TY - JOUR
T1 - Effect of a superhydrophobic coating on the combustion of aluminium and iron oxide nanothermites
AU - Nixon, Eric
AU - Pantoya, Michelle L.
AU - Sivakumar, Ganapathy
AU - Vijayasai, Ashwin
AU - Dallas, Tim
N1 - Funding Information:
Authors E. Nixon and M. Pantoya acknowledge continued support and helpful discussion with Dr. Ralph Anthenien, ARO contract number W911NF0410217 . Authors T. Dallas, G. Sivakumar, and A. Vijayasai acknowledge the support from the National Science Foundation ( CBET #0821162 ); SEM/TEM imaging provided by Charles Linch, Texas Tech University Health Sciences Center Imaging Center; AFM imaging facility provided by Dr. Brandon Weeks, Texas Tech University, Chemical Engineering.
PY - 2011/8/25
Y1 - 2011/8/25
N2 - There is an interest in broadening the range of applications of nanoenergetic composite materials to include their combustion and energy generation in submerged environments. Currently, their use is primarily limited to gas environments. Oceanic power generation, underwater ordnance, propulsion, metal cutting, and torch technologies are examples of applications that would significantly benefit from nanocomposite energetic materials. Recent research on superhydrophobic coatings has made it possible to coat nanoenergetic samples using a vapor-phase deposition process which significantly reduces the detrimental effects of water entering the composite that can occur during wet-chemistry based superhydrophobic processes. In this work, we discuss the process utilized to produce the superhydrophobic coating on nanoenergetic materials. We then analyze the bubble energy produced and compare this value to other energetic formulations. It was found that the ratio of the bubble energy to the total energy of combustion was an order of magnitude higher for the superhydrophobic coated materials compared to energetic composites containing a hydrophobic binder.
AB - There is an interest in broadening the range of applications of nanoenergetic composite materials to include their combustion and energy generation in submerged environments. Currently, their use is primarily limited to gas environments. Oceanic power generation, underwater ordnance, propulsion, metal cutting, and torch technologies are examples of applications that would significantly benefit from nanocomposite energetic materials. Recent research on superhydrophobic coatings has made it possible to coat nanoenergetic samples using a vapor-phase deposition process which significantly reduces the detrimental effects of water entering the composite that can occur during wet-chemistry based superhydrophobic processes. In this work, we discuss the process utilized to produce the superhydrophobic coating on nanoenergetic materials. We then analyze the bubble energy produced and compare this value to other energetic formulations. It was found that the ratio of the bubble energy to the total energy of combustion was an order of magnitude higher for the superhydrophobic coated materials compared to energetic composites containing a hydrophobic binder.
KW - Combustion
KW - Nanoenergetic
KW - Submerged reactions
KW - Superhydrophobic coating
KW - Thermite
UR - http://www.scopus.com/inward/record.url?scp=79959532179&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2011.05.014
DO - 10.1016/j.surfcoat.2011.05.014
M3 - Article
AN - SCOPUS:79959532179
SN - 0257-8972
VL - 205
SP - 5103
EP - 5108
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
IS - 21-22
ER -