Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations | |
Department | 固体润滑国家重点实验室 |
Huo, Lei1,2; Wang, Shunhua1; Pu JB(蒲吉斌)2; Sun JH(孙军辉)2,3; Lu ZB(鲁志斌)3; Ju, Pengfei4; Wang LP(王立平)2; Pu JB(蒲吉斌) | |
2018 | |
Source Publication | Applied Surface Science |
ISSN | 0169-4332 |
Volume | 436Pages:893-899 |
Abstract | The friction behavior and the mechanism of DLC films in CO2 atmosphere are rarely explored, which is a significant obstacle for the potential practical application of DLC films in primarily CO2 environment. Here, the experiments and first-principles calculations are performed to simultaneously investigate this theme. We find that DLC films in CO2 atmosphere exhibit astoundingly low friction coefficient compared with in ambient air and vacuum atmospheres. The XPS and Raman spectrums demonstrate the possibly activation of CO2 molecule in the shearing interfaces, which may be critical for the low friction of DLC films in CO2 atmosphere. The calculated results reveal that the lactone groups can easily form during the horizontally chemisorption of CO2 molecule on the DLC surface, which is energetic and is a favorable process under the interfacial stress. Because of the presence of the lone-pairs of the lactone group, the lactone-terminated surfaces appear to be responsible for the low friction of DLC films in CO2 atmosphere. The studies may open up the possibility for DLC films usage in Mars applications. |
Keyword | Dlc Co2 Friction First-principles |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.apsusc.2017.12.044 |
Funding Organization | National Natural Science Foundation of China (Grant No. 51775539);the Key Research Projects of Frontier Science, Chinese Academy of Sciences (Grant No. QYZDY-SSW-JSC009);National Key R&D Program of China (Grant No. 2017YFB0702303);the Zhejiang Provincial Natural Science Foundation (Grant No. LZ17E050004) |
Indexed By | SCI |
Language | 英语 |
Funding Project | 低维材料摩擦学研究组 |
compositor | 第三作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23725 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Pu JB(蒲吉斌) |
Affiliation | 1.Lanzhou Jiaotong Univ, Sch Mechatron Engn, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 4.Shanghai Aerosp Equipment Manufacture, Shanghai 200000, Peoples R China |
Recommended Citation GB/T 7714 | Huo, Lei,Wang, Shunhua,Pu JB,et al. Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations[J]. Applied Surface Science,2018,436:893-899. |
APA | Huo, Lei.,Wang, Shunhua.,Pu JB.,Sun JH.,Lu ZB.,...&蒲吉斌.(2018).Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations.Applied Surface Science,436,893-899. |
MLA | Huo, Lei,et al."Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations".Applied Surface Science 436(2018):893-899. |
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