Materials and Methods: The study evaluated 10 samples each of fresh alloy, recast alloy with addition of 50% of wt. of new alloy and recast alloy without addition of new alloy. Samples were subjected to computerized Universal Testing Machine and mechanical properties viz. tensile strength, yield strength, percentage of elongation, modulus of elasticity and microhardness was tabulated. Data was ...

A novel hydrothermal layer-by-layer processing method for the fabrication of core/alloy nanoparticles with highly tunable surface plasmon resonance is described. For a model system of Au/Au(x)Ag(1-x), the processing temperature, alloy composition, and alloy thickness resulted in unique and tailorable plasmonic signatures. The discrete dipole approximation and selective alloy etching were used t...

The microstructure, isothermal oxidation, and hardness of the Nb-23Ti-5Si-5Al-5Hf-5V-2Cr-2Sn alloy Young’s moduli elasticity its Nbss Nb5Si3 were studied. was selected using niobium intermetallic composite elaboration (NICE) design methodology. There macrosegregation Ti Si in cast alloy. Nbss, ?Nb5Si3, ?Nb5Si3, HfO2 phases present as-cast or heat-treated plus TiN near-the-surface areas latter. ...

FeCrNi medium entropy alloy (MEA) is a promising structural material due to its outstanding mechanical properties and corrosion resistance. However, study on the high-temperature tribological behaviors of MEA still scarce. This work investigates performances against Si3N4 balls over typical operating temperatures from 25 800 °C. The exhibits excellent wear resistance at an intermediate temperat...

Abstract The effect of hydrogen on oxygen permeability has been studied in a diluted Pd–Cr alloy dual- and single- atmosphere conditions between 600 950 °C. 0.3 mm thick Pd–1.5Cr foil was exposed dry humid air as well dual-atmosphere conditions, with one sample surface being to hydrogen, encountered solid oxide fuel cells. At all temperatures, Cr oxidized internally forming internal oxidation z...

A new compound, MK800-62F1, was isolated from a cultured broth of Streptomyces diastatochromogenes MK800-62F1. The structure was determined by NMR analysis and degradation experiments.

We developed a new surface-selective time-resolved nonlinear spectroscopy, femtosecond time-resolved electronic sum-frequency generation (TR-ESFG) spectroscopy, to investigate ultrafast dynamics of molecules at liquid interfaces. Its advantage over conventional time-resolved second harmonic generation spectroscopy is that it can provide spectral information, which is realized by the multiplex d...

Farah Maria Drumond Chequer1, Daniel Junqueira Dorta2 and Danielle Palma de Oliveira1 1USP, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto – SP, 2USP, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto –...

Rare-earth free Alnico permanent magnet is composed of spinodally decomposed ferromagnetic L10 Fe–Co rich (?1 phase) embedded in paramagnetic or weak L12 Al–Ni (?2 matrix. We deposited ?1 phase alloy (Fe52Co35.8Al5.6Ni5.3Ti0.9Cu0.4) on (111) oriented Pt (100 nm)/TiO2/SiO2/Si substrate to investigate coercivity enhancement induced by the and also interdiffusion through annealing. It demonstrated...