Neutron diffraction study of Levantine Middle Bronze Age cast axes

Caspi, E. N.; Shalev, S.; Shilstein, S.Sh.; Paradowska, Anna; Kockelmann, W.; Levy, Yossi

doi:10.1088/1742-6596/251/1/012047

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…It is known that, in a bronze alloy, tin atoms occupy the position of copper in the cubic crystal structure, and a disordered crystal solid solution is formed. The lattice parameter of the copper–tin cubic phase depends on the concentration of tin [ 33 ]. The parameters of the unit cell of the cubic phase of copper–tin alloy in consideration of pure copper lattice parameters, the corresponding values of the relative concentration of tin were calculated from the neutron diffraction data.…”

Section: Resultsmentioning

confidence: 99%

Phase Composition and Its Spatial Distribution in Antique Copper Coins: Neutron Tomography and Diffraction Studies

et al. 2021

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The chemical and elementary composition, internal arrangement, and spatial distribution of the components of ancient Greek copper coins were studied using XRF analysis, neutron diffraction and neutron tomography methods. The studied coins are interesting from a historical and cultural point of view, as they are “Charon’s obol’s”. These coins were discovered at the location of an ancient Greek settlement during archaeological excavations on the “Volna-1” necropolis in Krasnodar Region, Russian Federation. It was determined that the coins are mainly made of a bronze alloy, a tin content that falls in the range of 1.1(2)–7.9(3) wt.%. All coins are highly degraded; corrosion and patina areas occupy volumes from ~27 % to ~62 % of the original coin volumes. The neutron tomography method not only provided 3D data of the spatial distribution of the bronze alloy and the patina with corrosion contamination inside coin volumes, but also restored the minting pattern of several studied coins. Taking into account the obtained results, the origin and use of these coins in the light of historical and economic processes of the Bosporan Kingdom are discussed.

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Section: Resultsmentioning

confidence: 99%

Phase Composition and Its Spatial Distribution in Antique Copper Coins: Neutron Tomography and Diffraction Studies

et al. 2021

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“…The ENGIN-X beamline has successfully been used to investigate strain, phase composition in various structures of historical [30][31][32]36] and archaeological [33][34][35] samples.…”

Section: Investigations Of Historical Samplesmentioning

confidence: 99%

Modern and Historical Engineering Components Investigated by Neutron Diffraction on ENGIN-X

Paradowska

Tremsin

Kelleher

et al. 2012

JMMP

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The ENGIN-X beamline is mainly used to determine residual strains/stresses deep within the interior of bulk engineering components. It is mainly used by scientists and engineers for the development of modern engineering processes and structural integrity investigations. ENGIN-X diffraction and transmission mode can be a very useful tool to measure strain, phase transitions, texture and material composition in spatial resolution in historical or archaeological artifacts and modern materials. The complexity of the shapes and sizes of the samples measured on ENGIN-X varies significantly between experiments, and this required the development of better planning, simulation and control software, SScanSS. In this paper an overview of recent developments in strain scanning on ENGIN-X and a highlight of current scientific research are presented.

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A non-destructive view with X-rays into the strain state of bronze axes

Glaser

Rothkirch

Techert

et al. 2016

Microchemical Journal

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In this paper we present a new approach using highly surface sensitive X-ray diffraction methods for archaeometrical investigation highlighted on the Neolithic Axe of Ahneby. Applying the sin 2 Ψ-method with a scintillation detector and a MAXIM camera setup, both were usually applied for material strain analysis on modern metal fabrics. We can distinguish between different production states of bronze axes: cast, forged and tempered. The method can be applied as a local probe of some 100th of μm 2 or integrative on a square centimeter surface area. We applied established synchrotron radiation based methods of material strain mapping and diffraction on a Neolithic bronze axe as well as replicated material for noninvasive analysis. The main goal of the described investigations was to identify the effects upon the bronze objects of post-cast surface treatment with stone tools and of heat treatment.

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Neutron diffraction study of Levantine Middle Bronze Age cast axes

Cited by 3 publications

References 9 publications

Phase Composition and Its Spatial Distribution in Antique Copper Coins: Neutron Tomography and Diffraction Studies

Phase Composition and Its Spatial Distribution in Antique Copper Coins: Neutron Tomography and Diffraction Studies

Modern and Historical Engineering Components Investigated by Neutron Diffraction on ENGIN-X

A non-destructive view with X-rays into the strain state of bronze axes

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