Abstract
The influence of mechanical shocks on a gas cylinder, one of the critical components in a gas distribution system, was evaluated with respect to particle generation. An experimental technique was developed for applying impact shocks and for simultaneous measurements of the shock intensity, the corresponding particle concentration and size distribution. It was found that a significant amount of submicron particles could be generated by impact shocks on the order of 103 g. The particle size distribution based on number concentration indicated a peak around 0.1 μm. It is further shown that data reported here might correspond to ppb-ppm resuspension. It implies that allowable shock intensity for today’s high-purity gas distribution systems should be defined based on an extremely low level of resuspension, whereas classical adhesion theory and experiments are based on 50% removal.
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Wang, HC., Wen, HY., Kasper, G. (1990). Particle Release from Surfaces by Mechanical Shocks. In: Mittal, K.L. (eds) Particles in Gases and Liquids 2. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-3544-1_12
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DOI: https://doi.org/10.1007/978-1-4899-3544-1_12
Publisher Name: Springer, Boston, MA
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