New technique builds super-hard metals from nanoparticles — ScienceDaily

Metallurgists have all kinds of ways to make a chunk of metal harder. They can bend it, twist it, run it between two rollers or pound it with a hammer. These methods work by breaking up the metal’s grain structure — the microscopic crystalline domains that form a bulk piece of metal. Smaller grains make […]

New technique builds super-hard metals from nanoparticles

IMAGE: This gold “coin ” was made from nanoparticle building blocks, thanks to a new technique developed by Brown University researchers. Making bulk metals this way allows for precise of the metal’s… view more  Credit: Chen Lab / Brown University PROVIDENCE, R.I. [Brown University] — Metallurgists have all kinds of ways to make a chunk of […]

New technique builds super-hard metals from nanoparticles

This gold “coin” was made from nanoparticle building blocks, thanks to a new technique developed by Brown University researchers. Making bulk metals this way allows for precise of the metal’s microstructure, which enhances its mechanical properties. Credit: Chen Lab / Brown University Metallurgists have all kinds of ways to make a chunk of metal harder. […]

Using metals for fuel

Credit: Pixabay/CC0 Public Domain Did you know that in microgravity we are preparing one of the most promising fuels for the future? Microgravity is helping to find answers and models to refine the processes needed to efficiently burn solid fuel like iron dust. Are we witnessing the raise of a new ‘Iron Age?’ Could we […]

Crops grown in Bangalore high on toxic heavy metals

Scientists in Bangalore, India have found toxic levels of four heavy metals, chromium, nickel, cadmium and lead, in crops and vegetables grown on soil irrigated with water from six lakes in the city, reports a study published December in Current Science. According to the study, the 17 lakes in and around Bangalore, a bustling city […]

Simple and cost-effective extraction of rare metals from industrial waste

Credit: CC0 Public Domain Many rare metals are in scarce supply, yet demand for use in electronics, medical instrumentation, and other purposes continues to increase. As waste, these metals pollute the environment and harm human health. Ideally, we would recycle the metals from waste for reuse. Unfortunately, current recycling methods are some combination of complex, […]

Simple and cost-effective extraction of rare metals from industrial waste

Kanazawa, Japan – Many rare metals are in scarce supply, yet demand for use in electronics, medical instrumentation, and other purposes continues to increase. As waste, these metals pollute the environment and harm human health. Ideally, we would recycle the metals from waste for reuse. Unfortunately, current recycling methods are some combination of complex, expensive, […]

New procedure will reduce the need for rare metals in chemical synthesis

Tertiary alkylative cross-coupling of alkyl or aryl electrophiles. Credit: Kanazawa University Pharmaceuticals, plastics, and many other chemical products have transformed human life. To prepare these products, chemists often use a catalyst—frequently based on rare metals—at various points in their syntheses. Although rare-metal catalysts are incredibly useful, their limited supply means that their use is unsustainable […]