high resolution microstructure analysis of graphite

Characteristics and microstructure of graphite

2007/6/1The graphite encapsulated α-Fe particles were prepared by reduction of stage-2 and stage-3 FeCl3 graphite intercalation compounds (GICs) with metallic potassium. X-ray diffraction analysis (XRD), energy dispersive X-ray spectroscopy (EDS) investigation and transmission electron microscopy (TEM) observation show that the reduction products of stage-2 FeCl3-GICs contains more abundant α

Digital Microstructure Analysis System for Testing and

In this paper, we propose an automatic digital microstructure image analysis system to qualify and quantify the graphite in the form of nodular shape in ductile cast iron material based on ASTM E2567–11 standard specifications. The ASTM E2567-11

High Resolution Metallography of a Coarse

Volume 5, Issue 5 (December 2016) Special Issue Paper High-Resolution Metallography of a Coarse Microstructure: Graphite Formation in the Solid-State in Steel (Received 6 April 2016; accepted 20 July 2016) Published Online: 22 December 2016 CODEN: MPCACD

Study on the Comprehensive Properties and

At the beginning, a comparative analysis was made on the oxidation corrosion rate and ash content of A3-3 matrix graphite (MG) pebbles lathed before and after high temperature purification (HTP) treatment. Their oxidation corrosion rate and ash contents were almost identical, which indicated that the HTP process was to purify the entire MG pebbles and not limited on the surfaces. Furthermore

(PDF) The microstructure of nuclear graphite binders

The microstructures of the binder in two grades of nuclear graphite, Gilsocarbon graphite and Pile Grade A graphite, were characterized by light microscopy, transmission electron microscopy and high resolution transmission electron microscopy. A

Effect of Tensile Strength on the Microstructure of

Owing to the inhomogeneous distribution of FLiNaK salt impregnated into graphite which is observed by scanning electron microscopy and an element probe micro-analyzer, a map scan of in situ real-time tensile synchrotron-based two-dimensional X-ray diffraction (2D-XRD) at several fixed external forces was implemented to reveal the local microstructure evolution of graphite and FLiNaK salt

Image analysis of TEM pictures of fluorine

K. Oshida ef a/.: Image analysis of TEM pictures of fluorine-intercalated graphite fibers work reported here is mainly at 300 kV) to characterize well-ordered materials, such as ionic Graphite Intercala-tion Compounds (GIC's) where the superlattice structure can be

A TEM Study on the Microstructure of Fine Graphite Flake

A TEM Study on the Microstructure of Fine Flaky Graphite E. Moumeni 1, N.S.Tiedje, Andy Horsewell and J.H.Hattel1 1 Department of Mechanical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark Abstract In this investigation the

The effect of duty cycle on the microstructure and properties of graphite

The effect of duty cycle on the microstructure and properties of graphite-like amorphous carbon films prepared by unbalanced magnetron sputtering was investigated. The structure of the resultant carbon film is amorphous, as shown by high-resolution microscopy.

Study on the Comprehensive Properties and

At the beginning, a comparative analysis was made on the oxidation corrosion rate and ash content of A3-3 matrix graphite (MG) pebbles lathed before and after high temperature purification (HTP) treatment. Their oxidation corrosion rate and ash contents were almost identical, which indicated that the HTP process was to purify the entire MG pebbles and not limited on the surfaces. Furthermore

(PDF) Microstructural characterisation of nuclear grade

Examining the microstructure at higher resolution (Figure 3) it is evident that the 4 process of graphitization alters the microstructure. The material is dense, with less porosity, and the majority of the graphite crystallites are highly orientated, with few gasification pores apparent.

Comparison of the morphology, chemical composition

The structures of cryptocrystalline graphite (CG) and carbon black (CB) have been analyzed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), organic elemental analysis (OEA), X-ray diffraction (XRD), RAMAN and high-resolution transmission electron microscopy (HRTEM). These results indicate that CG has the same elemental composition as CB, with carbon

Generation and characterization of carbon fiber microstructure in atomistic simulations

Generation and characterization of carbon fiber microstructure in atomistic simulations Kaushik Joshi a, Mikhail I. Arefev a, b, Leonid V. Zhigilei a, * a Department of Materials Science and Engineering, University of ia, 395 McCormick Road, Charlottesville, VA, 22904-4745, USA

Metallic grain structures and microscopic analysis insight

Metallic grain structures and microscopic analysis Metallic materials are often interpreted in terms of their inner structure – known as the microstructure. Prepared in cooperation with optics and optoelectronics experts Zeiss, this application note explains all you

Digital Microstructure Analysis System for Testing and

In this paper, we propose an automatic digital microstructure image analysis system to qualify and quantify the graphite in the form of nodular shape in ductile cast iron material based on ASTM E2567–11 standard specifications. The ASTM E2567-11

Comparison of the morphology, chemical composition

2018/7/1The structures of cryptocrystalline graphite (CG) and carbon black (CB) have been analyzed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), organic elemental analysis (OEA), X-ray diffraction (XRD), RAMAN and high-resolution

Nanocomposite Microstructure and Environment Self

High-resolution transmission electron microscopy (HRTEM) images and selected area diffraction patterns (SADP) indicated a complex nanocomposite microstructure of the GLC films. As well as nanocrystalline graphite, a face-center cubic (fcc) diamond with a grain size in the range of 3–8 nm were dispersed in the amorphous carbon matrix inhomogenously and integrally.

On the deformation behavior and cracking of ductile iron;

Critical in this development was to be able to achieve a reliable high spatial resolution of strain around microstructural features, such as graphite particles. Measurement of local strain fi elds in cast iron materials have so far been relying on displacement of naturally occurring microstructure patterns such as graphite particles, which limits the spatial resolution of strain measurement.

The effect of duty cycle on the microstructure and

The effect of duty cycle on the microstructure and properties of graphite-like amorphous carbon films prepared by unbalanced magnetron sputtering was investigated. The structure of the resultant carbon film is amorphous, as shown by high-resolution transmission electron microscopy. Raman analysis shows that the studied films are dominated by spSUP2/SUP sites, and the intensity ratio of the

Comparative analysis of graphite oxidation behaviour based on

Comparative analysis of graphite oxidation behaviour based on microstructure Heinrich Badenhorst*, Walter Focke SEM images were obtained using an ultra-high-resolution field-emission 6 microscope (Zeiss Ultra Plus 55 FEGSEM) equipped with an in-lens

Fabrication and characterization of ultrafine graphite/carbon

compressive strengths of the graphite foam are 6.21, 8.43, 9.46, 9.13, 8.39 MPa/cm3 when the additive amount of ultrafine graphite is 0, 5, 10, 15, 20 wt%, respectively. It shows that the specific compressive strengths of ultrafine graphite reinforced foams are

Metallic grain structures and microscopic analysis insight

Metallic grain structures and microscopic analysis Metallic materials are often interpreted in terms of their inner structure – known as the microstructure. Prepared in cooperation with optics and optoelectronics experts Zeiss, this application note explains all you

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