Particle formation paths in the synthesis of silicon nitride powder in a laser-heated aerosol reactor

The Self-Preserving Size Distribution Theory

“…The disturbance of the flame by the thermophoretic sampler is limited, shown by Kruis (7,25). The majority of particles on the grid are collected from the center of the flame.…”

Design of thermophoretic probe for precise particle sampling

“…Thermophoretic sampling was also applied to collect particles in a flickering flame (Zhang & Megaridis, 1998). Kruis, Oostra, Marijnissen, Schoonman, and Scarlett (1998) fabricated a thermophoretic sampling device consisting of a pneumatically controlled probe holding a small tube with a slide at the end whereon a rectangular TEM grid could be held with a small screw. In this way the TEM grid could be moved quickly through the flame.…”

Kinetics of Silicon Nitridation and the Formation Mechanism of α/β-Si3N4 at Atmospheric Pressure and 1410 °C

“…Silicon nitride (Si 3 N 4 ) ceramics are widely applied in industrial production because of their low density, good mechanical performance, and excellent thermal properties. − High-performance Si 3 N 4 ceramics are usually sintered from ultrafine silicon nitride powders that are commonly prepared through chemical vapor deposition, thermal decomposition of silicon diimide, or direct nitridation . Direct nitridation can produce a high proportion of α-Si 3 N 4 powder with good sintering performance and low cost. , The diffusion rate of nitrogen in silicon is independent of object thickness and is constant when nitrogen reflection is not considered .…”