Materials Literature
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An electrically controllable diffraction mode in liquid crystals is described. The variable grating is a stable single layer of small uniform birefringent spherulitic domains imbedded in a homeotropic matrix. The size of the domains is changed by small dc or ac voltages.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformational Characteristics of the Poly(n-alkyl isocyanates)Alan E. TonelliCite this: Macromolecules 1974, 7, 5, 628–631Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue 1 September 1974https://doi.org/10.1021/ma6004…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSilane reductions in acidic media. III. Reductions of aldehydes and ketones to alcohols and alcohol derivatives. General syntheses of alcohols, symmetrical ethers, carboxylate esters and acetamidesMichael P. Doyle, Donald J. DeBruyn, Stephen J. Donnelly, Dale A. Kooistra, Ab…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray photoelectron spectroscopy of some aluminosilicatesP. R. Anderson and W. E. SwartzCite this: Inorg. Chem. 1974, 13, 9, 2293–2294Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue 1 September 1974https://pubs.acs.or…
The nonlinear oscillations of a spherical gas bubble in an incompressible, viscous liquid subject to the action of a sound field are investigated by means of an asymptotic method. Approximate analytical solutions for the steady-state oscillations are presented for the fundamental mode, for the first and second subharm…
Hot-stage electron microscopy is used to study the annealing behaviour of lattice dislocations in high-angle grain boundaries in Ni, Ni 5% Al, austenitic stainless steel and Al 0·9 % Mg. The observations indicate that individual dislocations are incorporated in a boundary by a spreading of their cores or a dissociatio…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopic studies and bonding model for nitric oxide complexes of iron porphyrinsB. B. Wayland and Larry W. OlsonCite this: J. Am. Chem. Soc. 1974, 96, 19, 6037–6041Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue…
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The phase transformation and magnetic properties of manganese bismuthide have been reinvestigated with single crystal samples of low temperature phase (LTP) and high temperature phase (HTP) in the quenched state (QHTP). It was established that the LTP and HTP are separate compounds with the chemical formulae MnBi and…
The nuclear magnetic resonance (NMR) of ${\mathrm{V}}^{51}$ has been studied in the series of compounds ${\mathrm{V}}_{1\ensuremath{-}x}{\mathrm{Cr}}_{x}{\mathrm{O}}_{2}$ between 100 and 350 K. Three insulating phases are clearly distinguished. In the low-temperature ${M}_{1}$ phase only one V site is seen with a posi…