Aging treatment promoted the precipitation of finely distributed particles corresponding to intermetallic ... Cu-Sn based alloys were manufactured by gas atomization spray casting route in order to achieve a fine
However, it is possible to synthesize homogeneous multi-component powders with fine particle diameter ... Generally, phosphorescent phosphors synthesized by conventional solid state reaction show a micro-sized particle
The crystalline size of Cu obtained became fine as the temperature increase, whereas the aggregation ... degree of particles was increased with the reaction time. ... The average particle size was about 한국분말야금학회 한국분말야금학회지 안종관, 김동진, 이익규, 이재령, 양환진
And the synthesized FePt nanoparticles were very fine and spherical shape with a narrow size distribution ... The average particle size of the powder tended to increase from 5 nm to 10 nm with increasing reaction ... fabricated by chemical vapor condensation process without a post-annealing process which causes severe particle
The as atomized alloy powders consisted of fine grains less than 4 in diameter, and the second particles ... On the other hand, lower rate of 20 K/min induced a formation of particles, resulting in strengthening
weanling Sprague Dawley rats were used to evaluate the effect of dietary rice starch with different particle ... Rats fed ultra finely pulverized rice starch for 3 weeks grew faster than rats fed rice starch. ... There were two dietary treatment: rice starch (RS), ultra finely pulverized rice starch with less than
However, the size of fine pores in the internal walls of large pores decreased with increase in sinteringtemperature ... In order to fabricate the porous Al₂O₃ with dispersion of nano-sized Cu particles, freeze-drying of ... It was shown that Cu particles with the size of 100 nm were homogeneously dispersed on the surfaces ofthe
The proportion of fine particle (-325 mesh) was decreased with increasing reduction temperature. ... The total charge passed through external circuit and average particle size (FSSS) were increased with ... Considering the charge, impurities, morphology, particle size and yield, an reduction temperature of
The proportion of fine particle(-325mesh) was decreased with increasing amount of sodium excess. ... The total charge passed through external circuit and average particle size(FSSS) were increased with ... Considering the impurities, charge, morphology, particle size and yield, an amount of sodium excess of
Well-crystallized particles, which are formed after heat treatment at 900 oC for 16 h, exhibit a fine ... and homogeneous morphology with particle sizes of 2-5 μm. ... Under excitation at 980 nm, the Pb0.7MoO4: Er0.1Yb0.2 and Pb0.5MoO4:Er0.05Yb0.45 particles exhibit a
particles. ... The alloys fabricated by complex forming method showed very fine microstructure when compared with the ... powders milled in air had the superior mechanical properties due to the suppression of and formation of fine
If the surface of substrate would be scrubbed strongly with iron metals, then finely sticked iron particles ... If the surface of substrate would be scrubbed strongly with iron metals, then finely sticked iron particles
Ultra-fine TiC/Co composite powder was synthesized by the carbothermal reduction process without wet ... The synthesized TiC/Co composite powder at 1300 for 9 hours has particle size of under about 0.4 m. ... The changes in the phase, mass and particle size of the mixture during heat treatment were investigated
nanoparticles distributed in copper matrix move, agglomerate and form a interpenetrating phase composite with a fine-grained ... Subsequent mechanical treatment of the product of SHS reaction allowed the particles to be reduced down ... The size of particles in the product of SHS reaction decreases with time of preliminary mechanical treatment
of particle to the outside. ... This experiment did comparison and analysis that protected soil particle migration have affect on function ... Results obtained are as follows: 1.High water head makes to be much movement of fine sand and out flow
Back-scattered electron images showed the formation of pure fine Ag particles instead of a uniform and ... To achieve the fabrication of high-quality Ag-coated Cu particles through a wet chemical process, we ... pretreatment conditions using an ammonium-based mixed solvent for the removal of a Cu2O layer on Cu particles