Materials Literature
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The behavior of solids can be represented by a variety of continuum theories. For example, Cosserat elasticity allows the points in the continuum to rotate as well as translate, and the continuum supports couple per unit area as well as force per unit area. We examine experimental methods for determining the six Cosse…
Powder X-ray diffraction, 29Si and 129Xe NMR spectroscopy of MCM-41 show that the long-range structural order and textural uniformity of the mesoporous molecular sieve are markedly improved due to a shift in the reaction equilibrium when acetic acid is repeatedly added during the conversion of sodium silicate and NMe3…
The systematic fabrication of organized materials will require the ‘synthesis-with-construction’ of architectures over scales ranging from the molecular to the macroscopic. This article describes four key constructional processes of biomineralization (supramolecular preorganization, interfacial molecular recognition,…
Some of the current directions in research on conducting and superconducting charge-transfer salts based upon tetrathiafulvalene (TTF)π-electron donor molecules are reviewed. Particular emphasis is placed upon new donor molecules, which have been studied with the aim of increasing the dimensionality in the solid state…
The investigation of copper for use as an interconnection metal in the ultra large-scale integration (ULSI) era of silicon integrated circuits has accelerated in the past several years. The obvious advantages for using copper to replace currently used Al are related to its lower resistivity (1.7 μΩ-cm vs. 2.7 μω-cm fo…