期刊論文
| 學年 | 102 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2014-04-01 |
| 作品名稱 | Temperature Dependent Tribological Studies and Phase Transformation in Ultra-Nanocrystalline Diamond Films |
| 作品名稱（其他語言） | |
| 著者 | Radhika Ramadoss; Niranjan Kumar; Kamatchi Jothiramalingam Sankaran; Pankaj Das; T. R. Ravindran; Sitaram Dash; Ashok Kumar Tyagi; Tai, Nyan-Hwa; Lin, I-Nan |
| 單位 | 淡江大學物理學系 |
| 出版者 | Valencia: American Scientific Publishers |
| 著錄名稱、卷期、頁數 | Science of Advanced Materials 6(4), p.751–759 |
| 摘要 | Temperature dependent tribological properties of ultra-nanocrystalline diamond (UNCD) films were studied in ambient, dry and unlubricated conditions while sliding against Al2O3 ball. In as-grown UNCD film, there is well defined grain/grain boundary interphase morphology. However, larger grains along with graphite/amorphous carbon (a-C) phase are formed in this film when subjected to tribo-test at 600 °C. These morphological aspects are evident from high resolution transmission electron microscopy (HRTEM). As revealed from micro-Raman spectroscopy, the inner region of wear tracks of high temperature tribo-tested film shows surface chemical changes accompanied with amorphization. In addition, micro-FTIR measurement confirmed pronounced surface oxidation in the wear track of high temperature tribo-tested film. Ultra-low friction coefficient and high wear resistance of these films were measured at room temperature and 200 °C. Such an ultra-low friction coefficient can be attributed to passivation of surface dangling bonds by the formation of weak van der Waals and hydrogen bonds. However, at high temperature (600 °C), the tribological performance of the film was found to degrade and at early sliding passes it deformed and failed abruptly due to accompanied oxidation and amorphization/polymerization. |
| 關鍵字 | HIGH TEMPERATURE GRAPHITIZATION;HIGH TEMPERATURE TRIBOLOGY TEST;PHASE TRANSFORMATION;ULTRA-NANOCRYSTALLINE DIAMOND FILMS |
| 語言 | en |
| ISSN | 1947-2935;1947-2943 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | Lin, I-Nan |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/97216 ) |