nist-gov/www.nist.gov/topic-terms/composition-and-structure
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<h2 class="nist-block__title"> <div class="string">News and Updates</div>
</h2>
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<article
about="/news-events/news/2025/01/nist-database-can-help-increase-recycling-textiles-and-clothing" typeof="schema:Article" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/news-events/news/2025/01/nist-database-can-help-increase-recycling-textiles-and-clothing" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2025/01/03/_3DP6922.jpg?itok=x-47xRLq" width="100" height="66" alt="A scientist wearing safety glasses stands in front of a monitor in her lab." typeof="foaf:Image" />
</a>
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<header>
<h3 class="nist-teaser__title"><a href="/news-events/news/2025/01/nist-database-can-help-increase-recycling-textiles-and-clothing"><span property="schema:name">NIST Database Can Help Increase Recycling of Textiles and Clothing</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2025-01-07T12:00:00Z">January 7, 2025</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div property="schema:text" class="text-with-summary"> Picture this: You have a bag of heavily used clothes that can no longer be donated taking up space in your closet, so you drop it off at your local recycling
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</div>
</div>
</article>
</div>
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<article
about="/news-events/news/2024/10/nist-scientists-use-dna-origami-chip-detect-biomolecules" typeof="schema:Article" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/news-events/news/2024/10/nist-scientists-use-dna-origami-chip-detect-biomolecules" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2024/10/17/thumb%20%283%29.png?itok=QO61bjoF" width="100" height="100" alt="DNA hinge thumbnail" typeof="foaf:Image" />
</a>
</div>
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<header>
<h3 class="nist-teaser__title"><a href="/news-events/news/2024/10/nist-scientists-use-dna-origami-chip-detect-biomolecules"><span property="schema:name">NIST Scientists Use DNA Origami on a Chip to Detect Biomolecules</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2024-10-17T12:00:00Z">October 17, 2024</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div property="schema:text" class="text-with-summary"> Using strands of DNA to create miniature hinges that pop open or shut when binding to specific molecules, researchers at the National Institute of Standards and
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/news-events/news/2024/09/mmsd-staff-release-version-52-srd31-phase-equilibria-diagrams-ped" typeof="schema:Article" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/news-events/news/2024/09/mmsd-staff-release-version-52-srd31-phase-equilibria-diagrams-ped" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2024/08/13/Picture9.png?itok=x5E9Yvuf" width="100" height="75" alt="pedslashfullres" typeof="foaf:Image" />
</a>
</div>
</div>
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<header>
<h3 class="nist-teaser__title"><a href="/news-events/news/2024/09/mmsd-staff-release-version-52-srd31-phase-equilibria-diagrams-ped"><span property="schema:name">MMSD Staff Release Version 5.2 of SRD31, Phase Equilibria Diagrams (PED)</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2024-09-25T12:00:00Z">September 25, 2024</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div property="schema:text" class="text-with-summary"> The third Series-5 release of SRD31 is now commercially available and provides users with processing information for more than 200 material systems not
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<h2 class="nist-block__title"> <div class="string">Events</div>
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<div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-a9fe32e7bd9a0a85090c9b7a54c03e9903f72aa437310ceaa6f69d38e3535fbf">
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<article
about="/news-events/events/2025/03/workshop-advancing-uv-germicidal-efficacy-measurement-metrology-standards" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/news-events/events/2025/03/workshop-advancing-uv-germicidal-efficacy-measurement-metrology-standards" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2025/01/16/NEW%20UV%20Germicidal%20Img.png?itok=jsgg-PUs" width="100" height="84" alt="Abstract blue image Advancing UV Germicidal Efficacy Measurement: Metrology, Standards, Data and Protocols " typeof="foaf:Image" />
</a>
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<header>
<h3 class="nist-teaser__title"><a href="/news-events/events/2025/03/workshop-advancing-uv-germicidal-efficacy-measurement-metrology-standards"><span>Workshop: Advancing UV Germicidal Efficacy Measurement: Metrology, Standards, Data and Protocols</span>
</a></h3>
<div class="nist-teaser__date">
<div class="smartdate">Tue, Mar 18 - Thu, Mar 20 2025</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> The U.S. Department of Commerce, National Institute of Standards and Technology (NIST) and the International Ultraviolet
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<h2 class="nist-block__title"> <div class="string">Projects and Programs</div>
</h2>
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about="/programs-projects/multifunctional-3d-printable-polymer-metal-composites" class="nist-teaser"
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<div class="entity-reference"> <a href="/programs-projects/multifunctional-3d-printable-polymer-metal-composites" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2024/09/28/Multifunctional%20AM%20Project%20Page.jpg?itok=ly1a-0JF" width="87" height="100" alt="Multifunctional AM Project Page" typeof="foaf:Image" />
</a>
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<header>
<h3 class="nist-teaser__title"><a href="/programs-projects/multifunctional-3d-printable-polymer-metal-composites"><span>Multifunctional 3D Printable Polymer-Metal Composites</span>
</a></h3>
<div class="nist-teaser__type">
<div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> Recent advances in additive manufacturing (AM) have positioned metals and polymers as two key materials. Typically, AM of these two materials involves incompatible methods and conditions. The novel multifunctional polymer-metal composites in this project incorporate low-melting alloys with
</div>
</div>
</div>
</article>
</div>
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about="/programs-projects/x-ray-testbed-breakthrough-catalyst-measurements" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/programs-projects/x-ray-testbed-breakthrough-catalyst-measurements" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2023/05/02/Screenshot%202023-05-02%20at%201.20.06%20PM.png?itok=STPS2zGf" width="100" height="94" alt="Catalyst Testbed" typeof="foaf:Image" />
</a>
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<header>
<h3 class="nist-teaser__title"><a href="/programs-projects/x-ray-testbed-breakthrough-catalyst-measurements"><span>X-ray Testbed for Breakthrough Catalyst Measurements</span>
</a></h3>
<div class="nist-teaser__type">
<div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> Interested in collaborating? See below What does this project do for industry? Current measurement techniques are unable to follow the reaction pathways during catalysis and are limited to observing only the end products or looking at catalysts outside of realistic reaction conditions. Our new
</div>
</div>
</div>
</article>
</div>
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<article
about="/programs-projects/microstructure-property-tools-structure-property-design" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/programs-projects/microstructure-property-tools-structure-property-design"><span>Microstructure-Property Tools for Structure-Property Design</span>
</a></h3>
<div class="nist-teaser__type">
<div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> Microstructure-level Structure-Property Tools OOF: Finite Element Analysis of Microstructures enables materials scientists calculate macroscopic properties from images of real or simulated microstructures. It reads an image, assigns material properties to features in the image, and conducts virtual
</div>
</div>
</div>
</article>
</div>
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<article
about="/programs-projects/ncnr-dac-and-ccus-efforts" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/programs-projects/ncnr-dac-and-ccus-efforts"><span>NCNR DAC and CCUS efforts</span>
</a></h3>
<div class="nist-teaser__type">
<div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> Objectives To advance US competitiveness in Direct Air Capture (DAC) and Carbon Capture, Usage, and Sequestration (CCUS) Use advanced neutron scattering techniques to understand the adsorption process for the most promising materials for adsorption-based carbon capture and provide avenues to
</div>
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<div class="paragraph paragraph--type--dynamic-content-list-topic paragraph--view-mode--default">
<h2 class="nist-block__title"> <div class="string">Publications</div>
</h2>
<div
class="nist-block "
>
<div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-d79b7f51e35211e6db1f39856646f5520b37b6b7d639c0f5fb1af07f74c7a72b">
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<article
about="/publications/three-dimensional-nucleation-and-growth-deformation-twins-magnesium" class="nist-teaser"
>
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<header>
<h3 class="nist-teaser__title"><a href="/publications/three-dimensional-nucleation-and-growth-deformation-twins-magnesium"><span>Three-dimensional nucleation and growth of deformation twins in magnesium</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2024-12-21T12:00:00Z">December 21, 2024</time>
</div>
</div>
<div class="nist-teaser__type">
<div class="nist-field nist-field--label-inline text-long">
<div class="nist-field__label">Author(s)</div>
<div class="nist-field__item">Sangwon Lee, Michael Pilipchuk, Can Yildirim, Duncan Greeley, Qianying Shi, Tracy Berman, <span class="nist-author">Adam Creuziger</span>, <span class="nist-author">Evan Rust</span>, Carsten Detlefs, Veera Sundararaghavan, John Allison, Ashley Bucsek</div>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> At two-thirds the weight of aluminum, magnesium alloys have the potential to significantly reduce the fuel consumption of transportation vehicles. These
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/publications/three-dimensional-nature-1-anomalous-hall-conductivity-ymn6sn6-xgax-x-055" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/publications/three-dimensional-nature-1-anomalous-hall-conductivity-ymn6sn6-xgax-x-055"><span>Three-dimensional nature 1 of anomalous Hall conductivity in YMn6Sn6xGax, x ≈ 0.55</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2024-11-19T12:00:00Z">November 19, 2024</time>
</div>
</div>
<div class="nist-teaser__type">
<div class="nist-field nist-field--label-inline text-long">
<div class="nist-field__label">Author(s)</div>
<div class="nist-field__item"><span class="nist-author">Albert Davydov</span>, Hari "Bhandari ", Zhenhua Ning, Po-Hao Chang, Peter Siegfried, Resham Regmi, Mohamed El Gazzah, Allen Oliver, Liqin Ke, Igor Mazin, Nirmal Ghimire</div>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> The unique connectivity of kagome lattices gives rise to topological properties such as flat bands and Dirac cones. When combined with ferromagnetism and with
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/publications/mechanical-metallurgy-columbia-gas-x100-experimental-pipe" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/publications/mechanical-metallurgy-columbia-gas-x100-experimental-pipe"><span>Mechanical Metallurgy on Columbia Gas X100 Experimental Pipe</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2024-08-28T12:00:00Z">August 28, 2024</time>
</div>
</div>
<div class="nist-teaser__type">
<div class="nist-field nist-field--label-inline text-long">
<div class="nist-field__label">Author(s)</div>
<div class="nist-field__item"><span class="nist-author">Dash Weeks</span>, <span class="nist-author">Ryan White</span>, <span class="nist-author">Jake Benzing</span>, <span class="nist-author">Enrico Lucon</span>, <span class="nist-author">Nicholas Derimow</span>, Ashley Kroon, Robert Smith</div>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> This study evaluates the material properties of an X100 pipeline steel extracted from an experimental transmission pipeline section placed into service in the
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/publications/considerations-using-calibration-curves-infer-oxide-stoichiometry-atom-probe-tomography" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/publications/considerations-using-calibration-curves-infer-oxide-stoichiometry-atom-probe-tomography"><span>Considerations for using Calibration Curves to Infer Oxide Stoichiometry from Atom Probe Tomography Data</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2024-08-01T12:00:00Z">August 1, 2024</time>
</div>
</div>
<div class="nist-teaser__type">
<div class="nist-field nist-field--label-inline text-long">
<div class="nist-field__label">Author(s)</div>
<div class="nist-field__item"><span class="nist-author">Ann Chiaramonti Debay</span>, Daniel Schreiber, Karen Kruska, Kayla Yano</div>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> Atom probe tomography (APT) is a powerful analytical technique whose strengths lie in its combination of three-dimensional reconstructions, (sub)nanometer
</div>
</div>
</div>
</article>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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<h2 class="nist-block__title"> <div class="string">Software</div>
</h2>
<div
class="nist-block "
>
<div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-b652ad5e83af131a951ccb2eb81994b1943fe8f9cdd1bbaae6a01fa3cdc195ad">
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<article
about="/services-resources/software/nist-dtsa-ii" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/services-resources/software/nist-dtsa-ii" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2018/03/20/dtsa-ii_screenshot.png?itok=jS6x9QyR" width="100" height="85" alt="DTSA II " typeof="foaf:Image" />
</a>
</div>
</div>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/services-resources/software/nist-dtsa-ii"><span>NIST DTSA-II</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2023-03-10T12:00:00Z">March 10, 2023</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> NIST DTSA-II builds on the best available algorithms in the literature to simulate, quantify and plan energy dispersive x-ray analysis measurements.
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/services-resources/software/gsasuse-bayesian-statistics-approach-accounting-unknown-systematic" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/services-resources/software/gsasuse-bayesian-statistics-approach-accounting-unknown-systematic"><span>GSAS_USE (Bayesian Statistics Approach to Accounting for Unknown Systematic Errors)</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2017-03-01T12:00:00Z">March 1, 2017</time>
- <time datetime="2017-10-04T12:00:00Z">October 4, 2017</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> GSAS_USE addresses the effects of systematic errors in Rietveld refinements. The errors are categorized into multiplicative, additive, and peak-shape types
</div>
</div>
</div>
</article>
</div>
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<article
about="/services-resources/software/nanop" class="nist-teaser"
>
<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/services-resources/software/nanop"><span>NANOP</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2017-03-01T12:00:00Z">March 1, 2017</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> This software package implements functions to simulate spherical, ellipsoid and cubic polyatomic nanoparticles with arbitrary crystal structures and to
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/services-resources/software/bbest-bayesian-estimation-incoherent-neutron-scattering-backgrounds" class="nist-teaser"
>
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<header>
<h3 class="nist-teaser__title"><a href="/services-resources/software/bbest-bayesian-estimation-incoherent-neutron-scattering-backgrounds"><span>BBEST Bayesian Estimation of Incoherent Neutron Scattering Backgrounds</span>
</a></h3>
<div class="nist-teaser__date">
<div class="daterange"><time datetime="2017-03-01T12:00:00Z">March 1, 2017</time>
</div>
</div>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> We implemented a Bayesian-statistics approach for subtraction of incoherent scattering from neutron total-scattering data. In this approach, the estimated
</div>
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<h2 class="nist-block__title"> <div class="string">Tools and Instruments</div>
</h2>
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class="nist-block "
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<div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-1e61d1e8310f565e2dae275741ebdfbad382fee0ae6fc01adc18aa6425f07b3e">
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about="/laboratories/tools-instruments/nist-ptir-instrumentation-and-capabilities" class="nist-teaser"
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<header>
<h3 class="nist-teaser__title"><a href="/laboratories/tools-instruments/nist-ptir-instrumentation-and-capabilities"><span>NIST PTIR Instrumentation and Capabilities</span>
</a></h3>
</header>
<div class="nist-teaser__content">
<div class="text-with-summary"> Photothermal induced resonance (PTIR) combines the spatial resolution of atomic force microscopy (AFM) with the specificity of absorption spectroscopy
</div>
</div>
</div>
</article>
</div>
<div>
<article
about="/laboratories/tools-instruments/atom-probe-tomography-leap-4000x-sihr-local-electrode-atom-probe" class="nist-teaser"
>
<div class="nist-teaser__image">
<div class="entity-reference"> <a href="/laboratories/tools-instruments/atom-probe-tomography-leap-4000x-sihr-local-electrode-atom-probe" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/mml/mmsd/microanalysis/atomprobe1_1.jpg?itok=BeBF3Tau" width="100" height="81" alt="atomprobe1" typeof="foaf:Image" />
</a>
</div>
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<div class="nist-teaser__content-wrapper">
<header>
<h3 class="nist-teaser__title"><a href="/laboratories/tools-instruments/atom-probe-tomography-leap-4000x-sihr-local-electrode-atom-probe"><span>Atom Probe Tomography (LEAP 4000X Si/HR Local Electrode Atom Probe)</span>
</a></h3>
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<div class="text-with-summary"> LEAP 4000X Si/HR Imaging time-of-flight mass spectrometer and field ion microscope. Can deliver 3-D, isotopically- and chemically- resolved images Sub-nanometer
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<h3 class="nist-teaser__title"><a href="/laboratories/tools-instruments/hysitron-pi-85-picoindentor"><span>Hysitron PI-85 Picoindentor</span>
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<div class="text-with-summary"> This in-situ indentation system can be integrated into electron microscopes as well as being run in other unusual setups. With a load capacity of 150 mN, this
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<div class="text-with-summary"> A TESCAN MIRA3 Schottky field-emission scanning electron microscope with 4 30 mm 2 silicon x-ray drift detectors which has been automated for particle and
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<div class="text-long"> For fundamental insight into the chain conformation, structure, phase separation, and interfaces of polyelectrolytes enabled by light and
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<h3 class="nist-teaser__title"><a href="/awards/mark-stoudt-named-asm-fellow"><span>Mark Stoudt Named ASM Fellow</span>
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<div class="text-long"> For outstanding contributions to the scientific understanding of the structure-property relationships of additively manufactured alloys and
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<div class="text-long"> Dr. Jan Obrzut is recognized for his essential contributions to support the development of graphene standardization in IEC/TC 113. As the
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