V46/I7/61 |
| Summary: | Surface hydroxyl treatment of hexagonal boron nitride (hBN) was performed in sodium hydroxide aqueous solution. With hBN, hBN-OH and nanofibrillated cellulose fibers (NFC), flexible free-standing high-content BN films were fabricated through vacuum filtration and LBL self-assembly methods. Their atomic oxygen resistance properties were evaluated in a ground-based simulation facility. The results show that mass loss and erosion yield (<i>E</i><sub><i>y</i></sub>) of hBN-OH/NFC film decline by 33% and 38% respectively compared with hBN/NFC film. After AO exposure, both films manifest carpet-like morphologies, elements oxidations and BN lattice distortions. And hBN-OH/NFC film possesses higher boron oxide content on the surface. Based on BN films responses, shielding AO models were put forward and influences of hydroxyl treatment on atomic resistance property of BN films were analysed. |
|---|---|
| ISSN: | 1001-4381 1001-4381 |