Effect Of Boron Concentration Research Articles

Effects of boron concentration upon oxygen precipitation in CZ silicon

Effects of boron concentration upon oxygen precipitation were studied in Czochralski (CZ) silicon annealed from 2 to 128 h between 450 and 1050°C. In this ivestigation Bragg line profile (BLP), high resolution diffuse X-ray scattering (DXS) and transmission electron microscopy (TEM) were employed. The BLP and DXS data have shown that the nature of the predominant deffects depend upon annealing time and temperature, as well as, on dopant concentration. The long range displacement field of these defects, however, does not seem to be affected by these parameters. The TEM results have shown a dependence of precipitate growth kinetics, as well as, structure upon dopant concentration, and annealing temperature and time. Differences in oxide precipitate growth kinetics between lightly and heavily doped materials and a correlation between DXS parameters and TEM images are discussed.

Effect of Boron Concentration on Hole Capture Cross-Section at Vanadium Centers in Silicon

Effect of Boron Concentration on Hole Capture Cross-Section at Vanadium Centers in Silicon

Surface and grain-boundary energies of AISI 316 stainless steel in the presence of boron

The effect of boron concentration on the surface and grain-boundary energies of AISI 316 steel at temperatures in the range 950–1250°C has been examined. Four ingots were used with B contents of 0.001 and 0.006 or 0.0065 wt.-% and C contents of 0.12 and 0.05 or 0.06 wt.-%. The grain-boundary energies were decreased by 12–39% on increasing the B concentration but the effect on the surface energies was less clear. Grain-boundary grooves were formed by a surface diffusion process at 950–1150°C but no consistent effect of B on the diffusion coefficient was apparent.

Effect of Boron Concentration in the Nutrient Solution on the Soluble and Insoluble Nitrogen Fractions of Spinach1

Effect of Boron Concentration in the Nutrient Solution on the Soluble and Insoluble Nitrogen Fractions of Spinach¹