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Morphological and microstructural characterization of an ancient Chola bronze statuette by neutron‑based non‑invasive techniques

Cantini, Francesco (author), Creange, Sara (author), Li, Y. (author), van Eijck, L. (author), Kardjilov, Nikolay (author), Kabra, Saurabh (author), Grazzi, Francesco (author)

The evolution of metallurgy is a fundamental aspect related to the knowledge of the technological level of ancient civilizations, for which the information was mostly part of an oral tradition. The ancient, preserved artefacts are the only keepers of this long gone knowledge. Most advanced non-invasive techniques provide us the key to access...

journal article 2024

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Change lost: Corrosion of Roman copper alloy coins in changing and variable burial environments

Huisman, Luc Hans (author), Ackermann, Regula (author), Claes, Liesbeth (author), van Eijck, L. (author), de Groot, Tessa (author), Joosten, Ineke (author), Kemmers, Fleur (author), Kerkhoven, Nils (author), Ngan-Tillard, D.J.M. (author)

We studied the corrosion of Roman copper alloy coins that experienced alternations or progressive changes in their burial environment. We used coins that were still embedded in soil or in a concretion selectedfrom three professional excataved sites - Berlicum and Krommenie in the Netherlands and Kempraten in Switserland. mCT scanning and neutron...

journal article 2023

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Improved methodologies to study the performance of the ANET Compact Neutron Collimator

Sans-Planell, O. (author), Cantini, F. (author), Costa, M. (author), Durisi, E. (author), Grazzi, F. (author), Mafucci, E. (author), Monti, V. (author), Bedogni, R. (author), Li, Y. (author), van Eijck, L. (author)

The ANET project aims at developing 2D compact neutron collimators for neutron imaging applications. The results of the ANET collimator performances, presented in this communication, are based on data collected at the FISH beamline at TU-Delft. Two independent methods to evaluate the neutron radiography resolution are described and discussed,...

journal article 2023

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Unravelling the construction of silver filigree spheres from a seventeenth century shipwreck using non-invasive imaging

van der Stok-Nienhuis, Janneke (author), Beentjes, Tonny (author), Ngan-Tillard, D.J.M. (author), van Eijck, L. (author), Joosten, Ineke (author), van Bommel, Maarten R. (author)

The structure of five rare filigree spheres from a seventeenth century shipwreck was examined in order to unravel their condition, manufacturing process and function. This study focuses on the application of non-invasive imaging techniques: optical microscopy, X-radiography, X-ray micro-computed tomography and neutron computed tomography. A...

journal article 2022

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A case study for scientific research prior to conservation of marine metal artefacts

van der Stok-Nienhuis, Janneke (author), Kuiper, Elisabeth (author), Beentjes, Tonny (author), Joosten, Ineke (author), van Eijck, L. (author), Zhou, Z. (author), van Bommel, Maarten (author)

A rare find of a high-status 17th century oval box, retrieved from a shipwreck, provided a unique opportunity to research the construction and finishing layers of an object that is untouched for 350 years. This case study was used to demonstrate the extent of data that can be gained from analytical techniques prior to conservation. The...

journal article 2021

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Neutron tomography of Van Leeuwenhoek's microscopes

Cocquyt, Tiemen (author), Zhou, Z. (author), Plomp, J. (author), van Eijck, L. (author)

The technique of neutron tomography has, after 350 years, enabled a first look inside the iconic single-lens microscopes of Antoni van Leeuwenhoek. Van Leeuwenhoek's 17th-century discovery of "animalcules"marks the birth of microbiology. His skillfully self-produced microscope lenses remained unsurpassed for over 150 years. Neutron tomography...

journal article 2021

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Neutron Diffraction Study of a Sintered Iron Electrode In Operando

Weninger, B. (author), Thijs, M.A. (author), Nijman, Jeroen A.C. (author), van Eijck, L. (author), Mulder, F.M. (author)

Iron is a promising, earth-abundant material for future energy applications. In this study, we use a neutron diffractometer to investigate the properties of an iron electrode in an alkaline environment. As neutrons penetrate deeply into materials, neutron scattering gives us a unique insight into what is happening inside the electrode. We made...

journal article 2021

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Understanding the activation of ZSM-5 by phosphorus: Localizing phosphate groups in the pores of phosphate-stabilized ZSM-5

Louwen, Jaap N. (author), van Eijck, L. (author), Vogt, Charlotte (author), Vogt, Eelco T.C. (author)

Fluid catalytic cracking (FCC) produces (the feedstock for) a major part of the world's fuels, as well as chemical building blocks for, for example, polymers, pharmaceuticals, and specialty materials. ZSM-5 is the active ingredient in propyleneselective FCC catalyst systems and is stabilized or activated with phosphorus compounds. Despite...

journal article 2020

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Structural and Thermodynamic Investigation of the Perovskite Ba₂NaMoO_5.5

Kauric, Guilhem (author), Epifano, E. (author), Martin, Philippe M. (author), van Eijck, L. (author), Bouëxière, Daniel (author), Clavier, Nicolas (author), Guéneau, Christine (author), Smith, A.L. (author)

Neutron diffraction, X-ray absorption spectroscopy (XAS), and Raman spectroscopy measurements of the quaternary perovskite phase Ba₂NaMoO_5.5 have been performed in this work. The cubic crystal structure in space group Fm3¯ m has been refined using the Rietveld method. X-ray absorption near-edge structure...

journal article 2020

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Investigation of the Cs₂(Mo,Te)O₄Solid Solution and Implications on the Joint Oxyde-Gaine System in Fast Neutron Reactors

Epifano, E. (author), Volfi, Andrea (author), Abbink, Maas (author), Nieuwland, Hendrik (author), van Eijck, L. (author), Wallez, Gilles (author), Banerjee, Dipanjan (author), Martin, Philippe M. (author), Smith, A.L. (author)

The formation of a thin layer, the so-called Joint Oxyde-Gaine (JOG), between the (U,Pu)O2 fuel pellets and the cladding has been observed in fast neutron reactors, due to the accumulation of volatile fission products. Cs2MoO4 is known to be one of the major components of the JOG, but other elements are also present, in particular tellurium...

journal article 2020

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Tuning the magneto-elastic transition of (Mn,Fe,V)₂(P,Si) alloys to low magnetic field applications

Lai, J. (author), You, X. (author), Dugulan, A.I. (author), Huang, B. (author), Liu, J. (author), Maschek, M. (author), van Eijck, L. (author), van Dijk, N.H. (author), Brück, E.H. (author)

The first-order magneto-elastic transition in the Mn–Fe–P–Si alloys can be tailored by vanadium substitution. Alloys with a suitable V substitution provide an excellent magnetocaloric effect with minor hysteresis in low magnetic fields up to 1.2 T. Mössbauer measurements show that the hyperfine field is reduced by V substitution. Neutron...

journal article 2020

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Report of the Double-Molybdate Phase Cs₂Ba(MoO₄)₂ with a Palmierite Structure and Its Thermodynamic Characterization

Smith, A.L. (author), de Zoete, Nathan (author), Rutten, Maikel (author), van Eijck, L. (author), Griveau, Jean Christophe (author), Colineau, Eric (author)

The existence of a novel double-molybdate phase with a palmierite-type structure, Cs2Ba(MoO4)2, is revealed in this work, and its structural properties at room temperature have been characterized in detail using X-ray and neutron diffraction measurements. In addition, its thermal stability and thermal expansion are investigated in the...

journal article 2020

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All-in-one improvement toward Li₆PS₅Br-Based solid electrolytes triggered by compositional tune

Zhang, Zhixia (author), Zhang, Long (author), Yan, Xinlin (author), Wang, Hongqiang (author), Liu, Yanyan (author), Yu, C. (author), Cao, Xiaoting (author), van Eijck, L. (author), Wen, Bin (author)

Sulfide solid electrolytes possess high ionic conductivity and moderate dendrite suppression capability, but rather poor compatibility against oxide cathodes and metallic Li. Here, we report O-doped Li₆PS₅Br as solid electrolyte synthesized by a facile solid-state sintering. Different from other O-incorporated sulfides,...

journal article 2019

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Structural and thermodynamic study of Cs₃Na(MoO₄)₂: Margin to the safe operation of sodium cooled fast reactors

Smith, A.L. (author), Kauric, G.P.T.F. (author), van Eijck, L. (author), Goubitz, K. (author), Clavier, N. (author), Wallez, G. (author), Konings, R. (author)

Neutron diffraction measurements of the double molybdate Cs₃Na(MoO₄)₂ have been performed for the first time in this work and the crystal structure refined using the Rietveld method. The thermal expansion of this trigonal phase, in space group P3¯m1, measured using high temperature X-ray diffraction (XRD),...

journal article 2019

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Tailoring Li6PS5BR ionic conductivity and understanding of its role in cathode mixtures for high performance all-solid-state Li-S batteries

Yu, C. (author), Hageman, J.G. (author), Ganapathy, S. (author), van Eijck, L. (author), Zhang, Long (author), Adair, Keegan R. (author), Sun, Xueliang (author), Wagemaker, M. (author)

The ultrafast ionic conductivity of Li ₆ PS ₅ Br, which is higher than 1 mS cm ^-1 at room temperature, makes it an attractive candidate electrolyte for the all-solid-state Li-S battery. A simple synthesis route with an easy scale up process is critical for practical applications. In this work, the highest room...

journal article 2019

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Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn_1.2-xV_xFe_0.75P_0.5Si_0.5 alloys

Lai, J. (author), Huang, B. (author), Miao, X.F. (author), Nguyên, V.T. (author), You, X. (author), Maschek, M. (author), van Eijck, L. (author), Zeng, D. (author), van Dijk, N.H. (author), Brück, E.H. (author)

Approaching the border of the first order transition and second order transition is significant to optimize the giant magnetocaloric materials performance. The influence of vanadium substitution in the Mn_1.2-xV_xFe_0.75P_0.5Si_0.5 alloys is investigated for annealing temperatures of 1323,...

journal article 2019

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PDFgetN3: atomic pair distribution functions from neutron powder diffraction data using ad hoc corrections

Juhas, Pavol (author), Louwen, Jaap N. (author), van Eijck, L. (author), Vogt, Eelco T.C. (author), Billinge, Simon J.L. (author)

journal article 2018

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In situ high-temperature EXAFS measurements on radioactive and air-sensitive molten salt materials

Smith, A.L. (author), Verleg, M.N. (author), Vlieland, J. (author), de Haas, D.W. (author), Ocadiz flores, J.A. (author), Martin, Philippe (author), Rothe, Jörg (author), Capelli, E. (author), van Eijck, L. (author)

The development at the Delft University of Technology (TU Delft, The Netherlands) of an experimental set-up dedicated to high-temperature in situ EXAFS measurements of radioactive, air-sensitive and corrosive fluoride salts is reported. A detailed description of the sample containment cell, of the furnace design, and of the measurement...

journal article 2018

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Thermodynamic study of Cs3Na(MoO4)2: Determination of the standard enthalpy of formation and standard entropy at 298.15 K

Smith, A.L. (author), Pignié, M.C.F.C.O. (author), van Eijck, L. (author), Griveau, Jean Christophe (author), Colineau, Eric (author), Konings, R. (author)

The enthalpy of formation at 298.15 K and low temperature heat capacity of Cs3Na(MoO4)2 have been measured for the first time in this work using solution calorimetry and thermal-relaxation calorimetry in the temperature range T = (1.9–299.6) K, respectively. The solution calorimetry measurements, performed in 2 M HNO3 solution, have yielded an...

journal article 2018

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Facile Synthesis toward the Optimal Structure-Conductivity Characteristics of the Argyrodite Li₆PS₅Cl Solid-State Electrolyte

Yu, C. (author), Ganapathy, S. (author), Hageman, J.G. (author), van Eijck, L. (author), Van Eck, Ernst R.H. (author), Zhang, Long (author), Schwietert, T.K. (author), Basak, S. (author), Kelder, E.M. (author), Wagemaker, M. (author)

The high Li-ion conductivity of the argyrodite Li₆PS₅Cl makes it a promising solid electrolyte candidate for all-solid-state Li-ion batteries. For future application, it is essential to identify facile synthesis procedures and to relate the synthesis conditions to the solid electrolyte material performance. Here, a...

journal article 2018