The 3 - D X-ray imaging technique and simulated planetary conditions that NASA is enlisting at the ALS provide the best pictures yet of the behavior of the internal 3 -
D microstructure of spacecraft materials.
Not exact matches
Economists wanting to get a look at market
microstructure would also benefit.
Shah
has conducted research in dairy foods processing for more than 35 years and
has published results on physiology, bioactivities and health properties of probiotics; functional starter cultures; and the texture and
microstructure of low - fat yogurt and mozzarella cheese.
A dinosaur bone buried for 80 million years
has yielded a mix of proteins and
microstructures resembling cells.
Reporting their latest results in the journal Bioinspiration & Biomimetics, scientists in Germany based at Karlsruhe Institute of Technology's Institute of
Microstructure Technology (IMT) together with researchers from the Nees Institute for Biodiversity of Plants at the University of Bonn,
have been discovering what makes these plants so special.
Engineers
have found ways to endow ordinary materials with intricate
microstructures, creating «metamaterials» that can curve light around very small objects and make them invisible.
Using a method called immersed surface accumulation 3 -
D printing (ISA - 3
D printing), the research team successfully created the egg - beater
microstructure in samples made from plastic and carbon nanotubes.
For their production and application, Wegener and his team
have developed an innovative method that covers all processes from
microstructure fabrication to the readout of information.
Now, the team
has added two new metals to the alloy mixture to form a «cross-lamellar
microstructure.»
They were interested in a phase separation phenomenon that
has been known for around 50 years, but could neither be precisely observed nor understood until now: The
microstructure of nickel - based alloys changes under controlled ageing or heat treatment and in the classical two - phase
microstructure new phases are initially formed.
A team of researchers at Access, a research centre associated with the Technical University of Aachen in Germany,
has developed a «common language» for modelling and simulation tools used in studying the
microstructures of materials.
They also
have found small red
microstructures that resemble red blood cells.
By changing the
microstructure in magnesium alloys, Mohsen Esmaily, researcher in Atmospheric Corrosion at Chalmers University of Technology,
has succeeded in improving possibilities for the transport sector to use these materials to decrease the weight of vehicles.
Now that the connection
has been mapped, new possibilities to optimize the
microstructure for even better corrosion resistance
have opened up.
KIT researchers
have developed
microstructured lightweight construction materials of highest stability.
«These adhesives take the form of thin flexible films with bioinspired mushroom - shaped micropillars uniformly spread on the surface of
microstructure,» says Hyun -
Ha Park in the Ph.D. program of Mechanical Engineering, the first author of the study.
Cindy Barrera, a postdoctoral researcher in Cornish's lab, found in tests that eggshells
have porous
microstructures that provide larger surface area for contact with the rubber, and give rubber - based materials unusual properties.
However, until now, our understanding of exactly how the sliding behaviour of liquid droplets depends on surface
microstructures has been limited.
«Software lets designers exploit the extremely high resolution of 3 -
D printers: Designing the
microstructure of printed objects.»
In order to produce 3D
microstructured materials for automobile components, for instance, Empa researchers
have been using a 3D printing method called «Direct Ink Writing» for the past year (DIW, see box).
After the first attempts at printing and X-ray analysis of the obtained
microstructures, the researchers noticed that the CNC in the printed object
had aligned itself almost perfectly in the direction it was printed in.
Professor Bunge's experimental work
has provided a detailed knowledge of the
microstructure of skin.
Because we're printing something that already contains a specific
microstructure, we don't
have to pattern each individual piece.
Within two weeks of receiving the express package from Bell Laboratories, we
had done a proof - of - principle experiment showing that the spectral broadening in the
microstructure fiber preserved the frequency comb structure in the original laser pulse.
Brown researchers
have found a way to 3 -
D print intricate temporary
microstructures that can be degraded on demand using a biocompatible chemical trigger.
However, according to new findings published in the journal Nature Communications, carbon - sulfur
microstructures that
would be recognized today by some experts as biomaterials are capable of self - assembling under certain conditions, even without direct biological activity.
Palaeontologists
have often examined bone
microstructure in their investigations of dinosaur growth and physiology.
Over the last few years, the researchers
have focused on further refining the
microstructure, all so that the layer will be of interest for the industry to use.
(c) Printing of the ionic hydrogel on the passive layer after surface treatment (left), final 3 -
D printed DEA (middle), and
microstructure image of the device cross-section (right).
«Novel 3 -
D manufacturing leads to highly complex, bio-like materials:
Microstructures could
have myriad uses, including batteries and ultrastrong materials.»
The paper, «3 -
D Printing of Free Standing Liquid Metal
Microstructures,» is published online in Advanced Materials.
«Each food
has its own
microstructure,» Singh says, «Whether it is porous or compacted or its cells are held together through some binding agent.
«Even though they
have the same basic
microstructure, they are completely different materials,» Tomar said.
Dated to 3.43 billion years ago in sandstone from the Strelley Pool Formation in Western Australia, the
microstructures were found with micrometer - sized pyrite crystals (fool's gold, an iron - sulfur mineral), as
would be expected as the metabolic by - products of sulfur - based life that employ «sulphate - reduction and sulphur - disproportionation pathways.»
This view reveals the
microstructure of the mask, highlighting its concentric grooves, which
have a thickness of about 1 / 100th that of a human hair.
Researchers at NYU's Center for Advanced Imaging Innovation Research
have developed a new way to measure changes in
microstructure of muscle fiber.
Image caption: Researchers used an optical fiber housed inside the needle pictured to deliver light for 3 -
D printing
microstructures.
«In analyzing the X-ray data on this level, we were able to track the electrochemical reactions with far more accuracy than previous methods, and determined that iron fluoride performs better when it
has a porous
microstructure,» says Li.
She
has managed the research group «Nanostructured Materials and
Microstructure» since 1991 and is the Director of the ICMS since July 2001.
Audi
has combined a front spoiler, steeply pitched separating edges at the rear and aerodynamically optimized wheels for the first time, as well as an aerodynamically optimized,
microstructured floor pan.
Economists wanting to get a look at market
microstructure would also benefit.
Joris Laarman Lab; Aluminum Gradient Chair, from
Microstructures series, 2014; Laser - sintered aluminum; H x W x
D: 77 × 72 × 70 cm (30 5/16 × 28 3/8 × 27 9/16 in.)
Joris Laarman Lab; Soft Gradient Chair, from
Microstructures series, 2014; 3
D - printed TPU (thermoplastic polyurethane); H x W x
D: 77 × 72 × 70 cm (30 5/16 × 28 3/8 × 27 9/16 in.)
We
have just submitted a paper to JGR that looks at these upper ocean fluxes measured with thermal
microstructure and CTD for the year - long SHEBA experiment.
To improve those emissions, the dimensions of the
microstructures would have to shrink by a factor of 15, until the rods were only about 1,000 atoms wide.
Lately, material scientists
have created ever - stronger metals by involving intricate
microstructures, but the welding technique every so oft...