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Nanotechnology Now Home > Press > Scientists observe role of cavitation in glass fracturing Fig. 1. Observation of the cavitation-dominated crack propagation in a metallic glass. CREDIT Institute of Physics Abstract: Glassy materials play an integral role in the modern world, but inherent brittleness has long been the Achilles heel that severely limits their usefulness. Due to the disordered amorphous structure of glassy materials, many mysteries remain. These include the fracture mechanisms of...

Dr. SHEN Laiquan, Prof. BAI Haiyang, Prof. SUN Baoan, and others from Prof. WANG Weihuas group at the Institute of Physics of the Chinese Academy of Sciences (CAS) have successfully observed the effect of cavitation on fracture behavior in glasses. They revealed that crack propagation is dominated by the self-organized nucleation, growth, and coalescence of nanocavities in metallic glasses.

 E-Mail IMAGE: Historical Silk Road trade routes are illustrated in red, and the white star marks the studied cave in Central Asia view more  Credit: @Science China Press The Silk Road was the most elaborate network of trade routes in the ancient world, linking ancient populations in East Asia to those in southwest Asia, via Central Asia. These trade routes fostered the spread of ideas, religions, and technologies over the past 2,000 years. Before the establishment of organized exchan...

Credit: @Science China Press The rapid development of silicon-based transistors leads to its integration getting closer to the limit of Moores law. Graphene is expected to become the next generation of mainstream chip materials due to its ultra-high carrier mobility. However, it is difficult to obtain a high on/off current ratio for intrinsic graphene-based transistor owing to the absence of bandgap. Graphene nanoribbons, which possess a tunable bandgap and unique optoelectrical properties, hav...

 E-Mail IMAGE: Sky distribution of the latest DESI imaging data release from the website of the DESI imaging legacy surveys. The enlarged image is part of the sky showing the DESI spectroscopic... view more  Credit: DESI website The Beijing-Arizona Sky Survey (BASS) team of National Astronomical Observatories of Chinese Academy of Sciences (NAOC) and their collaborators of the Dark Energy Spectroscopic Instrument (DESI) project released a giant 2D map of the universe, which paves the ...

 E-Mail IMAGE: Fishing boats amidst "Arctic sea smoke " near Qingdao, China on January 7th. Arctic sea smoke is a result of frigid air passing over relatively warm water; the phenomenon is rare,... view more  Credit: Shaoqing Wang Even with the COVID-19-related small dip in global carbon emissions due to limited travel and other activities, the ocean temperatures continued a trend of breaking records in 2020. A new study, authored by 20 scientists from 13 institutes around the world,...

Date Time World-first echidna, improved platypus genomes mapped An international team of scientists, including from the University of Sydney, have sequenced monotreme genomes, leading to evolutionary and future medical discoveries. Credit: Echidna CSI. The first ever echidna genome and a greatly improved, high-quality platypus genome have been sequenced by an international team of researchers. The findings, published in Nature, were produced by 40 researchers from Australia, China, Jap...

1State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China. 2State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. 3National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. 4University of Chinese Academy of Sciences, Beijing 100049, China. 5Beijing Ad...

 E-Mail IMAGE: a. OsTCP19-H is significant correlated with soil nitrogen content. b-f. OsTCP19-H significantly increases grain yield and NUE under LN and MN conditions. view more  Credit: IGDB Chinese scientists from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences (CAS) have found a gene that plays an important role in helping rice adapt to low soil nitrogen. Nitrogen fertilizer application is a strategic challenge for sustainable agriculture: O...

Metal ion sieving using a bioinspired nanochannel membrane CREDIT XIN Weiwen Abstract: Lithium is an energy-critical element that is considered to be a geopolitically significant resource. However, the supply of lithium may not be enough to meet continuously increasing demand. As a result, scientists are looking for new ways to extract lithium ions. Bionic idea boosts lithium-ion extraction Beijing, China | Posted on January 1st, 2021 Ion selective membranes have already been used extensively f...