When metallic components in airplanes, bridges and other structures crack, the results are often catastrophic. But Johns Hopkins University researchers have found a way to reliably predict the vulnerabilities earlier than current tests.
In a paper published today in Science, Johns Hopkins University researchers detail a new method for testing metals at a microscopic scale that allows them to rapidly inflict repetitive loads on materials while recording how ensuing damage evolves into cracks.
“We’re able now to have a more fundamental understanding about what leads up to cracks,” El-Awady said. “The practical implication is that it will allow us to understand and predict when or how the material is going to fail.”
Whether it is the pounding of vehicles on bridges or shifts in air pressure on airplanes, such continuous change called “cyclic loading” gradually induces slips in the internal molecular structure of the most durable metals until cracks
WASP-121b is an exoplanet located 850 light years from Earth, orbiting its star in less than two days — a process that takes Earth a year to complete. WASP-121b is very close to its star — about 40 times closer than Earth to the Sun. This close proximity is also the main reason for its immensely high temperature of around 2,500 to 3,000 degrees Celsius. This makes it an ideal object of study to learn more about ultra-hot worlds.
Researchers led by Jens Hoeijmakers, first author of the study and postdoctoral research fellow at the National Centre of Competence in Research PlanetS at the Universities of Bern and Geneva, examined data that had been collected by the high-resolution HARPS spectrograph. They were able to show that a total of at least seven gaseous metals occur in the atmosphere of WASP-121b. The results were recently published in the journal Astronomy &
The surface of metals plays a key role in many technologically relevant areas, such as catalysis, sensor technology and battery research. For example, the large-scale production of many chemical compounds takes place on metal surfaces, whose atomic structure determines if and how molecules react with one another. At the same time, the surface structure of a metal influences its electronic properties. This is particularly important for the efficiency of electronic components in batteries. Researchers worldwide are therefore working intensively on developing new kinds of methods to tailor the structure of metal surfaces at the atomic level.
A team of researchers at the University of Münster, consisting of physicists and chemists and led by Dr. Saeed Amirjalayer, has now developed a molecular tool which makes it possible, at the atomic level, to change the structure of a metal surface. Using computer simulations, it was possible to predict that the restructuring of
Billions of noble metal catalysts are used worldwide for the production of chemicals, energy generation, or cleaning the air. However, the resources required for this purpose are expensive and their availability is limited. To optimize the use of resources, catalysts based on single metal atoms have been developed. A research team of Karlsruhe Institute of Technology (KIT) demonstrated that noble metal atoms may assemble to form clusters under certain conditions. These clusters are more reactive than the single atoms and, hence, exhaust gases can be much better removed. The results are reported in Nature Catalysis.
Noble metal catalysts are used for a wide range of reactions. Among others, they are applied in nearly all combustion processes to reduce pollutant emissions. Often, they consist of very small particles of the active component, such as a noble metal, which are applied to a carrier material. These so-called nanoparticles are composed of
Carbon dioxide (CO2) levels are rising and our planet is heating up. What do we do? What if we used this excess CO2 as a raw material to produce things we need — similar to how plants use it to produce oxygen.
This is one thing artificial photosynthesis has set out to do.
Artificial photosynthesis is a chemical process that mimics the natural process of photosynthesis to convert sunlight, water, and carbon dioxide into useful things like carbohydrates and oxygen. The problem is that current technologies can only produce molecules with 1 carbon atom. These molecules are too weak to be used for the production of more complex materials. Standard experimental conditions have not been stable enough to allow for molecules with bonds of more than one carbon atom to form.
New research at Osaka City University has found that simply adding metal ions like aluminum and
Technavio has been monitoring the metal welding market and it is poised to grow by $ 8.56 mn during 2020-2024, progressing at a CAGR of over 5% during the forecast period. The report offers an up-to-date analysis regarding the current market scenario, latest trends and drivers, and the overall market environment.
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Technavio has announced its latest market research report titled Global Metal Welding Market 2020-2024 (Graphic: Business Wire).
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The “Silicon Metal Market Insights 2020, Analysis and Forecast Global and Chinese Market to 2025, by Manufacturers, Regions, Technology, Application, Product Type” report has been added to ResearchAndMarkets.com’s offering.
This report is a professional and in-depth study on the current state of the global Silicon Metal market with a focus on the Chinese market. The report provides key statistics on market of Silicon Metal. It is a valuable source of guidance and direction for companies and individuals interested in Silicon Metal industry.
Key points of Silicon Metal Market Report:
1. The report provides a basic overview of Silicon Metal industry including: definition, applications and manufacturing technology.
2. The report explores Global and Chinese major players in Silicon Metal market. In this part, the report presents the company profile, product specifications, capacity, production value, and 2015-2020 market shares for each company.
3. The report depicts the global and Chinese total Silicon
The MarketWatch News Department was not involved in the creation of this content.
Sep 25, 2020 (The Expresswire) — Metal Composite Panel Market” is valued at 4919 million USD in 2020 is expected to reach 7233.8 million USD by the end of 2026, growing at a CAGR of 5.6% during 2021-2026, According to New Research Study. 360 Research Reports provides key analysis on the global market in a report, titled “Metal Composite Panel Market by Types (5mm), Applications (Building Curtain Wall, Interior Decoration, Other Applications) and Region – Global Forecast to 2026” Browse Market data Tables and Figures spread through 121 Pages and in-depth TOC on Metal Composite Panel Market.
COVID-19 can affect the global economy in three main ways: by directly affecting production and demand, by creating supply chain and market disruption, and by its financial impact on firms and financial markets.
In a new report from Gematsu, the Taiwan Digital Game Rating Committee has reportedly rated a selection of classic Konami games for PC, which could indicate an imminent relaunch for these games on PC on official platforms. Eight games in total were rated for PC, five of which are in a collection, spanning a fifteen year period starting all the way back in 1987 and ending in 2002. The games that were rated include:
Metal Gear Solid
Metal Gear Solid 2: Substance
Konami Collector’s Series: Castlevania and Contra, which includes
Castlevania 2: Simon’s Quest
Castlevania 3: Dracula’s Curse
It’s not clear if these are HD remasters that are intended for release on all modern gaming platforms, or if Konami is simply porting the original games to PC (which would be a slightly baffling move). Either way, it’s likely that we’ll be seeing these games