Plastic Deformation Behavior of Bulk Metallic Glass Composite Containing Spherical Ductile Crystalline Precipitates

Mechanical alloying (MA), super cooling process, etc. have been used to prepare amorphous phases, metastable solid solutions, nanocrystals, and so on. It is important to consolidate these powders for evaluating the physical properties, and for applications. On the other hand, shock compression can be used as an effective consolidation method for metastable material powders without recrystallization or decomposition. We had prepared metastable transition-metal system bulk alloys and compounds (Fe-Co, Fe-Cu, Fe-W, Co-Cu, Sm-Fe-N systems, etc) by using MA and shock compression. The Fe-Cu and Co-Cu metastable solid solutions showed a fit curve to the Slater-Pauling one. The Co-Cu metastable solid solution bulk alloy showed a magneto-resistance. The Fe-Co fine-grained bulk alloys show the higher coeicivity than that of molten alloy. In this paper, the preparation and magnetic properties of the metastable alloys (Fe-Co, Fe-Cu, Co-Cu systems) are reviewed, and the applications to materials science and engineering are discussed.

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Metastable Transition-Metal System Bulk Alloys Prepared by MA and Shock Compression

THERMEC 2006 - Materials Science Forum ◽

10.4028/0-87849-428-6.1937 ◽

2007 ◽

pp. 1937-1942

Author(s):

Tsutomu Mashimo ◽

Xu Fan ◽

Xin Sheng Huang

Keyword(s):

Transition Metal ◽

Shock Compression ◽

Metal System ◽

Transition Metal System ◽

Metastable Transition ◽

Bulk Alloys

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Spinodal Decomposition M B Bever (Ed.), Encyclopedia of Materials Science and Engineering, Pergamon Press, Oxford, 1986. D R de Fontaine, Clustering Effects in Solid Solutions in Treatise on Solid State Chemistry, N B Hannay (Ed.), Vol. 5, Plenum Press, New York/London, 1975. V Raghavan and M Cohen, Solid-State Phase Transformations in Treatise on Solid State Chemistry, N B Hannay (Ed.), Vol. 5, Plenum Press, New York/London, 1975. C M Wayman, Solid-State Phase Transformations, Ann. Rev. Mat. Sci., 1, 185, 1971.

IUPAC Standards Online ◽

10.1515/iupac.66.0132 ◽

2016 ◽

Author(s):

J. B. Clark ◽

J. W. Hastie ◽

L. H. E. Kihlborg ◽

R. Metselaar ◽

M. M. Thackeray

Keyword(s):

New York ◽

Solid State ◽

Phase Transformations ◽

Spinodal Decomposition ◽

Solid Solutions ◽

Materials Science ◽

Solid State Chemistry ◽

Science And Engineering ◽

Materials Science And Engineering

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Особенности релаксации сдвиговой упругости металлических стекол

Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases ◽

10.17308/kcmf.2019.21/719 ◽

2019 ◽

Vol 21 (1) ◽

pp. 84-92

Author(s):

Yuriy P. Mitrofanov

Keyword(s):

New York ◽

Materials Science ◽

Physical Review ◽

Applied Physics ◽

Electromagnetic Excitation ◽

Science And Engineering ◽

Modern Physics ◽

Materials Research ◽

Materials Science And Engineering ◽

Alloys And Compounds

Работа направлена на установление закономерностей изменения сдвиговой упругости, возникающих при структурной релаксации металлических стекол на основе Pd и Zr. Измерения модуля сдвига выполнялись на частотах около 500 кГц. Несмотря на отличия в физических свойствах исследованных металлических стекол (химический состав, стеклообразующая способность, температуры стеклования и др.), наблюдаются определенные общие закономерности релаксации их сдвиговой упругости при термообработке. ИСТОЧНИК ФИНАНСИРОВАНИЯ Работа поддержана грантом Минобрнауки РФ № 3.1310.2017/4.6. БЛАГОДАРНОСТИ Автор выражает благодарность проф. В.А. Хонику за обсуждение статьи ЛИТЕРАТУРА Dyre С. Reviews of Modern Physics, 2006, vol. 78, pp. 953–972. https://doi.org/10.1103/revmodphys.78.953 Dyre J. C., Olsen N. B., Christensen T. Physical Review B, 1996, vol. 53, pp. 2171–2174. https://doi.org/10.1103/physrevb.53.2171 Khonik V. A., Mitrofanov Yu. P., Lyakhov S. A., Vasiliev A. N., Khonik S. V., Khoviv D. A. Physical Review B, 2009, vol. 79, pp. 132204-1–132204-4. https://doi.org/10.1103/physrevb.79.132204 Chen H. S. Reports on Progress in Physics, 1980, vol. 43, pp. 353–432. https://doi.org/10.1088/0034-4885/43/4/001 Hirao M., Ogi H. EMATS for Science and Industry: Noncontacting Ultrasonic Measurements. New-York, Springer, 2003, p. 372. Vasil'ev A. N., Buchel'nikov V. D., Gurevich M. I., Kaganov M. I., Gajdukov Ju. P. Electromagnetic Excitation of Sound in Metals. Cheljabinsk, Izd-vo JuUrGU Publ., 2001, 339 p. Wang W. H. Progress in Materials Science, 2012, vol. 57, pp. 487–656. https://doi.org/10.1016/j.pmatsci.2011.07.001 Watanabe L. Y., Roberts S. N., Baca N., Wiest A., Garrett S. J., Conner R. D. Materials Science and Engineering: C, 2013, vol. 33, pp. 4021–4025. https://doi.org/10.1016/j.msec.2013.05.044 Wang D. P., Zhao D. Q., Ding D. W., Bai H. Y., Wang W. H. Journal of Applied Physics, 2014, vol. 115, pp. 123507-1–123507-4. https://doi.org/10.1063/1.4869548 Zhang Z., Keppens V., Liaw P. K., Yokoyama Y. Journal of Materials Research, 2006, vol. 22, pp. 364–367. https://doi.org/10.1557/jmr.2007.0040 Khonik V. A. Izvestija Akademii Nauk. Serija fizicheskaja [Bulletin of the Russian Academy of Sciences: Physics], 2001, vol. 65, no. 10, pp. 1465–1471. (in Russ.) Shtremel' M. A. The Strength of the Alloys. Part Defects of the Lattice. Moscow, MISIS Publ., 1999, 384 p. (in Russ.) Gordon C. A., Granato A. V. Materials Science and Engineering A, 2004, vol. 370, pp. 83–87. https://doi.org/10.1016/j.msea.2003.08.077 Shen T. D., Schwarz R. B. Applied Physics Letters, 2006, vol. 88, pp. 091903-1–091903-3. https://doi.org/10.1063/1.2172160 Tsyplakov A. N., Mitrofanov Yu. P., Khonik V. A., Kobelev N. P., Kaloyan A. A. Journal of Alloys and Compounds, 2015, vol. 618, pp. 449–454. https://doi.org/10.1016/j.jallcom.2014.08.198 Mitrofanov Y. P., Wang D. P., Makarov A. S., Wang W. H., Khonik V. A. // Scientific Reports, 2016, vol. 6, p. 23026-1–23026-6. https://doi.org/10.1038/srep23026 Afonin G. V., Mitrofanov Yu. P., Makarov A. S., Kobelev N. P., Khonik V. A. // Journal of Non-Crystalline Solids, 2017, vol. 475, pp. 48–52. https://doi.org/10.1016/j.jnoncrysol.2017.08.029

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Outreach Opportunities Using the Instructional SEM at Iowa State University

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100164520 ◽

1996 ◽

Vol 54 ◽

pp. 412-413

Author(s):

L. S. Chumbley ◽

M. Meyer ◽

K. Fredrickson ◽

F.C. Laabs

Keyword(s):

Materials Science ◽

State University ◽

Digital Cameras ◽

Audio Signals ◽

Iowa State University ◽

Cornell University ◽

Sem Image ◽

Local Schools ◽

Materials Science And Engineering ◽

Video And Audio

The development of a scanning electron microscope (SEM) suitable for instructional purposes has created a large number of outreach opportunities for the Materials Science and Engineering (MSE) Department at Iowa State University. Several collaborative efforts are presently underway with local schools and the Department of Curriculum and Instruction (C&I) at ISU to bring SEM technology into the classroom in a near live-time, interactive manner. The SEM laboratory is shown in Figure 1.Interactions between the laboratory and the classroom use inexpensive digital cameras and shareware called CU-SeeMe, Figure 2. Developed by Cornell University and available over the internet, CUSeeMe provides inexpensive video conferencing capabilities. The software allows video and audio signals from Quikcam™ cameras to be sent and received between computers. A reflector site has been established in the MSE department that allows eight different computers to be interconnected simultaneously. This arrangement allows us to demonstrate SEM principles in the classroom. An Apple Macintosh has been configured to allow the SEM image to be seen using CU-SeeMe.

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Advances in Materials Science and Engineering

10.33140/amse ◽

2020 ◽

Keyword(s):

Materials Science ◽

Science And Engineering ◽

Materials Science And Engineering

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Everything you've always wanted to know about what your students think they know but were afraid to ask.

MRS Proceedings ◽

10.1557/proc-proc-632-hh3.2 ◽

2000 ◽

Vol 632 ◽

Author(s):

Eric Werwa

Keyword(s):

Materials Science ◽

Science Museum ◽

Science And Engineering ◽

Museum Exhibit ◽

Museum Visitors ◽

The Public ◽

Materials Science And Engineering ◽

Properties Of Materials ◽

Formal Science ◽

Lay Public

ABSTRACTA review of the educational literature on naive concepts about principles of chemistry and physics and surveys of science museum visitors reveal that people of all ages have robust alternative notions about the nature of atoms, matter, and bonding that persist despite formal science education experiences. Some confusion arises from the profound differences in the way that scientists and the lay public use terms such as materials, metals, liquids, models, function, matter, and bonding. Many models that eloquently articulate arrangements of atoms and molecules to informed scientists are not widely understood by lay people and may promote naive notions among the public. Shifts from one type of atomic model to another and changes in size scales are particularly confusing to learners. People's abilities to describe and understand the properties of materials are largely based on tangible experiences, and much of what students learn in school does not help them interpret their encounters with materials and phenomena in everyday life. Identification of these challenges will help educators better convey the principles of materials science and engineering to students, and will be particularly beneficial in the design of the Materials MicroWorld traveling museum exhibit.

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Metal Nano/Microparticles for Bioapplications

International Journal of Molecular Sciences ◽

10.3390/ijms22094543 ◽

2021 ◽

Vol 22 (9) ◽

pp. 4543

Author(s):

Xuan-Hung Pham ◽

Seung-min Park ◽

Bong-Hyun Jun

Keyword(s):

Materials Science ◽

Functional Materials ◽

Science And Engineering ◽

Micro Particles ◽

Materials Science And Engineering

Nano/micro particles are considered to be the most valuable and important functional materials in the field of materials science and engineering [...]

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