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The indices of refraction of glass laser hosts may be varied between approximately 1.5 and 2.0, and both the temperature coefficient of n and the strain-optical coefficient may be tailored by altering the chemical composition. Glasses have lower thermal conductivities than the alumina or YAG, however, which imposes limitations on their use in ...
The Journal of the American Ceramic Society is a monthly peer-reviewed scientific journal published on behalf of the American Ceramic Society by Wiley-Blackwell. It was established in 1918 and is edited by John C. Mauro. Publishing formats include full length original research, communications (rapid publishing), feature articles, and review ...
James Charles Phillips (born March 9, 1933) is an American physicist and a member of the National Academy of Sciences (1978). Phillips invented the exact theory of the ionicity of chemical bonding in semiconductors, as well as new theories of compacted networks (including glasses, high temperature superconductors, and proteins).
The Journal of the European Ceramic Society is a monthly peer-reviewed scientific journal published by Elsevier on behalf of the European Ceramic Society.It covers research related to conventional categories of ceramic: structural, functional, traditional or composite.
Rigidity theory, or topological constraint theory, is a tool for predicting properties of complex networks (such as glasses) based on their composition.It was introduced by James Charles Phillips in 1979 [1] and 1981, [2] and refined by Michael Thorpe in 1983. [3]
The fundamental unit within a geopolymer structure is a tetrahedral complex consisting of silicon or aluminum coordinated through covalent bonds to four oxygens. The geopolymer framework results from the cross-linking between these tetrahedra, which leads to a 3-dimensional aluminosilicate network, where the negative charge associated with tetrahedral aluminium is balanced by a small cationic ...
Figure 1. An UHTC strake composed of three different sections with different UHTC compositions. [4]Beginning in the early 1960s, demand for high-temperature materials by the nascent aerospace industry prompted the United States Air Force Materials Laboratory to begin funding the development of a new class of materials that could withstand the environment of proposed hypersonic vehicles such as ...
The Curtiss SOC Seagull was an American single-engined scout observation seaplane, designed by Alexander Solla of the Curtiss-Wright Corporation for the United States Navy. The aircraft served on battleships and cruisers in a seaplane configuration, being launched by catapult and recovered from a sea landing.