Facile preparation of amorphous carbon-coated tungsten trioxide containing oxygen vacancies as photocatalysts for dye degradation

2019 ◽  
Vol 54 (15) ◽  
pp. 10656-10669 ◽  
Author(s):  
Mingxing Tong ◽  
Jiaxing Yang ◽  
Qiuyang Jin ◽  
Xuan Zhang ◽  
Jing Gao ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
Tungsten Trioxide ◽  
Oxygen Vacancies ◽  
Dye Degradation ◽  
Carbon Coated ◽  
Facile Preparation

One-pot synthesis of carbon coated Fe3O4 nanosheets with superior lithium storage capability

2015 ◽  
Vol 3 (8) ◽  
pp. 4716-4721 ◽  
Author(s):  
Guoxin Gao ◽  
Shiyao Lu ◽  
Bitao Dong ◽  
Zhicheng Zhang ◽  
Yuansuo Zheng ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
Large Scale ◽  
Solution Method ◽  
Lithium Storage ◽  
One Pot ◽  
One Pot Synthesis ◽  
Carbon Coated ◽  
Storage Properties

Large-scale flat Fe3O4 nanosheets coated by an amorphous carbon overlayer (denoted as Fe3O4@C NSs) was prepared via a simple one-pot solution method. When evaluated as an electrode for LIBs, the as-prepared Fe3O4@C NSs hybrids exhibit highly enhanced lithium storage properties.

scholarly journals Differentiation of Osteoblast and Osteoclast Cells on Hydrogenated-Tetrahedral Amorphous Carbon Coated Titanium

2016 ◽  
Vol 29 (3) ◽  
pp. 413-418 ◽  
Author(s):  
Takahiro Shuto ◽  
Tatsuyuki Nakatani ◽  
Keishi Okamoto ◽  
Natsumi Saizaki ◽  
Sumiyo Mimura ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
Tetrahedral Amorphous Carbon ◽  
Carbon Coated

Machining Response and Damage Evolution of Amorphous Carbon Coated Tools in High-Speed Micromilling of Ti–6Al–4V

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Rinku K. Mittal ◽  
Salil S. Kulkarni ◽  
Harish Barshilia ◽  
Ramesh Singh
Keyword(s):  
Amorphous Carbon ◽  
Cutting Forces ◽  
Damage Evolution ◽  
Damage Assessment ◽  
High Speed ◽  
Solid Lubricant ◽  
Coated Tools ◽  
Tool Coating ◽  
Carbon Coated ◽  
Cutting Zone

Abstract Micromilling process is widely used to create complex 3D miniature products due to its flexibility and its ability to process difficult-to-cut material like Titanium alloys. High rotational speeds are used to overcome the limited flexural stiffness of the tool but the cutting zone temperatures rise due to the high rotational speeds. In addition to this, friction between the tool workpiece and tool chip also plays a major role in the temperature rise. The friction and temperature affect the cutting forces, tool life and stability of the process. To reduce the friction and heat generation, nanostructured solid lubricant coatings can be used. This study is focused on characterizing the effect of amorphous carbon (WC/a-C) coating on the micromachining response during high-speed micromilling of Ti–6Al–4V. A decrease in cutting forces for coated tools is observed for lower feed. A comprehensive tool coating damage assessment has been done in terms of debonding area on flank and rake faces. An increase in debonding area has been observed with lengths of cut but at a feed/flute of 4 μm, tool breakage occurs after a machining length of 60 mm.

Tribo-Chemical Wear of Amorphous Carbon Overcoats and TiC in Al2O3-TiC Sliders

2000 ◽  
Vol 123 (2) ◽  
pp. 324-329 ◽  
Author(s):  
Lihong Zhang
Keyword(s):  
Amorphous Carbon ◽  
Shear Force ◽  
Frictional Heating ◽  
Carbon Diffusion ◽  
Raman Analysis ◽  
Titanium Oxidation ◽  
Carbon Coated ◽  
Carbon Overcoats ◽  
Interface Materials ◽  
Crystalline Graphite

Ambient drag experiments were carried out using Al2O3-TiC sliders and carbon-coated aluminum/magnesium substrate disks. Worn carbon of disks resulted in sub-micron particles that transferred to smears under frictional heating and mechanical shear force. Raman analysis found graphitization for carbon debris and smears but not for carbon within wear tracks. The carbon of wear tracks was also considered graphitized but was very superficial. Decomposition of TiC in DLC-coated and uncoated sliders was also observed and caused by carbon diffusion and titanium oxidation. Diffused carbon could be poly-crystalline graphite and amorphous depending on the reactive environment of the interface. Discussions were made on tribo-chemical wear of the interface materials.

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