scholarly journals Three-dimensional microstructural characterization of bulk plutonium and uranium metals using focused ion beam technique

2016 ◽  
Vol 473 ◽  
pp. 264-271 ◽  
Author(s):  
Brandon W. Chung ◽  
Robert G. Erler ◽  
Nick E. Teslich
Keyword(s):  
Focused Ion Beam ◽  
Ion Beam ◽  
Three Dimensional ◽  
Microstructural Characterization ◽  
Beam Technique

Three Dimensional Microstructural Characterization of Cathode Degradation in SOFCs Using Focused Ion Beam and SEM

2014 ◽  
Vol 61 (1) ◽  
pp. 109-120 ◽  
Author(s):  
J. A. Taillon ◽  
C. Pellegrinelli ◽  
Y. Huang ◽  
E. D. Wachsman ◽  
L. G. Salamanca-Riba
Keyword(s):  
Focused Ion Beam ◽  
Ion Beam ◽  
Three Dimensional ◽  
Microstructural Characterization ◽  
Cathode Degradation

Microstructural Characterization of Dehydrogenated Products of the LiBH4-YH3 Composite

2014 ◽  
Vol 20 (6) ◽  
pp. 1798-1804 ◽  
Author(s):  
Ji Woo Kim ◽  
Kee-Bum Kim ◽  
Jae-Hyeok Shim ◽  
Young Whan Cho ◽  
Kyu Hwan Oh
Keyword(s):  
Focused Ion Beam ◽  
Ion Beam ◽  
Microstructural Characterization ◽  
Static Vacuum ◽  
Lithium Borohydride ◽  
Transmission Electron ◽  
Resolution Imaging ◽  
Yttrium Hydride ◽  
Beam Technique

AbstractThe dehydrogenated microstructure of the lithium borohydride-yttrium hydride (LiBH4-YH3) composite obtained at 350°C under 0.3 MPa of hydrogen and static vacuum was investigated by transmission electron microscopy combined with a focused ion beam technique. The dehydrogenation reaction between LiBH4 and YH3 into LiH and YB4 takes place under 0.3 MPa of hydrogen, which produces YB4 nano-crystallites that are uniformly distributed in the LiH matrix. This microstructural feature seems to be beneficial for rehydrogenation of the dehydrogenation products. On the other hand, the dehydrogenation process is incomplete under static vacuum, leading to the unreacted microstructure, where YH3 and YH2 crystallites are embedded in LiBH4 matrix. High resolution imaging confirmed the presence of crystalline B resulting from the self-decomposition of LiBH4. However, Li2B12H12, which is assumed to be present in the LiBH4 matrix, was not clearly observed.

scholarly journals FIB-SEM Three-Dimensional Tomography for Characterization of Carbon-Based Materials

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Nan Nan ◽  
Jingxin Wang
Keyword(s):  
Focused Ion Beam ◽  
Ion Beam ◽  
Three Dimensional ◽  
3D Tomography ◽  
Tomography System ◽  
Internal Structures ◽  
Potential Applications ◽  
Scanning Electron ◽  
Carbon Based

A review on the recent advances of the three-dimensional (3D) characterization of carbon-based materials was conducted by focused ion beam-scanning electron microscope (FIB-SEM) tomography. Current studies and further potential applications of the FIB-SEM 3D tomography technique for carbon-based materials were discussed. The goal of this paper is to highlight the advances of FIB-SEM 3D reconstruction to reveal the high and accurate resolution of internal structures of carbon-based materials and provide suggestions for the adoption and improvement of the FIB-SEM tomography system for a broad carbon-based research to achieve the best examination performances and enhance the development of innovative carbon-based materials.

A Direct and Quantitative Three-Dimensional Reconstruction of the Internal Structure of Disordered Mesoporous Carbon with Tailored Pore Size

2013 ◽  
Vol 19 (3) ◽  
pp. 745-750 ◽  
Author(s):  
Juan Balach ◽  
Flavio Soldera ◽  
Diego F. Acevedo ◽  
Frank Mücklich ◽  
César A. Barbero
Keyword(s):  
Pore Size ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Three Dimensional ◽  
Quantitative Characterization ◽  
Resorcinol Formaldehyde ◽  
Dual Beam ◽  
Dimensional Reconstruction ◽  
A New Technique

AbstractA new technique that allows direct three-dimensional (3D) investigations of mesopores in carbon materials and quantitative characterization of their physical properties is reported. Focused ion beam nanotomography (FIB-nt) is performed by a serial sectioning procedure with a dual beam FIB-scanning electron microscopy instrument. Mesoporous carbons (MPCs) with tailored mesopore size are produced by carbonization of resorcinol-formaldehyde gels in the presence of a cationic surfactant as a pore stabilizer. A visual 3D morphology representation of disordered porous carbon is shown. Pore size distribution of MPCs is determined by the FIB-nt technique and nitrogen sorption isotherm methods to compare both results. The obtained MPCs exhibit pore sizes of 4.7, 7.2, and 18.3 nm, and a specific surface area of ca. 560 m2/g.

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