Electron microscopy of size distribution and growth of small zinc crystals formed by homogeneous nucleation in a flowing inert-gas system
- 1 February 1974
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 45 (2), 596-602
- https://doi.org/10.1063/1.1663290
Abstract
Homogeneous nucleation of small Zn particles has been observed in a flowing inert‐gas system. Zn vapor was produced by heating the bulk metal near 700 K in flowing N2 at pressures near 15 Torr. Nucleation of small Zn particles took place in a cooler region downstream from the furnace. Cooling occurred by gas conduction to room‐temperature walls. Particle sizes measured by electron microscopy were from 5 to 5000 nm. Samples were obtained with varying metal temperature, gas flow rate, pressure, and position in the collection chamber. Particles grew with time and had a predominant shape characterized as a regular hexagonal prism.Keywords
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