CONSTITUTION:Al base metal 1 and Cu base metal 2 are brought into contact with each other by contact pressure P1 equal to or smaller than plastic deformation pressure, and the contact part is heated. When the junction part reaches the eutectic temperature, fused liquid 5 dependent upon Al-Cu...
(A) Analysis of solvents used in 190 publications of aryl−alkyl XEC shows that amides and ethers are common. The use of metal reductants in non-amide solvents remains underdeveloped. (B) Lewis basic additives enable selective XEC in a variety of non-amide solvents. ZnBr2 Limits Conversion ...
Alloy eutectoids can be divided into two classes: those which originate through the allotropy of the base metal and those which are associated with the decomposition of an intermediate phase (Spencer and Mack 1962). Eutectoids in Fe-, Ti- and Zr-based alloys are examples that belong to the...
The algorithm is demonstrated for reaction mechanism elucidation of transition metal catalysts. We highlight how to explore catalytic cycles in a systematic and reproducible way. The exploration objectives are fully adjustable, allowing one to harness the STEERING WHEEL for both structure-specific (...
115 A more systematic study of metal–ligand bond enthalpies for saturated transition-metal complexes was carried out by Landis.99 This study encompassed the entire d-block of the periodic table with a wide variety of ligands. In order to avoid steric hindrance, the ancillary ligands were all ...
Therefore, the DACs identified above with high OER activity should possess moderate interactions between intermediates and active sites. Here, we take the most active NiPd@NC as an example, the synergistic effect between metal dimers can be reflected in two aspects: (i) the modulation of the ...
A basic investigation in brazing was undertaken to study of the dissolution of iron base metal in copper brazing filler metal. Cylinders of iron material were immersed in molten copper and then rotated under dynamic conditions of peripheral velocities from 18.3 to 58.6 cm/sec in the temperature ...
including momentum, heat, and mass transfer. Transport phenomena along with chemical reactions constitute the core of chemical engineering science. Next, we will use ammonia oxidation on platinum–rhodium wire as an example to illustrate the chemical and transport phenomena during a chemical reaction pr...
A workflow for accelerated asymmetric reaction screening is established and verified by mapping the large-scale chemical space of more than 1600 reactions of α-asymmetric alkylation of aldehyde with organocatalysis and photocatalysis. Importantly, a class of high-enantioselectivity primary amine organo...
The condensation reaction typically takes place interfacially when a solution of said compound in a substantially non-polar organic liquid is contacted with a tertiary amine from a specific class and an aqueous alkali metal hydroxide solution. In addition to compounds of formula IV and, optionally,...