Long range order existence of a regular repeating

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Unformatted text preview: s within a Melting Temperature crystalline region temperature of a material. Energy and solid, as a function of temperature. tion The temporary displaceegative ions in the presence of an v tion in the analysis of composites the matrix are considered to be train levels. It is the result of a llel to the fibers. tion in the analysis of composites the matrix are considered to be tress. It is the result of a load v The energy required to remove an ed neutral atom. the same structure. When applied icating that the solid phase has hence complete solubility at every | luminescence Absorption of light or electromagnetic radiation at high frequencies with subsequent reradiation |at e-Text Main Menu | Textbook Table of Contents lower frequencies. machining A process by which excess material is removed by plastic shearing. magnetic domains Microscopic regions of a ferri- or ferromagnetic crystal in which all of the internal magnetic dipoles are aligned with one another. magnetic field strength H A measure of the intensity of the external magnetic field. absolute temperature of the system, usually reported in kelvins. Third, the preexponential term C and the activation energy Q are constants that are characteristic of any individual reaction, but their values change as the reaction changes (i.e., they are not universal constants). Fourth, the activation energy can be thought of as the amount of energy that must be supplied to the system in order for the reaction to proceed. For example, a block resting on the top of a staircase can lower its (potential) energy by moving to the bottom of the stairs. In order for this “reaction” to occur, however, the block must be given a push. The amount of energy required for this push can be envisioned as the activation energy for the process. The concept of activation energy is illustrated schematically in Figure 2.3–2. The units of Q are typically kilojoules per mole (kJ/mol). Fifth, from a Block position 1 Height of center of mass in position 1 Path of c...
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