Ryan Ott
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View article: Achieving High Tensile Strength and Ductility in Refractory Alloys by Tuning Electronic Structure
Achieving High Tensile Strength and Ductility in Refractory Alloys by Tuning Electronic Structure Open
Energy efficiency of heat engines (gas and steam turbines) for electricity production and propulsion scale with operating temperature following the Carnot cycle. Commercial Ni- and Co-based superalloys melt near 1500°C and rapidly lose mec…
View article: Short-Range Order Enhances Strength and Tensile Ductility in Nanocrystalline Silver with Intercalation of Amorphous Nickel Nanolayers
Short-Range Order Enhances Strength and Tensile Ductility in Nanocrystalline Silver with Intercalation of Amorphous Nickel Nanolayers Open
Silver, known for its high thermal and electrical conductivity, is an ideal metal for thin-film electrode applications. Because alloying can negatively affect conductivity, enhancing the strength and resistance to strain poses a tremendous…
Linking Order to Strength in Metals Open
The metallurgy and materials communities have long known and exploited fundamental links between chemical and structural ordering in metallic solids and their mechanical properties. The highest reported strength achievable through the comb…
Aluminothermic reduction of CeO<sub>2</sub>: mechanism of an economical route to aluminum–cerium alloys Open
Time-resolved X-ray diffraction enabled mechanistic insight into the aluminothermic reduction of CeO 2 . The environmentally friendly process enables a direct route to Al–Ce alloy production and a high-value use for excess Ce from rare ear…
Microstructure Alignment Effects from Engineered Cooling during Additive Manufacturing of Alnico Magnets from Prealloyed Powder Open
Alnico is a rare-earth free; permanent magnet (PM) which maintains its saturation magnetization while at temperatures up to 550°C but lacks the coercivity and energy product needed for a wide range of demanding applications. With an optima…
Recovering rare earth metals from magnet scrap Open
A method is provided for treating a rare earth metal-bearing scrap material by melting an extractant selected from the group consisting of bismuth (Bi) and lead (Pb) and contacting the melted extractant and the scrap material at a temperat…
Nanotwinned silver alloy film with controlled architecture Open
A technique for forming a material including nanotwinned silver crystals in solid solution with a solute that exhibits enhanced strength and desirable electrical conductivity, as compared to coarse-grained material. Synthesis of nanotwinne…
Recovering heavy rare earth metals from magnet scrap Open
A method of treating rare earth metal-bearing permanent magnet scrap, waste or other material in a manner to recover the heavy rare earth metal content separately from the light rare earth metal content. The heavy rare earth metal content …
Manufacturing Processes for Permanent Magnets: Part II—Bonding and Emerging Methods Open
Permanent magnets produce magnetic fields and maintain the field even in the presence of an opposing magnetic field. They are widely used in electric machines, electronics, and medical devices. Part I reviews the conventional manufacturing…
Application of Ce for scavenging Cu impurities in A356 Al alloys Open
Secondary (recycled) Al is increasingly used in castings due to its lower cost and carbon footprint relative to primary Al. However, the presence of certain impurity elements in secondary Al degrades its properties, often requiring dilutio…