• Oxidation during out of chamber DED Ti6242 occurs concurrently in the liquid and solid state. Oxygen species reverse Marangoni force, causing centripetal flow, deepening molten pool assisting pore escape. can promote formation tetra modal α phase microstructure Ti6242. The α-phase alloy is more resistant to oxygen diffusion than Ti-6Al-4 V as SiO 2 inhibits TiO formation. New DED-AM industria...

Deposition rates, wet etch rates, and thickness uniformity experiments were performed using O3/TEOS thermal chemical-vapor deposition. Our results for oxide deposition show optimum process window around 200 Torr for producing films of good quality ~uniformity and material properties!. This is in excellent agreement with the modeling predictions over a broad range of pressure ~100–600 Torr! and ...

The photocurrent enhancement effect caused by Au and Ag nanoparticles for GaAs-based photovoltaic structures of surface barrier or p-n junction type with microtextured interfaces has been investigated in dependence on the conditions of nanoparticles deposition and, respectively, on the shape and local dielectric environment of obtained nanoparticle arrays. Three nanoparticle deposition methods ...

To evaluate the effects of lung disease on deposition of inhaled ultrafine particles (less than 0.1 micron diameter), we measured total respiratory tract deposition of nonhygroscopic particles of 0.02 to 0.24 micron in five subjects with obstructive lung disease and three subjects with restrictive lung disease and compared it with that in ten normal subjects. Deposition was measured as concentr...

the purpose of this study was to investigate the deposition of the hydroxyapatite (ha) coating via the electrophoresis procedure. the ha deposition was performed in an ethanol, methanol, acetone and isopropanol suspension. methanol was found to be the best deposition media. among the different environmental conditions, including the encapsulation of the samples under two vacuum types of pressur...

Safe and low-cost zinc-based flow batteries offer great promise for grid-scale energy storage, which is the key to widespread adoption of renewable energies. However, advancement in this technology considerably hindered by notorious zinc dendrite formation that results low Coulombic efficiencies, fast capacity decay, even short circuits. In review, we first discuss fundamental mechanisms identi...