منابع مشابه
Materials, critical materials and clean-energy technologies
— Modern engineered materials, components and systems depend on raw materials whose properties provide essential functionality to these technologies. Some of these raw materials are subject to supply-chain risks, and such materials are known as critical materials. This paper reviews corporate, national and world perspectives on material criticality. It then narrows its focus to studies that ass...
متن کاملMesoporous materials for clean energy technologies.
Alternative energy technologies are greatly hindered by significant limitations in materials science. From low activity to poor stability, and from mineral scarcity to high cost, the current materials are not able to cope with the significant challenges of clean energy technologies. However, recent advances in the preparation of nanomaterials, porous solids, and nanostructured solids are provid...
متن کاملSelected New Technologies and Research Themes in Materials Forming
Cyclic plastic deformation introduced by forging with a rotating lower anvil leads to materials with grain size between 20 and 200 nm, depending on various factors. This severe plastic deformation process known as High Pressure Torsion (HPT) can be used for forming nanopowders in order to refine their microstructure. Mechanical properties of such products are given by the amount of plastic defo...
متن کاملNon-volatile memory technologies: emerging concepts and new materials
The current mainstream, based on the Flash technology, is expected to be the reference technology also for the next few years. Nevertheless Flash has technological and physical constraints that make more difficult their further scaling. In this contest there is the industrial interest for alternative technologies that exploit new materials and concepts to go beyond the Flash technology, to allo...
متن کاملThe Food Crisis and New Technologies
The present crisis in global economy, the issue of cli mate change and the fast-growing world population, <span style="font-variant: normal; font-s...
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ژورنال
عنوان ژورنال: Journal of the Fuel Society of Japan
سال: 1988
ISSN: 0369-3775,2185-226X
DOI: 10.3775/jie.67.11_931