Previous work has shown the formation of solid particles into thin walls of specified shape using a resonant acoustic field in microgravity. Here these results are summarized, and extended to study the qualitative effects of liquid addition and melting/ solidification in the acoustic field. Pure liquid forms into sheets, even in the 1-g environment, due to the static pressure differences in the resonant chamber; however these sheets exhibit instabilities, and shatter into droplets. Stable thin walls are formed from liquid with suspended powder in 1-g. With some adjustment of the frequency, the use of processes involving heating, cooling and phase changes are seen to be feasible. The implications of these findings to non-contact manufacturing and construction in space are discussed.
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