Researchers used transient grating spectroscopy to track elastic changes associated with spinodal decomposition in Fe-Cr alloys, linking TGS measurements in Fe-36Cr with atom probe tomography and composition-based modeling. The work shows that the elastic response depends on chromium content and points to TGS as a potential non-destructive method for monitoring thermal aging in high-chromium ferritic phases.
A review of durable superhydrophobic materials reframes surface design around three dominant failure modes: structural degradation, loss of low-surface-energy chemistry, and coating-substrate interfacial failure. The authors connect fabrication choices with failure-matched testing and examine fluorine-free chemistries, protected architectures, self-healing systems, and interface engineering as routes toward longer service life in demanding environments.
Rare-earth oxides such as cerium oxide, lanthanum oxide, and yttrium oxide can improve laser-cladded metal coatings by refining grains, purifying the molten pool, strengthening interfaces, and altering solidification behavior. The review finds that these effects can increase hardness, wear resistance, corrosion resistance, and crack resistance, although performance depends strongly on additive concentration, particle size, alloy system, and processing conditions.
Researchers engineered a living Citrobacter sp. MICI21 biofilm on copper that outcompeted the corrosive sulfate-reducing bacterium Oleidesulfovibrio alaskensis G20 and formed a dense, mechanically cohesive barrier. The MICI21-dominated biofilm limited sulfide ingress and pitting and produced substantially greater corrosion resistance, supporting microbiome engineering as a potential strategy for living, adaptive coatings.
Researchers showed that alkaline cyanide aerosols interacting with six mineral substrates can spontaneously form mineral-organic hybrid materials, with mineral identity and reaction time shaping the resulting nitrogen-rich organic structures. The findings reveal that minerals can actively influence prebiotic molecular complexity while organic coatings can also stabilize or transform the underlying mineral phases.
Long-term carbonate mineralization helped preserve a 2nd-century Roman concrete sample from Hadrian’s Villa by forming calcite cements that filled pores, fractures, and microcracks. The study shows that calcite, alongside smaller amounts of C-A-S-H from volcanic aggregate reactions, contributed to the material’s millennial durability.
Summer has hit the Northern Hemisphere, bringing a roller-coaster of temperature and humidity swings to many areas.
Ionic defects are present in every frost sheet. Jonathan Boreyko’s team at Virginia Tech has used a high-voltage technique to polarize these ions and remove ice in a new study.
Researchers at North Carolina State University have created a new category of nontoxic, biodegradable solid lubricants designed to aid in seed dispersal with modern agricultural machinery, aiming to replace current lubricants that raise concerns regarding human and environmental toxicity.
Denso, Inc., a global leader in corrosion prevention and sealing technologies, is proud to highlight its Densyl Tape, a high-performance, multi-purpose petrolatum tape designed to provide unparalleled corrosion protection for steel pipes, flanges, valves, fittings, and other surfaces.
Terms
While we only use edited and approved content for Azthena
answers, it may on occasions provide incorrect responses.
Please confirm any data provided with the related suppliers or
authors. We do not provide medical advice, if you search for
medical information you must always consult a medical
professional before acting on any information provided.
Your questions, but not your email details will be shared with
OpenAI and retained for 30 days in accordance with their
privacy principles.
Please do not ask questions that use sensitive or confidential
information.
Read the full Terms & Conditions.