“Real time” determination of porosity development in carbons: a combined SAXS/TGA approach

Calo, J.M.; Hall, Peter; Houtmann, S.; Castelló, Dolores Lozano; Winans, Randall E.; Seifert, Sönke

doi:10.1016/s0167-2991(02)80220-8

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…Sample data from the activation of Saran char in oxygen from this work are presented in Fig. 1 [27]. As shown, the scattering curves all seem to intersect at about q ¼ 0:045 A À1 .…”

Section: Scattering Fundamentalsmentioning

confidence: 73%

“…Calo et al [27] reported on the application of a combined SAXS/TGA approach focused on ''real time'' resolution of porosity development in carbons. A thermogravimetric apparatus was mounted in the beamline at the Advanced Photon Source at the Argonne National Laboratory (US) and differential scattering intensity curves were obtained during activation of different carbons in oxygen.…”

Section: Scattering Fundamentalsmentioning

confidence: 99%

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The application of small angle scattering techniques to porosity characterization in carbons

Calo

Hall

2004

Carbon

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“…Sample data from the activation of Saran char in oxygen from this work are presented in Fig. 1 [27]. As shown, the scattering curves all seem to intersect at about q ¼ 0:045 A À1 .…”

Section: Scattering Fundamentalsmentioning

confidence: 73%

Section: Scattering Fundamentalsmentioning

confidence: 99%

The application of small angle scattering techniques to porosity characterization in carbons

Calo

Hall

2004

Carbon

Self Cite

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“…They also showed that for total porosity, both He pycnometry and USANS need to be employed. Calo et al [126] used combined SAXS/TGA to improve the resolution of porosity development in carbons. SAXS can be additionally linked the with CMT imaging technique that provides access to volume-resolved information [127] and the extension of the measurement range to micrometer levels [128].…”

Section: Methods Used To Assess Porosity In Materialsmentioning

confidence: 99%

Contemporary Approach to the Porosity of Dental Materials and Methods of Its Measurement

Sarna‐Boś

Skic

Sobieszczański

et al. 2021

IJMS

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Porosity is an important parameter for characterizing the microstructure of solids that corresponds to the volume of the void space, which may contain fluid or air, over the total volume of the material. Many materials of natural and technically manufactured origin have a large number of voids in their internal structure, relatively small in size, compared to the characteristic dimensions of the body itself. Thus, porosity is an important feature of industrial materials, but also of biological ones. The porous structure affects a number of material properties, such as sorption capacity, as well as mechanical, thermal, and electrical properties. Porosity of materials is an important factor in research on biomaterials. The most popular materials used to rebuild damaged tooth tissues are composites and ceramics, whilst titanium alloys are used in the production of implants that replace the tooth root. Research indicates that the most comprehensive approach to examining such materials should involve an analysis using several complementary methods covering the widest possible range of pore sizes. In addition to the constantly observed increase in the resolution capabilities of devices, the development of computational models and algorithms improving the quality of the measurement signal remains a big challenge.

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“…Each of these methods has its advantages and disadvantages, but they provide a possibility to obtain important information about the porous structure of the materials (specific area, total pore volume, micropore volume, dimensions and forms of pores, their size distribution, fractal structure, etc.). The advantages of SAXS method, in comparison with other methods, may include the following [ 25 , 26 ]: (1) it is sensitive to both closed and open porosity, (2) SAXS intensity profiles are sensitive to shape and orientation of the scattering, (3) the method can be used to investigate samples that are saturated with liquids, (4) it can be used to investigate the pore texture of materials under operating conditions. Thus, the aim of the work is to perform thermal modification of PCM at different temperatures and times and to investigate the effect of this modification on its morphology and fractal structure using the SAXS method.…”

Section: Introductionmentioning

confidence: 99%

SAXS investigation of nanoporous structure of thermal-modified carbon materials

et al. 2014

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The article investigates the effect of thermal modification of porous carbon material (PCM), obtained from plant feedstock, on its morphology and fractal structure by small-angle X-ray scattering (SAXS) method. The analysis of the scattering intensity curves serve the basis for calculating the parameters of the PCM porous structure: the Porod constant, the Porod invariant, average pore radius, specific surface area, and mass and surface fractal dimensions. It has been found out that the PCMs obtained have fractal structure, formed from mass and surface fractals, the sizes of which increase at the growth of temperature and modification time.PACS81.05.Uw; 61.05.cf; 82.47.Aa

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“Real time” determination of porosity development in carbons: a combined SAXS/TGA approach

Cited by 7 publications

References 1 publication

The application of small angle scattering techniques to porosity characterization in carbons

The application of small angle scattering techniques to porosity characterization in carbons

Contemporary Approach to the Porosity of Dental Materials and Methods of Its Measurement

SAXS investigation of nanoporous structure of thermal-modified carbon materials

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