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Showing 1 to 6 of 6 for “"R3m"”.
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Modeling and Prediction of Amorphous Solid Dispersion Formation Using a Molecular Descriptor
… Specifically, the molecular descriptor R3m was investigated as a tool for the prediction of ASD formation. The work presented herein addresses 3 primary aims: (1) investigating the statistical validity of the model by expanding the model to include 2 preparation methods and 2 …
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Lithium intercalation reactions with transition metal oxides
… to either a trigonal unit cell (space group R3m) with a=2.830(1)Å and c=l3.875(8) Å, or to a face-centred cubic unit cell (space group Fd3m) with a=8.002(1)A. The near-cubic symmetry is maintained on delithiation. Neutron and X-ray powder diffraction refinement of the LT-LiCoO₂ sample has …
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The effects of small molecules and polymer on the phase behaviour of C16EO16 - water mixture
… and ultimately phase separation. The Mh i (R3m) phase is destabilised at low oil concentrations because the interlayer interaction is destabilised by the swelling of the alkyl chain region and the changing water layer thickness. The Mh1(0) phase has a wider range than the Mh1(R3m) phase, but …
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Ultra-lightweight nanorelief networks : photopatterned microframes
… SU8 polymer films and 3D four-beam connected (3- R3m ) and octagonal quasicrystalline SU8 films were fabricated and analyzed in this thesis. For investigating the mechanical properties of various nano-network structures, three different methods of mechanical characterization were applied. Atomic …
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Intermediate phases of surfactant - water mixtures
… mesh phase with the space group symmetry R3m, and model calculations show this phase to consist of hexagonally arranged pores in a surfactant bilayer. The formation of this phase is driven by the need to introduce curvature into the interface as the temperature decreases and hydration of …
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The Effects of Strain and Vacancies on the Electric and Vibrational Properties of Ferroelectric BaTiO3 from First-principles
… behaviors of polarization in rhombohedral (R3m) BaTiO3 (BTO) that do not conform with intuition, or the current state of known behavior of epitaxially strained BTO. These studies reveal a polarization that increases with tensile strain, instead of compressive strain, and a polarization that …