scholarly journals Fast surface dynamics enabled cold joining of metallic glasses

2019 ◽  
Vol 5 (11) ◽  
pp. eaax7256 ◽  
Author(s):  
Jiang Ma ◽  
Can Yang ◽  
Xiaodi Liu ◽  
Baoshuang Shang ◽  
Quanfeng He ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Metallic Glasses ◽  
Materials Science ◽  
Atomic Scale ◽  
Glass Transition Point ◽  
Grand Challenge ◽  
Surface Dynamics ◽  
Science And Engineering ◽  
Glass Composites ◽  
Materials Science And Engineering

Design of bulk metallic glasses (BMGs) with excellent properties has been a long-sought goal in materials science and engineering. The grand challenge has been scaling up the size and improving the properties of metallic glasses of technological importance. In this work, we demonstrate a facile, flexible route to synthesize BMGs and metallic glass-glass composites out of metallic-glass ribbons. By fully activating atomic-scale stress relaxation within an ultrathin surface layer under ultrasonic vibrations, we accelerate the formation of atomic bonding between ribbons at a temperature far below the glass transition point. In principle, our approach overcomes the size and compositional limitations facing traditional methods, leading to the rapid bonding of metallic glasses of distinct physical properties without causing crystallization. The outcome of our current research opens up a window not only to synthesize BMGs of extended compositions, but also toward the discovery of multifunctional glass-glass composites, which have never been reported before.

The New Materials Science and Engineering Curriculum at the Ohio State University

2002 ◽  
Vol 760 ◽  
Author(s):  
P. K. Gupta ◽  
P. M. Anderson ◽  
R. G. Buchheit ◽  
S. A. Dregia ◽  
J. J. Lannutti ◽  
...  
Keyword(s):  
General Education ◽  
Materials Science ◽  
Ohio State University ◽  
Atomic Scale ◽  
State University ◽  
New Materials ◽  
Senior Year ◽  
Science And Engineering ◽  
Materials Science And Engineering ◽  
The Ohio State University

ABSTRACTA new Materials Science and Engineering (MSE) curriculum is in effect at the Ohio State University starting fall, 2002. This curriculum is composed of four parts:1) General Education Core (required by the University of all undergraduates).2) Engineering Core (required by the College of Engineering). This includes courses in English, Math, Physics, Chemistry, Statistics, Programming, Statics, and Stress Analysis.3) Materials Science and Engineering Core (required by the MSE Department). It includes courses on Atomic Scale Structure, Microstructure and Characterization, Mechanical Behavior, Electrical Properties, Thermodynamics, Transport and Kinetics, Phase Diagrams, Phase Transformations, Modeling of Material Processes, Materials Selection, and Materials Performance).4) MSE-Specialization in the senior year (required by the MSE Department). Novel features of the new curriculum include:1) concentration in a specialized area of MSE in the senior year.2) increased exposure to MSE courses in the second year.3) increased industrial exposure.4) redesigned laboratory courses.

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

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.

scholarly journals Metal Nano/Microparticles for Bioapplications

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 [...]

Materials Science and Engineering Education

MRS Bulletin ◽  
1992 ◽  
Vol 17 (9) ◽  
pp. 18-21 ◽  
Author(s):  
R. Abbaschian
Keyword(s):  
Quality Of Life ◽  
Iron Age ◽  
Materials Science ◽  
Critical Role ◽  
Economic Security ◽  
Intraocular Lenses ◽  
Science And Engineering ◽  
Materials Science And Engineering ◽  
Do So

Materials science and engineering (MSE), as a field as well as a discipline, has expanded greatly in recent years and will continue to do so, most likely at an even faster pace. It is now well-accepted that materials are crucial to the national defense, to the quality of life, and to the economic security and competitiveness of the nation. Mankind has recognized the importance of manmade materials to the quality of life for many centuries. In many cases, the security and defense of tribes and nations have substantially depended on the availability of materials. It is not surprising that historical periods have been named after materials—the Bronze Age, the Iron Age, etc. The major requirements from materials in those days were their properties and performance. Today, in this age of advanced materials, the importance of materials to defense and quality of life has not changed. However, the critical role of materials has taken an additional dimension: it has become essential to enhancing industrial competitiveness.The knowledge base within MSE has also expanded vastly throughout these years and continues to do so at an increasing rate. We are constantly gaining a deeper understanding of the fundamental nature of materials, developing new ways to produce and shape them for applications extending from automobiles to supersonic airplanes, optoelectronic devices to supercomputers, hip implants to intraocular lenses, or from household appliances to gigantic structures. We are also learning that, in many of these applications, we need to depend on the combinations or composites of different classes of materials (metals, ceramic, polymers, and electronic materials) to enhance their properties.

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