scholarly journals Fabrication of compliant mechanisms on the mesoscale

2011 ◽  
Vol 2 (1) ◽  
pp. 129-137 ◽  
Author(s):  
G. R. Hayes ◽  
M. I. Frecker ◽  
J. H. Adair
Keyword(s):  
Engineering Design ◽  
Mechanical Engineering ◽  
Materials Science ◽  
Compliant Mechanisms ◽  
Mechanical Design ◽  
Fabrication Process ◽  
Forming Process ◽  
Science And Engineering ◽  
Materials Science And Engineering ◽  
Design Requirements

Abstract. The fabrication of compliant mechanisms on the mesoscale requires collaboration of mechanical engineering design, with materials science and engineering fabrication approaches. In this paper, a review of current fabrication approaches to produce mesoscale devices is given, highlighting the benefits and limitations of each technique. Additionally, a hierarchy is provided, eliminating fabrication techniques that do not completely satisfy the mechanical design requirements of the compliant mechanisms. Furthermore, the lost mold-rapid infiltration forming process (LM-RIF) is described, and compared to existing fabrication approaches. Finally, prototype mesoscale compliant mechanisms are fabricated, demonstrating the versatility of the LM-RIF process to produce both metal and ceramic devices, as well as ability of a fabrication process to work in collaboration with mechanical design.

The Role of Digital Libraries in Teaching Materials Science and Engineering

2017 ◽  
pp. 1420-1441
Author(s):  
Arlindo Silva ◽  
Virginia Infante
Keyword(s):  
Digital Libraries ◽  
Material Properties ◽  
Mechanical Engineering ◽  
Materials Science ◽  
Technical Information ◽  
Real Data ◽  
Teaching Materials ◽  
Science And Engineering ◽  
Materials Science And Engineering

Nowadays, the number of commercially available materials is growing steadily. Technical information on materials resides in digital libraries that complement classical Materials Science and Engineering (MSE) textbooks. Information on materials in the form of databases of material properties can elaborate on the science and engineering fundamentals explained in textbooks with real data about current materials. Hence digital libraries can become a learning tool to support teaching of science and engineering fundamentals. This chapter described two courses offered for the Mechanical Engineering degree at Instituto Superior Tecnico, Portugal, namely Materials Science and Materials in Engineering. The Materials Science course uses the traditional textbooks and a bottom-up approach. In the Materials in Engineering course, the CES EduPack database was introduced to support a design-led approach. This chapter showed that the teaching of Materials Science with databases should be encouraged and described a successful experience with teaching Materials in Engineering using digital libraries.

The Role of Digital Libraries in Teaching Materials Science and Engineering

2015 ◽  
pp. 190-210 ◽  
Author(s):  
Arlindo Silva ◽  
Virginia Infante
Keyword(s):  
Digital Libraries ◽  
Material Properties ◽  
Mechanical Engineering ◽  
Materials Science ◽  
Technical Information ◽  
Real Data ◽  
Teaching Materials ◽  
Science And Engineering ◽  
Materials Science And Engineering

Nowadays, the number of commercially available materials is growing steadily. Technical information on materials resides in digital libraries that complement classical Materials Science and Engineering (MSE) textbooks. Information on materials in the form of databases of material properties can elaborate on the science and engineering fundamentals explained in textbooks with real data about current materials. Hence digital libraries can become a learning tool to support teaching of science and engineering fundamentals. This chapter described two courses offered for the Mechanical Engineering degree at Instituto Superior Tecnico, Portugal, namely Materials Science and Materials in Engineering. The Materials Science course uses the traditional textbooks and a bottom-up approach. In the Materials in Engineering course, the CES EduPack database was introduced to support a design-led approach. This chapter showed that the teaching of Materials Science with databases should be encouraged and described a successful experience with teaching Materials in Engineering using digital libraries.

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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