Results 131 to 140 of about 5,180 (181)

Alumina Substructure and Electrical Conductivity in Vitreous Silica

Journal of the American Ceramic Society, 1984
A network of alumina cells that remains after a vitreous silica sphere is heated in hydrogen supports the suggestion that alumina and associated sodium and lithium ions in vitreous silica are nonuniformly distributed. This distribution explains the anomalously large diffusion coefficient and electrical mobility of these alkali ions
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Electrical conduction in the vitreous and crystallized Li2O–V2O5–P2O5 system

Solid State Ionics, 2010
Abstract The glass-forming region of the Li 2 O–V 2 O 5 –P 2 O 5 system was examined. The glass transition temperature and stability of glass were enhanced with increasing P 2 O 5 content. Li 2 O–V 2 O 5 –P 2 O 5 glasses show electronic or ionic conduction depending on the glass composition.
Haruyuki Takahashi, Takeshi Karasawa, Takashi Sakuma, Jerzy E. Garbarczyk   +3 more
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Characterization of retinal tissue and vitreous humor with Electrical Impedance Spectroscopy

2017 8th International IEEE/EMBS Conference on Neural Engineering (NER), 2017
Electrical impedance spectroscopy is used to study the retina and the vitreous humor which can help in designing retinal stimulation experiments. Electrical stimulation of retina is done to artificially stimulate retinal neurons for restoring vision in blind patients. The stimulus is given through microelectrodes which are placed over the retina. Since
Satarupa Biswas, Debanjan Das, Manjunatha Mahadevappa, Soumen Das   +3 more
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VITREOUS ENAMELING WITH ELECTRIC HEAT ¹

Journal of the American Ceramic Society, 1923
ABSTRACT This paper is descriptive of the suitability of the metallic resistor furnace for the application of vitreous enamels. Comparisons are made with fuel fired furnaces. Uniformity and perfect fusion of enamel results from the high grade temperature control of the electric furnace. Atmospheres vitiated with products of combustion
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Electrical and Photoelectric Properties of Modified Chalcogenide Vitreous Semiconductors

1985
For a long time after the discovery of chalcogenide vitreous semi-conductors (ChVS) [1,2], it was believed that, unlike crystalline semiconductors, ChVS are practically insensitive to doping with various impurities, i.e., that extrinsic conductivity does not appear [3–5].
B. T. Kolomiets, V. L. Averyanov
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Electric conduction of composite titanium-containing coatings on vitreous enamel substrates

Glass and Ceramics, 1999
It is demonstrated that the main factor determining the high conductivity of heat-treated titanium-bearing phosphate coatings is the decrease in the resistivity of oxide films on the surface of titanium particles.
E. V. Shinkareva, V. V. Tavgen’
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AN ELECTRIC FURNACE FOR VITREOUS ENAMELING ¹

Journal of the American Ceramic Society, 1923
ABSTRACT An electric furnace for vitreous enameling built with round wire coils placed in top, bottom and both sides. The furnace is equipped with a double loading fork and some cost data are given.
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Origin of the electrical activity of iron atoms in vitreous arsenic selenide

Glass Physics and Chemistry, 2016
Iron atoms in vitreous arsenic selenide films form single electron donor centers, while the Fermi level shifts from the middle of the band gap to the bottom of the conduction band with an increase in the iron concentration due to the filling of single electron states of the acceptor type located below the Fermi level.
A. V. Marchenko, T. Yu. Rabchanova, P. P. Seregin, A. B. Zharkoi, K. U. Bobokhuzhaev   +4 more
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Electrical Conductivity in the Vitreous Selenium-Arsenic System

1971
Difficulties in the physical interpretation of the electron conductivity of amorphous materials prompted A. F. Ioffe and other workers to put forward short-range order and the associated chemical bonding as the most important factors determining the nature of semiconductors [1–7]. Investigations of liquid [8–10] and vitreous [11–13] semiconductors have
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Space-Charge-Limited Currents and High Electric Field Effect in Vitreous Selenium Films

physica status solidi (b), 1968
AbstractFor vitreous selenium films, from 5 to 57 μm in thickness, dark steady‐state current—voltage characteristics are measured between 1 and 103V. The currents proportional to U2 d−3 can be interpreted in terms of space‐charge‐limited currents (SCLC) with a single trap level.
J. Viscakas, P. Mackus, A. Smilg
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