James J. Haycraft

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The acoustic phonons of the epsilon polymorph of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo [5.5.0.0(5,9).0(3,11)] dodecane (epsilon-CL-20) have been studied using Brillouin scattering spectroscopy. Analysis of the acoustic phonon velocities allowed determination of the complete stiffness tensor for this energetic material. The results are(More)
The acoustic phonons of cyclotrimethylene trinitramine (RDX) have been studied using Brillouin scattering. The analysis of the acoustic-phonon velocities allowed determination of the complete stiffness tensor for this energetic material. The results are compared to other recent experimental and theoretical determinations of the RDX elastic constants, bulk(More)
The Langmuir films of a series of triphenylsilyl ether (TPSE)-terminated amphiphiles were investigated in order to explore the bulge amphiphile model developed by Haycraft et al. [Thin Solid Films, 515 (2007) 2990]. The TPSE series was examined using surface pressure–surface area isotherms over a range of temperatures (287–298 K) with simultaneous(More)
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