Explanipedia

Wrinkling in Sheets with Nonuniform Growth and Bending Rigidity Open

Igor Levin, Sarah L. Keller · 2025

Thin elastic sheets bend easily, leading to mechanical instabilities such as wrinkling. Here, we investigate wrinkles at edges of bi-strips, which consist of two thin sheets, one that swells and one that does not, joined side-by-side. It i…

Measurements and scaling of X-ray total scattering from single crystals Open

Semën Gorfman, M. V. Eremenko, V. Krayzman, Alexeï Bosak, Peter Y. Zavalij , et al. · 2025

We present a measurement protocol and a data reduction workflow for obtaining single-crystal X-ray total-scattering datasets that capture both Bragg-peak and diffuse scattering intensities on an absolute (electrons2/atom) scale. We further…

Emergent topological polarization textures in relaxor ferroelectrics Open

M. V. Eremenko, V. Krayzman, Semën Gorfman, Alexeï Bosak, Helen Y. Playford , et al. · 2025

Relaxor ferroelectrics underpin high-performance actuators and sensors, yet the nature of polar heterogeneities driving their broadband dielectric response remains debated. Using a unified, multimodal structural refinement framework— simul…

Swirling topological textures of polarization in bulk relaxor ferroelectrics Open

M. V. Eremenko, V. Krayzman, Semën Gorfman, Alexeï Bosak, Helen Y. Playford , et al. · 2025

A complete understanding of the mechanisms for dielectric relaxation in relaxor ferroelectrics remains elusive. We used a structural refinement framework that integrates several types of experimental data to identify the nanoscale correlat…

Interlaboratory Study of Flexural Strength in Additively Manufactured Alumina Open

Russell A. Maier, Andrew J. Allen, Brandon Cox, Igor Levin · 2025

Aqueous cold-sintering of Na0.7CoO2: A benign, facile method for the densification of Na-ion compounds Open

Ademola J. Adetona, Igor Levin, Nicola Morley, Oday H. Hussein, Beatia In Siame , et al. · 2024

The properties of the hexagonal P2 sodium cobaltate, Na0.7CoO2 (NCO) phase densified using the conventional and cold sintering methods were investigated, and we demonstrated that the cold sintering method yields NCO with a relative density…

Lattice match between coexisting cubic and tetragonal phases in PMN-PT at the phase transition Open

Ido Biran, Alexeï Bosak, Zuo‐Guang Ye, Igor Levin, Semën Gorfman · 2024

(1−x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) perovskite-like solid solutions are recognized for their outstanding electromechanical properties, which are of technological importance. However, some significant aspects of the crystal structures an…

A combined fit of total scattering and extended x-ray absorption fine structure data for local-structure determination in crystalline materials Open

Thomas Proffen, V. Krayzman, Igor Levin, Matthew G. Tucker · 2024

Reverse Monte Carlo (RMC) refinements of local structure using a simultaneous fit of X-ray/neutron total scattering and extended X-ray absorption fine structure (EXAFS) data were developed to incorporate an explicit treatment of both singl…

Lattice vibrations and energy landscape of the isoelectronic semiconductor series CuBr, ZnSe, GaAs, and Ge: The special case of CuBr and its -level chemistry Open

J. C. Woicik, Eric Cockayne, Eric L. Shirley, Igor Levin, Conan Weiland , et al. · 2023

Here we have examined the lattice vibrations and the energy landscape of the isoelectronic diamond and zincblende semiconductor series CuBr, ZnSe, GaAs, and Ge. Vibrations are found to be an increasing function of ionicity, with the cation…

In situ probing of interfacial roughness and transient phases during ceramic cold sintering process Open

Fan Zhang, Russell A. Maier, Igor Levin, Andrew J. Allen, Jun‐Sang Park , et al. · 2023

Mapping Polar Distortions using Nanobeam Electron Diffraction and a Cepstral Approach Open

Megan E. Holtz, Elliot Padgett, Aaron C. Johnston‐Peck, Igor Levin, David A. Muller , et al. · 2023

Measuring local polar ordering is key to understanding ferroelectricity in thin films, especially for systems with small domains or significant disorder. Scanning nanobeam electron diffraction (NBED) provides an effective local probe of la…

Extended q‐Range X‐Ray Scattering Reveals High‐Resolution Structural Details of Biomacromolecules in Aqueous Solutions Open

Jiahui Chen, Olaf J. Borkiewicz, Alexander Grishaev, Fan Zhang, Mrinal K. Bera , et al. · 2023

We communicate a feasibility study for high‐resolution structural characterization of biomacromolecules in aqueous solution from X‐ray scattering experiments measured over a range of scattering vectors ( q ) that is approximately two order…

In Situ Probing of Interfacial Roughness and Transient Phases During Ceramic Cold Sintering Process Open

Fan Zhang, Russell A. Maier, Igor Levin, Andrew J. Allen, Jun‐Sang Park , et al. · 2023

Research, standards, and data needs for industrialization of ceramic direct ink writing Open

Andrew J. Allen, Igor Levin, Russell A. Maier · 2022

Here, we summarize a panel discussion on the direct ink writing (DIW) of ceramics, organized and moderated by the National Institute of Standards and Technology at the American Ceramic Society's 46th International Conference on Advanced Ce…

New development for neutron total scattering data reduction and analysis Open

Yuanpeng Zhang, Igor Levin, V. Krayzman, Matthew G. Tucker · 2022

Nanoscale-correlated octahedral rotations in Open

Igor Levin, Myung‐Geun Han, Helen Y. Playford, V. Krayzman, Yimei Zhu , et al. · 2021

BaZrO₃ is reportedly one of few perovskites that retains an ideal cubic structure down to zero Kelvin even though its ground state as predicted by first-principles calculations has remained contentious. Here, we combine electron…

Dielectric Relaxation, Local Structure and Lattice Dynamics in Mn-Doped Potassium Tantalate Ceramics Open

Alexander Tkach, A. Almeida, Igor Levin, J. C. Woicik, Paula M. Vilarinho · 2021

Alkaline niobate and tantalate perovskites have attracted attention as polar dielectrics for electronics and telecommunications. Here, we studied the polar behaviour, lattice dynamics, and local structure in conventionally processed K0.985…

Energy storage mechanisms in vacancy-ordered Wadsley–Roth layered niobates Open

Kit McColl, Kent J. Griffith, Rebecca L. Dally, Runze Li, Jason E. Douglas , et al. · 2021

Layered niobates with vacancy-ordered Wadsley–Roth structures were investigated as Li-ion battery anodes. Using operando and ex situ methods and DFT, we identify an intercalation mechanism dominated by Li-diffusion kinetics and layer evolu…

In situ characterization of ceramic cold sintering by small‐angle scattering Open

Andrew J. Allen, Igor Levin, Russell A. Maier, Suzanne E. Witt, Fan Zhang , et al. · 2020

The first in situ characterization of the pore morphology evolution during the cold sintering process (CSP) is presented using small‐angle X‐ray scattering methods. For practical reasons, measurements have been made on a model system, KH 2…

Tuning between Proper and Hybrid-Improper Mechanisms for Polar Behavior in CsLn2Ti2NbO10 Dion-Jacobson Phases Open

Vanessa Cascos, Jennifer Roberts-Watts, Chloe Skingle, Igor Levin, Weiguo Zhang , et al. · 2020

The Dion-Jacobson (DJ) family of perovskite-related materials have recently attracted interest due to their polar structures and properties, resulting from hybrid-improper mechanisms for ferroelectricity in n = 2 systems and from pr…

Materials research & measurement needs for ceramics additive manufacturing Open

Andrew J. Allen, Igor Levin, Suzanne E. Witt · 2020

We report on a recent workshop dedicated to additive manufacturing (AM) of ceramics that was held at the National Institute of Standards and Technology (NIST) in November 2019. This two‐day all‐invited meeting brought together experts from…

Local atomic order and hierarchical polar nanoregions in a classical relaxor ferroelectric Open

M. V. Eremenko, V. Krayzman, Alexeï Bosak, Helen Y. Playford, Karena W. Chapman , et al. · 2019

Time-of-flight neutron total scattering with applied electric fields: Ex situ and in situ studies of ferroelectric materials Open

Tedi‐Marie Usher, Jennifer S. Forrester, Marshall McDonnell, Jöerg C. Neuefeind, Katharine Page , et al. · 2018

Characterizing the structural response of functional materials (e.g., piezoelectrics and ferroelectrics) to electric fields is key for the creation of structure-property relationships. Here, we present a new sample environment and data red…

Synthesis, Structure, and Electrical Properties of the Single Crystal Ba8Cu16As30 Open

Kaya Wei, Artem R. Khabibullin, Dean Hobbis, W. Wong‐Ng, Tieyan Chang , et al. · 2018

Single crystals of clathrate-I Ba₈Cu₁₆As₃₀ have been synthesized and their structure and electronic properties determined using synchrotron-based X-ray diffraction and first-principles calculations. The str…

Field-induced polarization rotation and phase transitions in piezoceramics observed by in situ high-energy x-ray scattering Open

Dong Hou, Tedi‐Marie Usher, Lovro Fulanović, Marko Vrabelj, Mojca Otoničar , et al. · 2018

Changes to the crystal structure of 0.70Pb(Mg_1/3Nb_2/3)O₃–0.30PbTiO₃ (PMN-0.30PT) piezoceramic under application of electric fields at the long-range and local scale are revealed by in situ…

Designing pseudocubic perovskites with enhanced nanoscale polarization Open

Igor Levin, W. Laws, Dawei Wang, Ian M. Reaney · 2017

A crystal-chemical framework has been proposed for the design of pseudocubic perovskites with nanoscale ferroelectric order, and its applicability has been demonstrated using a series of representative solid solutions that combined ferroel…

Coupling of emergent octahedral rotations to polarization in (K,Na)NbO3 ferroelectrics Open

Igor Levin, V. Krayzman, Giannantonio Cibin, Matthew G. Tucker, M. V. Eremenko , et al. · 2017

Electric field dependent local structure of Open

Anton Goetzee-Barral, Tedi‐Marie Usher, Timothy Stevenson, Jacob L. Jones, Igor Levin , et al. · 2017

The in situ x-ray pair-distribution function (PDF) characterization technique has been used to study the behavior of (K_xNa_1–x)_0.5Bi_0.5TiO₃, as a function of electric field. As o…

The role of ceramic and glass science research in meeting societal challenges: Report from an NSF ‐sponsored workshop Open

K. T. Faber, Tewodros Asefa, M. Backhaus‐Ricoult, Richard K. Brow, Julia Y. Chan , et al. · 2017

Under the sponsorship of the U.S. National Science Foundation, a workshop on emerging research opportunities in ceramic and glass science was held in September 2016. Reported here are proceedings of the workshop. The report details eight c…

The role of ceramic and glass science research in meeting societal challenges: Report from an NSF-sponsored workshop Open

K. T. Faber, Tewodros Asefa, M. Backhaus‐Ricoult, Richard K. Brow, Julia Y. Chan , et al. · 2017

Under the sponsorship of the U.S. National Science Foundation, a workshop on emerging research opportunities in ceramic and glass science was held in September 2016. Reported here are proceedings of the workshop. The report details eight c…

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