No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Development of flexible, free-standing, thin films for additive manufacturing and localized energy generation
2.G.N. Howatt, US Pat. 2,582,993 (1952).
3.W. Gyurk, US Pat. 3,192,086 (1965).
4.B.B. Mathewson, W.S. Newman, A.H. Heuer, and J.D. Cawley, in Solid Free. Fabr. Symp. Proceddings (1995), pp. 253–260.
11.J. Erickson, J. Sandstrom, and G. Johnston, U.S. Pat. 1 (2012).
12.D. Naud, M. Hiskey, and S. Son, J. Pyrotech. 17 (2003).
13.T. Brinck, Green Energetic Materials (2014).
14.G.P. Dixon, Investigation of Metastable Interstitial Composite (MIC) Materials for Electrically Initiated Lead Free Primers (China Lake, California, 2004).
15.S. Fischer and M. Grubelich, Int. Pyrotech. Semin. (1998).
17.K.C. Walter, D.R. Pesiri, and D.E. Wilson, J. Propuls. Power (2007).
18.S. Kleinberg and J.F. Tompkins, The Compatibity of Various Metals with Liquid Flourine (Alexandria, VA, 1967).
19.H.W. Schmidt, HANDLING AND USE Of FLUORINE AND FLOURINE-OXYGEN MIXTURES IN ROCKET SYSTEMS (Washington D.C, 1967).
20.R.E. Anderson, Fluorine Systems Handbook, Section VI, Dynamic Compatibility of Fluorine With Metals (Springfield, VA, 1975).
27.G.K. Williams and S.P. Burns, U.S. Pat. 7,094,296B1 (2006).
28.M.W. Chase, NIST-JANAF Thermochemical Tables, 4th ed. (NIST, Washington D.C, 1998).
Article metrics loading...
Film energetics are becoming increasingly popular because a variety of technologies are driving a need for localized energy generation in a stable, safe and flexible form. Aluminum
(Al) and molybdenum trioxide (MoO3) composites were mixed into a silicon binder and extruded using a blade casting technique to form flexible free-standing films ideal for localized energy generation. Since this material can be extruded onto a surface it is well suited to additive manufacturing applications. This study examines the influence of 0-35% by mass potassium perchlorate (KClO4) additive on the combustion behavior of these energetic films. Without KClO4 the film exhibits thermal instabilities that produce unsteady energy propagation upon reaction. All films were cast at a thickness of 1 mm with constant volume percent solids to ensure consistent rheological properties. The films were ignited and flame propagation was measured. The results show that as the mass percent KClO4 increased, the flame speed increased and peaked at 0.43 cm/s and 30 wt% KClO4. Thermochemical equilibrium simulations show that the heat of combustion increases with increasing KClO4 concentration up to a maximum at 20 wt% when the heat of combustion plateaus, indicating that the increased chemical energy liberated by the additional KClO4 promotes stable energy propagation. Differential scanning calorimeter and thermogravimetric analysis show that the silicone binder participates as a fuel and reacts with KClO4 adding energy to the reaction and promoting propagation.
Full text loading...
Most read this month