{"id":185,"date":"2018-07-11T00:00:30","date_gmt":"2018-07-11T04:00:30","guid":{"rendered":"http:\/\/sites.nd.edu\/kmanukyan\/?page_id=185"},"modified":"2023-07-25T23:11:15","modified_gmt":"2023-07-26T03:11:15","slug":"news","status":"publish","type":"page","link":"https:\/\/sites.nd.edu\/kmanukyan\/news\/","title":{"rendered":"News"},"content":{"rendered":"

July 25, 2023: <\/span>DEUTSCHLANDRADIO <\/span><\/i>(DLR; Radio Germany)\u00a0<\/span><\/em><\/span>highlights our work published in <\/span><\/em>PNAS<\/a><\/span><\/h3>\n

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Benjamin Franklin: Wie versuchte er, Geld f\u00e4lschungssicher zu machen?<\/mark><\/a><\/p>\n\n\n\n

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July 21, 2023: <\/span>NATURE highlights our work<\/span><\/em><\/h3>\n\n\n
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Ben Franklin: Founding Father of Anti-Counterfeiting Techniques<\/mark><\/a><\/p>\n<\/div><\/div>\n\n\n

July 17, 2023: <\/span>Article published in<\/em> PNAS<\/a><\/span><\/h3>\n
We are excited to announce the publication of our paper, “Multiscale Analysis of Benjamin Franklin’s Innovations in American Paper Money<\/a>,” in the Proceedings of the National Academy of Sciences (PNAS). This research delves into Benjamin Franklin’s pioneering contributions to American paper money, offering fresh insights through a comprehensive multiscale approach. The work has been covered by various national and international news outlets, including The New York Times, The Associated Press, and The Wall Street Journal.<\/span><\/em><\/strong><\/h5>\n

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What Benjamin Franklin Learned While Fighting Counterfeiters<\/a><\/p>\n<\/div><\/div>\n\n\n\n

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How Benjamin Franklin Helped Foil Early American Money Counterfeiters<\/a><\/p>\n<\/div><\/div>\n\n\n\n

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How Benjamin Franklin laid groundwork for the US dollar by foiling early counterfeiters<\/a><\/p>\n<\/div><\/div>\n\n\n\n

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Benjamin Franklin Developed a Money Invention We Didn’t Know About<\/a><\/p>\n<\/div><\/div>\n\n\n\n

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How Benjamin Franklin fought money counterfeiters<\/a><\/p>\n<\/div><\/div>\n\n\n\n

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All about the Benjamins: Researchers decipher the secrets of Benjamin Franklin\u2019s paper money<\/a><\/a><\/p>\n<\/div><\/div>\n\n\n\n

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December 6, 2022:<\/span> Manukyan receives Defense University Research Instrumentation Program (DURIP) award from Department of Defense<\/a><\/span><\/h3>\n

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February 16, 2021:<\/span> Researchers to prepare new varieties of metals under U.S. Army research contract<\/span><\/a><\/span><\/h3>\n\n\n

A \u201cstable\u201d material by physics standards means that it retains its properties unless drastic measures are taken to change them. Metastable materials, on the other hand, are materials that transform into more stable forms under the right conditions \u2014 but sometimes these materials exhibit more desirable traits than their stable counterparts.<\/p>\n\n\n\n

The Department of Army has awarded a three-year grant to researchers at the University of Notre Dame to develop techniques to prepare some metastable metals for use in extreme conditions. The first metal being examined is a type of metastable nickel, but researchers will also investigate others, such as tungsten or cobalt, said Khachatur Manukyan,<\/a> research assistant professor in the Department of Physics and affiliated member of ND Energy.<\/a><\/p>\n\n\n\n

Under usual conditions, nickel is stable in the form of a cubic crystalline structure. But scientists have long known about a metastable variety, called hexagonal close-packed (HCP) nickel, in which the atoms are arranged differently. Some have claimed to have already created this material in the lab. However, others are skeptical because the processes can also create nickel carbide, which is difficult to discern from HCP nickel, according to Manukyan, the lead researcher on the project that also includes Tengfei Luo, professor of aerospace and mechanical engineering, and Alexander Mukasyan, research professor of chemical engineering.<\/p>\n\n\n\n

\u201cThere was a debate in the scientific literature and because of this, nobody really knows how this material behaves,\u201d he said. Manukyan and collaborators will try to prepare this form of nickel from an amorphous state (where the atoms have no ordered arrangements), and then allow it  to crystallize using processing methods. If the material is cooled quickly, researchers predict the nickel produced will be the metastable type.<\/p>\n\n\n\n

\u201cIf successful, we\u2019ll see how we can stabilize the materials,\u201d he said, citing the most famous example of a metastable material \u2013 a diamond. Diamond, made from carbon, is metastable, while graphite, also made from carbon, is considered stable under typical conditions. And yet, diamonds have many properties that are superior to those of graphite.<\/p>\n\n\n\n

\u201cLike diamond, maybe these new metallic phases we develop will also have exciting properties that we all know, and that will drive the application of these new materials,\u201d Manukyan said.<\/p>\n\n\n\n

The Army is supporting the process with about a $460,000 grant over three years because of potential uses which could span from structural engineering materials to quantum computing.<\/p>\n\n\n\n

In addition to the team of Manukyan, Luo, and Mukasyan, two graduate students \u2013 one who will tackle theoretical materials science, and the other who will look at the experimental aspects, will assist. Manukyan also plans to get undergraduates involved as well.<\/p>\n\n\n\n

The work will take place in Notre Dame\u2019s nuclear science laboratory of the Institute for Structure and Nuclear Astrophysics.<\/a><\/p>\n\n\n\n

Originally published by Deanna Csomo McCool at science.nd.edu<\/a> on February 12, 2021.<\/p>\n\n\n\n

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September 14, 2020:<\/span> We published a book that summarizing scientific methods used to characterize cultural heritage objects<\/span><\/a><\/span><\/h3>\n\n\n

Experimental nuclear science faculty have published a book that summarizes scientific methods that are currently used to characterize objects of cultural heritage and archaeological artifacts. Authored by Friemann Professor of Physics Michael Wiescher<\/a> and Assistant Research Professor Khachatur Manukyan<\/a>, the book covers spectroscopy, isotope analysis techniques, imaging techniques, and archeological dating.<\/p>\n\n\n\n

The characterization of cultural heritage objects becomes increasingly important for conservation, restoration, dating, and authentication purposes. The use of scientific methods in archaeometry and conservation science has led to a significant broadening of the field. Scientific analysis of these objects is a challenging task due to their complex composition, artistic and historical values requiring the use of minimally invasive and nondestructive analytical procedures.<\/p>\n\n\n\n

Published by Morgan & Claypool Publishers, it is available in softcover, hardcover, and ebook. http:\/\/store.morganclaypool.com<\/a><\/p>\n\n\n\n

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March 02, 2020: <\/span>Physics faculty and students participate in the 2020 Stewardship Science Academic Programs Symposium<\/a><\/span><\/h3>\n

Freimann Professor Ani Aprahamian<\/span><\/a>, Research Assistant Professor Khachatur Manukyan<\/a>,<\/span> and graduate students Stefania Dede, Ashabari Majumdar, Jordan Roach, and Jacob Galden participated in U.S. Department of Energy\u2019s National Nuclear Security Administration (NNSA) 2020 Stewardship Science Academic Programs (SSAP) Symposium held February 26-27, 2020 in Washington, D.C. Aprahamian presented the progress of last year\u2019s research activities of the \u201cA Novel Technique for the Production of Robust Actinide Targets\u201d grant funded by NNSA. Students presented their research results as poster presentations. This project brings together expertise from material science, radiochemistry, and nuclear science. The aim of the project is to develop new ways to prepare thin actinide targets for research in nuclear science and stockpile stewardship. This grant provides exciting opportunities for carrying out cutting-edge research while educating the next generation of STEM scientists capable of exploiting the developed techniques. This project expands the scope with novel techniques and the training of new personnel that can satisfy national needs at both Los Alamos and Lawrence Livermore National Laboratories. The project is also featured in the 2020 Stewardship Science Academic Programs Annual Report Journal (DOE\/NE-0109)<\/a>.<\/span><\/p>\n

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September 20, 2019:<\/span> XV International Symposium on Self-Propagating High-Temperature Synthesis, Moscow, Russia<\/span><\/h3>\n

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August 28, 2019: <\/span>Nuclear Science Laboratory researchers publish an article on the surface manipulation techniques of Roman denarii<\/span><\/h3>\n

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A team of researchers and undergraduate students at Nuclear Science Laboratory, Department of Physics at Notre Dame, published an article in the Applied Surface Science<\/em> journal on the characterization of a set of Roman denarii, ranging from 136\u202fBCE to 240\u202fCE. The work presents the results of macro, micro, and nanoscale surface characterization of coins using several different X-ray based spectroscopic and electron microscopy methods. This enabled the surface, the subsurface, and volume composition of these coins to be probed to better understand their production techniques, surface treatment methods, and corrosion patterns. The results also provide evidence that a particular surface treatment method, amalgam silvering, had been used to make authentic Roman coins as early as the third century CE.<\/p>\n

Khachatur Manukyan, Cecilia Fasano, Ashabari Majumdar, Graham F. Peaslee, Mark Raddell, Edward Stech, Michael Wiescher, Applied Surface Science 493, 2019, 818-828, https:\/\/doi.org\/10.1016\/j.apsusc.2019.06.296<\/a><\/span><\/p>\n

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June 20, 2019:<\/span> Invited talk at the<\/span> International Conference on Nuclear and Radiation Physics and Materials<\/span> (NRPM 2019)<\/a> June 17-20, 2019 A. Alikhanyan National Science Laboratory and Yerevan State University, Yerevan, Armenia<\/span><\/h3>\n