نتایج جستجو برای: graphite powder
تعداد نتایج: 61088 فیلتر نتایج به سال:
Electric discharge machining is extensively used to process difficult cut materials such as superalloys, composite etc. The quality of can be improved by adding particles into the dielectric fluid which commonly known powder mixed electric (PMEDM). In present study, titanium and graphite are added effects powders have been analysed on material removal rate, surface roughness, microhardness morp...
In this study, microplasma was generated in the distilled water, single-walled carbon nanotubes (SWCNTs) and graphite powder suspensions by using pulsed streamer discharge technique respectively. The phenomenon of microplasma in these suspensions was detected by using ICCD camera. Photograph of microplasma in the SWCNT suspension revealed that the microplasma was very stable and number of the d...
Catalytic graphitization for (14)C-accelerator mass spectrometry ((14)C-AMS) produced various forms of elemental carbon. Our high-throughput Zn reduction method (C/Fe = 1:5, 500 degrees C, 3 h) produced the AMS target of graphite-coated iron powder (GCIP), a mix of nongraphitic carbon and Fe(3)C. Crystallinity of the AMS targets of GCIP (nongraphitic carbon) was increased to turbostratic carbon...
A Johnson Matthey 287 (JM 287) graphite powder disks sandwiched between two nickel screens was used as working electrodes in 1.0 M lithium hexafluorophosphate in mixed carbonate ester electrolyte. Their intrinsic impedance and lithium intercalation kinetics were determined using several different electrochemical impedance spectroscopy (EIS) protocols. The thermal stability of the electrolyte wa...
Fluorescent nano-graphite oxides (NGO) with different size distribution were prepared via a one-pot hydrothermal route using ultrasmall graphite powder as starting material and subsequently separated using dialysis tubes with different molecular weight cutoff. The biomedical applications of these NGO for cell imaging were further investigated. Fourier transform infrared spectra demonstrated tha...
We have recently shown that the vacuum-deposited complex [Fe(II)L(NCS)2] (L: 1-{6-[1,1-di(pyridin-2-yl)ethyl]-pyridin-2-yl}-N,N-dimethylmethanamine) is capable of a thermally induced spin crossover (SCO) in direct contact with a graphite surface. The SCO significantly differs from the transition behaviour in the bulk phase (powder). In the present work, the assumption of virtually no intermolec...
This paper presents an alternative strategy for manufacturing solid-state reference electrodes based on particles of graphite/silver/silver chloride synthesized by electroless deposition of metallic silver and silver chloride on graphite powder. Two kinds of reference electrodes were manufactured by mixing these particles with epoxy resin and hardener: quasi-reference and all-solid-state contai...
A novel potentiometric, enantioselective membrane electrode based on graphite paste (graphite powder and paraffin oil), impregnated with 10–3 mol/L 2-hydroxy-3-trimethylammoniopropyl-β-cyclodextrin (as chloride salt) solution, has been constructed. The potentiometric, enantioselective membrane electrode can be used for the reliable assay of S-enalapril as raw material and from its pharmaceutica...
A non-isolated pentagon rule metallic carbide clusterfullerene containing a heptagonal ring, Sc2C2@Cs(hept)-C88, was isolated from the raw soot obtained by electric arc vaporization of graphite rods packed with Sc2O3 and graphite powder under a helium atmosphere. The Sc2C2@Cs(hept)-C88 was purified by multistage high-performance liquid chromatography (HPLC), cocrystallized with Ni-(octaethylpor...
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