Carbon-coating proved an efficient and reliable strategy to increase the power capabilities lifetime of phosphate-based positive electrode materials for Li-ion batteries. In this work, we provide a systematic study on influence polyacrylonitrile-(PAN)-derived carbon coating electrochemical properties nanosized Li-rich Li1+δ(Fe0.5Mn0.5)1−δPO4 (Li-rich LFMP) cathode material, as well characteriza...

In this work, three composite structures of nickel-aluminum bronze (NAB) bonded with SUS630 stainless steel different intermediate layers were fabricated by laser deposition. The microstructure and corrosion behavior NAB in 3.5 wt.% NaCl solution studied. coating directly deposited on substrate contains a large number Fe-rich dendrites due to the dilution energy Cu-Fe liquid phase separation ch...

in the present study, the effects of growth defects and chromium content loss on the degradation of corrosion andpassivation of cathodic arc evaporation (cae-pvd) of stainless steel coating were investigated in 2 m sulphuricacid solution. eds analysis indicated that the micro-particles were obtained during the coating growth. in addition,it was detected that the growth defects had poor adhesion...

There is a continuous search for an alternative oxide material to the yttria-stabilized zirconia (7YSZ), which currently serves as the thermal barrier coating materials for turbine engines [1]. The new material should have low thermal conductivity, high temperature stability, and ferroelastic toughening as exhibited by the 7YSZ. Therefore in this study, the Y-Ta-Zr-O system was investigated. Th...

Flexible and wearable sensors for human performance sensing have received increased attention, particularly for fitness, healthcare, sports, and military applications. In particular, the measurement of human vital signals provides rich datasets for assessing the subject’s physiological or psychological condition, which are directly linked to performance. Instead of using conventional, bulky, we...

This research aim to optimize two kinds of cathode material, LNCA and lithium manganese rich materials (LNMC), which are potential cathodes of EV since their high theoretical specific capacity. However several drawbacks need to be improved such as their low cycling performance, unstable structure, and fast voltage fading. In this project doping other ions (Na, K, Al, Sn) replacing Ni and Mn ion...

Marine mussels utilize a variety of DOPA-rich proteins for purposes of underwater adhesion, as well as for creating hard and flexible surface coatings for their tough and stretchy byssal fibers. In the present study, moderately strong, yet reversible wet adhesion between the protective mussel coating protein, mcfp-1, and amorphous titania was measured with a surface force apparatus (SFA). In pa...

The liquid crystalline phase behavior of sterically-stabilized goethite particles in toluene was studied using small-angle X-ray scattering. The results were compared with those from charged particles in water, with and without magnetic field: similarly rich phase behavior was found. Furthermore, the special magnetic properties were retained after coating the particles with amino-functionalized...

A relevant series of symmetric supramolecular porphyrins has been obtained by attaching four [RuII(bipy)2Cl] groups to the pyridyl substituents of meso-tetra(4-pyridyl)porphyrin and its metallated derivatives. These compounds display a rich electrochemistry and versatile catalytic, electrocatalytic and photochemical properties, associated with the ruthenium-bipyridine and the porphyrin complexe...

objective: a clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. this study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. methods: this laboratory experimental study was conducted on zirconia discs. a total of 120 ytzp zirconia (zirkonzahn) ...