Scanning dilatometry and calorimetry of p-alkyl-p'-cyano-cyclohexyl-cyclohexanes

Grasso, Domenico; Fasone, Salvatore; Pasquale, Giovanni Di; Castelli, Francesco

doi:10.1016/0040-6031(89)87281-8

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…where T 0 m , ∆V N →SB and ∆H are the phase transition temperature at atmospheric pressure, the molar volume change on transition and the molar latent heat of fusion, respectively. From the relevant material parameters of CCH3, namely T 0 m = 329.45 K [36], m = 233 (molar mass), ρ = 895.4 kg/m 3 (density at 80.6 • C [48]), ∆H = 6247 J/mol, ∆V N →SB /V = −2.6 %, and α N = 25 × 10 −4 1/K (volumetric expansion coefficient in the nematic phase [49]) one obtains dTm dp = 0.033 K/bar in excellent agreement with the experimental value.…”

Section: Appendix A: Pressure Dependence Of the Phase Transition Temp...mentioning

confidence: 99%

Regular dendritic patterns induced by nonlocal time-periodic forcing

et al. 2000

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The dynamic response of dendritic solidification to spatially homogeneous time-periodic forcing has been studied. Phase-field calculations performed in two dimensions (2D) and experiments on thin (quasi-2D) liquid-crystal layers show that the frequency of dendritic side branching can be tuned by oscillatory pressure or heating. The sensitivity of this phenomenon to the relevant parameters, the frequency and amplitude of the modulation, the initial undercooling and the anisotropies of the interfacial free energy, and molecule attachment kinetics, has been explored. It has been demonstrated that in addition the side-branching mode synchronous with external forcing as emerging from the linear Wentzel-Kramers-Brillouin analysis, modes that oscillate with higher harmonic frequencies are also present with perceptible amplitudes.

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Section: Appendix A: Pressure Dependence Of the Phase Transition Temp...mentioning

confidence: 99%