Plasma nitrocarburizing and plasma oxidizing treatments were performed to improve the wear and corrosion resistance of AISI 4140 steel.Plasma nitrocarburizing w
The cathode material La1-xSrxCuO3-δ( x =0.15, 0.2, 0.3, 0.4) was synthesized by a sol-gel method. X-ray diffraction reveals that a single phase of perovskite i
A series of multi-component Ml-based hydrogen storage alloys with a cobalt atomic ratio of 0.40-0.75 were prepared. The electrochemical properties under differe
By means of the positron annihilation techn ique (PAT), superfine TiC powders obtained by ball-milling pro cess were characterized. The results showed that ther
Silica gel luminophors containing 1, l O-phenanthroline-tris(m-methylbenzoate) europium (or terbium) complexes were prepared by sol-gel method. The thermal deco
The thresholds of short fatigue cracks for aluminum-lithium alloys 2090 and 2090+Ce are quantitatively evaluated. The essential reason resulting in stronger sho
The laser beam welding technique was used to process SiC particles /6063Al alloy matrix composite, the influence of laser power and welding speed on the propert
The embedded atom method (EAM) was used to study the order-disorder transformation in -TiAl alloy with L10 structure at stoichiometrical composition, and the ef