Wei, Shasha Xie, Renqi Li, Yuanyou Meng, Jiahao Lin, Rongchuan Weng, Jianchun Li, Bo
Published in
Materials Research Express
Diamond films were deposited on 4H-SiC substrates by microwave plasma chemical vapor deposition (MPCVD). The substrate pretreatment method of electrostatic adsorption of seed crystals by nanodiamond suspensions was used, and the nucleation density of diamond on the substrate surface reached 1010/cm2 compared with ultrasonic seed crystals of diamond...
feng, lu liu, tianwei bai, xu yuhou, wu wang, he yan, guangyu
Diamond films were deposited on silicon nitride (Si3N4) substrates with three different roughnesses using the method of hot-filament chemical vapor deposition (HFCVD). The tribological properties of the film were studied by changing the deposition time, deposition distance, and methane (CH4) concentration. The friction coefficient, delamination thr...
zkria;, abdelrahman
Diamond is one of the fascinating films appropriate for optoelectronic applications due to its wide bandgap (5.45 eV), high thermal conductivity (3320 W m−1·K−1), and strong chemical stability. In this report, we synthesized a type of diamond film called nanocrystalline diamond (NCD) by employing a physical vapor deposition method. The synthesis pr...
Sorokin, Pavel B Yakobson, Boris I
Published in
Nano letters
Two-dimensional diamond, or diamane, is an ultrathin film with unique physical properties that combine the record values of the bulk crystal with the exciting features caused by the nanoscale nature. At the current stage of research, the diamane properties are mostly studied theoretically, and the main experimental efforts are directed at its synth...
Vokhmyanin, D. S. Oglezneva, S. A.
Published in
Russian Journal of Non-Ferrous Metals
The surface preparation is a prerequisite for ensuring the required properties of a diamond film formed by gas-phase deposition. The influence of the temperature and concentration of the CuSO4 etchant on the structural and phase compositions of the surface of hard-alloy materials is considered in this work, and the structural and phase compositions...
Belin, Michel Miki, Hiroyuki Takagi, Toshiyuki
International audience
Silva, Lilian Mieko
Água e energia são insumos indispensáveis para economias modernas e, quando dependem um do outro, surgem os mais complexos desafios. O grande problema existente é a falta de integração entre políticas dos setores de energia e de água, já que estes setores são bem desenvolvidos individualmente, mas apenas um esforço limitado é feito para gerenciar a...
Fodchuk, I. M. Borcha, M. D. Khomenko, V. Yu. Balovsyak, S. V. Tkach, V. M. Statsenko, O. O.
Published in
Journal of Superhard Materials
The authors put forward a procedure of determination of strain tensor components through the analysis of distribution of intensity of back-scattered electrons in Kikuchi patterns. The strain state has been studied in local areas of a synthetic diamond crystal produced by the temperature gradient method in the Fe–Al–C system through growing onto a d...
Jiang, Caiyi Guo, Shenghui Yang, Li Gao, Jiyun Hu, Tu Peng, Jinhui Zhang, Libo
Published in
Green Processing and Synthesis
Diamond films were synthesized in a CH4-H2 system with good surface quality by adjusting the additive amount of argon and oxygen gas. The diamond phase content and surface roughness of samples are 86.1% and 81.5 nm, respectively. The results indicate that only Ar addition will decrease the purity of diamond films, whereas Ar-O2 mixed gas can furthe...
Buijnsters, Josephus G.; Tsigkourakos, Menelaos-Charalampos; 7406... Hantschel, Thomas; Gomes, Francis O.V.; Nuytten, Thomas; Favia, Paola; Bender, Hugo; Arstila, Kai; Celis, Jean-Pierre; 14228; Vandervorst, Wilfried; 8850;
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B-doped diamond has become the ultimate material for applications in the field of microelectromechanical systems (MEMS), which require both highly wear resistant and electrically conductive diamond films and microstructures. Despite the extensive research of the tribological properties of undoped diamond, to date there is very limited knowledge of ...