us4017673a - method and apparatus for graphitization of

Laboratory Graphitization Furnaces

CX-GF-Lab is vertical top loading induction heating furnace with round hot zone shape.This model is ideal for various research applications and new materials development.Simple operation and easy maintenance process of this furnace,save time and budget in

PROGRESS IN RADIOCARBON TARGET PREPARATION AT THE

itization). A new method of cleaning glassware and reagents used in sample processing, by baking them under a stream of oxygen, is described. The results show significant improvements in our procedural blanks. In addition, a new graphitization 2/Fe reduction2

Low‐temperature graphitization of amorphous carbon

Graphitization procedureFor each graphitization procedure, ca. 200 mg of CHT were put in a vertical fixed bed reactor, as schematically shown in Fig. 1. In each experiment, only a single parameter was changed, i.e., annealing temperature (750 or 1000 C), isotherm time on stream (2 or 6 h), or carrier of He or N2 gas flow (100 STP mL/min).

(12) Unlted States Patent (10) Patent N0.: US 8,154,279 B1

This invention relates a method and apparatus for the sens ing of magnetic properties and, more particularly, to a non destructive testing device for detecting graphitiZation and localiZed corrosion in gray cast iron, ductile iron, ferrous alloys and other magnetic2.

An ultrasonic method for the separation of

1992/11/10Chemical Geology, 100 (1992) 191-199 191 Elsevier Science Publishers B.V., Amsterdam [ALl An ultrasonic method for the separation of carbonaceous material from schists for the determination of graphitization degree by X-ray diffraction M.L.R.P. Castro Reis and

Graphitization of C/C Composites and their Cyclic

1996/1/1Graphitization of C/C Composites and their Cyclic Voltammograms in Dilute Sulfuric Acid Graphitization of C/C Composites and their Cyclic Voltammograms in Dilute Sulfuric Acid Kanematsu,, H.; Kunieda,, Y.; Yokoi,, J.; Inoue,, T. 1996-01-01 00:00:00 Carbon-carbon composites (C/C) are representative advanced materials utilized for brake disks of aircraft, the nose and leading edges of

Catalytic Graphitization for Preparation of Porous Carbon

Catalytic Graphitization for Preparation of Porous Carbon Material Derived from Bamboo Precursor and Performance as Electrode of Electrical Double-Layer Capacitor Tsubota Toshiki, Maguchi Yuta, Kamimura Sunao, Ohno Teruhisa, Yasuoka

An ultrasonic method for the separation of

1992/11/10Chemical Geology, 100 (1992) 191-199 191 Elsevier Science Publishers B.V., Amsterdam [ALl An ultrasonic method for the separation of carbonaceous material from schists for the determination of graphitization degree by X-ray diffraction M.L.R.P. Castro Reis and

Apparatus for lengthwise graphitization (LWG) of carbon

Graphitization system method and apparatus 1983-07-19 Karagoz 373/120 4049900 Continuous graphitizing furnace with a vertical displacement of the charge 1977-09-20 Genevois et al. 13/7 4017673 Method and apparatus for graphitization of carbon materials

A study of the graphitization of iron carbide

Apparatus ^ 13 Method of procedure 2S Calibration of the Conductivity Meter 22 Investigation of the Reaction, 3Fe + 2C0 = Fe^+. COgV using Iron 25 Investigation of the Reaction., 3Ee + 8C0 Fe^G + OOg, using Iron-Carbon Alloyi, 35 Calculations and

US Patent for Method for the preparation of graphene or

The graphitization method followed for the chitosan is also identical to that described in example 1. The sample of graphenic material obtained from the chitosan shows uniform Raman spectra throughout the whole surface and indistinguishable from those registered for

Effects of Graphitization and Bonding Configuration in

Effects of Graphitization and Bonding Configuration in Iron− Nitrogen-Doped Carbon Nanostructures on Surface-Enhanced Raman Scattering Iris Ching-Ya Chang,† Ya-Sen Sun,*,† Yaw-Wen Yang,‡ Chia-Hsin Wang,‡ Shao-Liang Cheng,† and Wei-Wen Hu† †Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan

Control of physical properties of carbon nanofibers

2016/4/12The graphitization degree of the carbon nanofiber was determined by I d /I g ratio, which is the ratio between the peak intensity of the disordered carbon (1355 cm −1) and graphitic carbon (1575 cm −1) from Raman spectrum [], the crystallite size along a-axis (L aI

Low

2014/6/1Usually, the graphitization process is made by applying high current densities or temperatures ( 2500 C) [39, 40, 41]. Apart the need to use a proper graphitizable carbon precursor such as CNF [ 42, 43 ], the main disadvantages of these processes are the high energy consumption, the low yield, and the surface area loss.

Low‐temperature graphitization of amorphous carbon

Graphitization procedureFor each graphitization procedure, ca. 200 mg of CHT were put in a vertical fixed bed reactor, as schematically shown in Fig. 1. In each experiment, only a single parameter was changed, i.e., annealing temperature (750 or 1000 C), isotherm time on stream (2 or 6 h), or carrier of He or N2 gas flow (100 STP mL/min).

Method and apparatus for graphitization of carbon

Method and apparatus for graphitization of carbon materials United States Patent 4017673 Abstract: Continuous-type furnace for the graphitization of carbon bodies having a preheat zone, a cooling zone and a heating zone provided with an electric

Satoshi Kubo Yasumitsu Uraki Yoshihiro Sano Catalytic graphitization

2002/3/27graphitization method that did not require any special apparatus. Catalytic graphitization is a convenient technique for enhancing the crystallinity of carbon using transition metals or their inorganic compounds, such as iron, cobalt, and nickel, as the catalysts.11

Low

2014/6/1Usually, the graphitization process is made by applying high current densities or temperatures ( 2500 C) [39, 40, 41]. Apart the need to use a proper graphitizable carbon precursor such as CNF [ 42, 43 ], the main disadvantages of these processes are the high energy consumption, the low yield, and the surface area loss.

LIMNOLOGY and OCEANOGRAPHY: METHODS

2010/7/16retained), this method provides both qualitative and quanti - tative information about the original BC with negligible methodological artifacts. A recent intercomparison of BC analysis methods (Hammes et al. 2007) revealed that the previous version of the BPCA . .

Apparatus for lengthwise graphitization (LWG) of carbon

Graphitization system method and apparatus 1983-07-19 Karagoz 373/120 4049900 Continuous graphitizing furnace with a vertical displacement of the charge 1977-09-20 Genevois et al. 13/7 4017673 Method and apparatus for graphitization of carbon materials

Controllable preparation of nitrogen

2019/10/15In this paper, based on efficient solid phase synthesis method, a new-style graphene-like graphitized carbon nanocages with different graphitization degree are prepared by Ni-catalyzed graphitization strategy, with low-cost Tween-20 as molecular carbon

EXPERIENCES OF PRODUCTION AND HOMOGENEITY ANALYSIS

2016/4/15whether the inhomogeneity depended on the graphitization method (i.e. the combustion or the reduction method) or on the material itself, 3 different graphitization methods and 2 different methods of recrystallization were tested. INTRODUCTION Accelerator mass

A new role for phosphorus in graphitization of phenolic

1999/2/1We are planning to develop a phosphoric acid loaded ACF based on the newly developed phosphorus containing phenolic resin. In the present study, the carbonization and graphitization behaviors of the resin were examined. 2. Experimental2.1. Sample preparation

Graphitization of Evaporated Carbon (Journal Article)

article{osti_4787458, title = {Graphitization of Evaporated Carbon}, author = {Noda, Tokiti and Matsuoka, Hiroshi}, abstractNote = {Pure carbon deposits were prepared by the evaporation of graphite of atomic reactor grade in a vacuum furnace and were heat-treated at temperatures between 2000 and 3000 deg C either in vacuo or under the atmospheric pressure.

Controllable preparation of nitrogen

2019/10/15In this paper, based on efficient solid phase synthesis method, a new-style graphene-like graphitized carbon nanocages with different graphitization degree are prepared by Ni-catalyzed graphitization strategy, with low-cost Tween-20 as molecular carbon

The thermal conductivity of ribbon

1004 N.C.Gallego et al. / Carbon 38 (2000) 1003–1010 conductivity of graphite has been studied extensively, and apparatus was fed by a one-half-inch barrel, single-screw it is of particular interest because of its very large extruder. Pelletized pitch was loaded into a

Preparation of Highly Porous Graphitic Activated

The obstruction of traditional chemical activation lies in the addition of excessive catalysts to prepare the highly porous graphitic activated carbon (HPGAC), we propose the hydrothermal pretreatment-assisted chemical activation method to synthesize HPGAC as electrode materials using a small amount of Na-based catalysts (20 wt %). Hydrolysis accompanied by the strong depolymerization and

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