Results 311 to 320 of about 219,893 (351)

Annealing in spin glasses

Journal of Magnetism and Magnetic Materials, 1980
Abstract It is suggested that the magnetic atoms of a spin glass are not randomly distributed in the lattice and may even migrate below the freezing temperature. This can explain why scaling is incorrect and also explains magnetic remanence.
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Nonlinear Annealing of Glass

Journal of the American Ceramic Society, 1981
Transient as well as residual stresses were measured in laboratory experiments on annealing by nonlinear cooling schedules. The data on transient stresses, in particular, were incompatible with a classical view of annealing but they could be explained by a more recent model of annealing, in which account is taken of structural as well as stress ...
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The identification of toughened glass by annealing

Forensic Science International, 1982
Abstract An annealing routine was devised that produced RI changes in various glasses. When applied to 40 window, 20 non-window and 25 toughened windscreen glasses the toughened material could be distinguished from the other types. This procedure could improve the evidential value of glass for ‘hit and run’ accidents.
D.G. Sanger, J. Locke, Gaytri Roopnarine
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Annealing and tempering of glass

Journal of Non-Crystalline Solids, 1990
Abstract The main contributions to the theories and modeling of annealing and thermal tempering of glass are described in chronological order. The bases of several interesting annealing processes are mentioned. Finally, an assessment is made of the state of progress in the use of numerical methods for modeling tempering and annealing processes.
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Laser annealing of phosphosilicate glass

Journal of Vacuum Science and Technology, 1981
Laser annealing of CVD layers of phosphosilicate glass (PSG) using a CO2 laser (10.6 μm wavelength) has been investigated. Evidence of plastic flow of the PSG caused by laser heating was obtained. Reduction of surface and bulk defects in the PSG layers was ascertained by measurement of scattering losses, before and after annealing, of He–Ne radiation ...
J. T. Boyd, A. Naumaan
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Fine Annealing of Optical Glass

Journal of the American Ceramic Society, 1954
Since the most important characteristic of optical glass is the uniformity of its refractive index, which is itself a function of fictive temperature, any fine annealing treatment must be such as to bring about substantial uniformity in fictive temperature. Methods of accomplishing this are reviewed.
H. N. Ritland, Howard R. Lillie
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ELECTRIC ANNEALING OF GLASS*

Journal of the American Ceramic Society, 1932
ABSTRACTThe total and distribution heat requirements are discussed in general as well as the manner in which electric leers economically meet these requirements based on actual determinations and calculations.
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The optimum temperature for annealing glass

Glass and Ceramics, 1968
Fig. 2. Time to es tablish the equilibrium viscosi ty at var ious tempera tures . Fig. 1. The p rocess of s t ructura l reorganizat ion, c h a r a c t e r ized by the absence of elongation of the specimen with an inc r ease in tempera ture , occurs in this case, at above 400 ~ .
M. V. Okhotin, T. D. Andryukhina
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Impact Resistance of Annealed Glass Panels

Journal of Performance of Constructed Facilities, 2011
Annealed glass is by far the most commonly used glazing material in building construction. The resistant properties of glazing panels to wind loading has been studied for a long time based on quasistatic modeling. More recently, the vulnerability of infrastructure and its protection against acts of terrorism has been receiving a great deal of attention,
Lam, Nelson T. K., Gad, Emad F., Nurhuda, Ilham, Calderone, Ignatius   +3 more
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The annealing of glass as a physical problem

Journal of the Franklin Institute, 1933
Abstract The fundamental principles underlying the annealing of glass and the present state of knowledge concerning changes in the nature of glass during heating and cooling are briefly reviewed. Emphasis is placed on the fact that a quantitative explanation of the formation and removal of strain in glass, and a precise determination of the requisite
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