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Heuristic modeling of thermally sprayed powder splat characteristics

Conference ·
OSTI ID:377762
A simple heuristic model was implemented to calculate, a posteriori, several splat geometrical characteristics, as well as to estimate some particle behaviors before the impact on a flat substrate. This model is based on statistical transfer functions, which permit to establish relationships between observed splats and the initial sprayed powder particles (in terms of fraction of powder used to build the deposit, of velocity before the impact, etc.). Using Taguchi experimental designs, the effects of the processing spray parameters on the aforementioned characteristics and behaviors were determined and are discussed in this paper. Such a low cost and low time consuming approach could be easily implemented on an industrial basis, and could permit to define, for example, required characteristics for the sprayed powder (i.e., particle size distribution) in view of increasing the deposition efficiency and the deposit quality.
OSTI ID:
377762
Report Number(s):
CONF-9509182--; ISBN 0-87170-541-9
Country of Publication:
United States
Language:
English