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79 Current news about the topic transmission electron microscopy

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Rolling the dice on perovskite interfaces

30-Oct-2017

Perovskites are a type of mineral and class of materials, and have been attracting a great deal of attention for their potential applications to technologies such as those used in solar cells. These unique materials have well-ordered structures and show many interesting properties that could be ...

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A radical solution comes from mixing tools

05-Oct-2017

For natural gas to be efficiently converted into useful industrial products requires the right catalytic process. Researchers from KAUST and the US combine state-of-the-art techniques for material characterization to demonstrate a unique reaction pathway that shows that molten catalysts based on ...

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Quick and reliable 3-D imaging of curvilinear nanostructures

08-Sep-2017

Physical and biological sciences increasingly require the ability to observe nano-sized objects. This can be accomplished with transmission electron microscopy (TEM), which is generally limited to 2D images. Using TEM to reconstruct 3D images instead usually requires tilting the sample through an ...

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Engineering team images tiny quasicrystals as they form

21-Aug-2017

When Israeli scientist Daniel Shechtman first saw a quasicrystal through his microscope in 1982, he reportedly thought to himself, "Eyn chaya kazo" -- Hebrew for, "There can be no such creature." But there is, and the quasicrystal has become a subject of much research in the 35 years since ...

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Shapeshifting materials

Using light to rearrange macroscopic structures

23-May-2017

Traditional chemistry is immensely powerful when it comes to producing very diverse and very complex microscopic chemical molecules. But one thing out of reach is the synthesis of large structures up to the macroscopic scale, which would require tremendous amounts of chemicals as well as an ...

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Thin-film ferroelectrics go extreme

12-May-2017

Scientists have greatly expanded the range of functional temperatures for ferroelectrics, a key material used in a variety of everyday applications, by creating the first-ever polarization gradient in a thin film. The achievement by researchers at the Department of Energy's Lawrence Berkeley ...

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A fast, non-destructive test for 2-dimensional materials

04-May-2017

Thinning a material down to a single-atom thickness can dramatically change that material's physical properties. For example, graphene, the best-known 2D material, has unparalleled strength and electrical conductivity, unlike its bulk form, graphite. Researchers have begun to study hundreds of ...

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High-sensitivity cameras reveal the atomic structure of metal-organic frameworks

27-Feb-2017

Researchers at KAUST have developed a method for fine-scale imaging of metal-organic frameworks (MOFs), three-dimensional structures made up of metal ions connected by organic ligands. MOFs are useful for gas storage and separation because they can be designed to have precise pore sizes of ...

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Gum metals pave the way for new applications

Scientists discover peculiarities in crystal structure of titanium alloy

02-Feb-2017

Metals which can be bent as gum pave the way for new industrial applications for example in the aerospace industry. These so-called gum metals exist but the mechanism behind this behaviour was still unsettled and thus difficult to be used for applications. Scientists from the Max-Planck-Institut ...

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Explaining how 2-D materials break at the atomic level

23-Jan-2017

Cracks sank the 'unsinkable' Titanic; decrease the performance of touchscreens and erode teeth. We are familiar with cracks in big or small three-dimensional (3D) objects, but how do thin two-dimensional (2D) materials crack? 2D materials, like molybdenum disulfide (MoS2), have emerged as an ...

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