For successful nuclear nonproliferation initiatives, authorities must be able to detect and characterize radioactive sources—but how can they do so if the radioactive material was removed before they arrived? Researchers at North Carolina State University developed a technique that allows retrospective characterization of radioactive sources.
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Performing microscale experiments at ultrahigh temperatures is difficult because the high heat can destroy the testing mechanisms. Researchers demonstrated a new method, which combines targeted laser heating and transmission electron microscopy, that may overcome this problem.
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Roughness plays a big role in determining friction and adhesion between materials, which greatly affects processes in both scientific and industrial fields. So understanding roughness can help control these factors. Researchers led by the University of Freiburg investigate the origins behind a particular characteristic of roughness—self-affinity.
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Just as car models build upon the successes and failures of the previous generation, so too do journal articles. See how such a process takes place through the comparison of two JACerS articles from 1981 and 2019 on indentation crack testing.
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Eutectic materials self-assemble to form a cohesive structure, but only a limited set of structures emerge. Researchers from the University of Illinois at Urbana-Champaign and the University of Michigan found they could achieve new microstructures through templating.
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Researchers have struggled to create an accurate phase diagram of carbon for over 100 years. Now, two researchers from Russia explored melting of graphite and graphene and confirmed some previous hypotheses—and revealed graphene “melting” is in fact sublimation.
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With over 50 standards on test methods, practices, guides, terminology, and specification for advanced ceramics under its jurisdiction, Committee C28 is proud to hold its first meetings of the year in conjunction with ACerS in January 2020.
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An oxide glass that can plastically deform under unconfined loading conditions would be a big asset in potential applications. An international team of researchers found alumina glass films exhibit such an ability.
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Hafnium oxide-based ferroelectrics are promising materials for nonvolatile memory devices, as they are compatible with modern semiconductor technologies. Researchers led by the Moscow Institute of Physics and Technology came up with a unique method to better characterize these materials.
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When grain sizes in ceramics become critically small, ceramics can appear to soften. Researchers led by the University of California, Davis, show this false impression is due to an extensive network of nanocracks caused by increased grain boundary energy.
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