Appearance of thermochemical emf in some conducting materials

Journal Article · Sun May 01 00:00:00 EDT 1983 · Combust., Explos. Shock Waves (Engl. Transl.); (United States)

OSTI ID:6673427

Petrov, Y S; Maslikhov, V V; Shcheglov, V D

The appearance of an emf in conductors when they are heated is described by the Seebeck and Thompson effects. If some part of the surface of a conductor is covered by a pyrotechnical material and ignited, then while the pyrotechnical material is burning and after it has burned, an emf arises at the ends of the conductor. The direction of the emf depends on the location of maximum temperature of the heated section of the conductor. If the heating is terminated for some time and started up again, then the emf and current appear again, with no necessity for re-application of the pyrotechnical material. Conductors of Nichrome, Constantan and tungsten, as well as graphite rods were studied with small sections of the conductors covered with lead azide, black gunpowder, or match-head composition. The current ranged from -5 to 6 microamps, and the emf from -0.4 to 1 millivolt. The effects described can be used to convert thermal energy into electrical energy in sensors, etc.

• Research Organization: Ordzhonikidze
• OSTI ID: 6673427
• Journal Information: Combust., Explos. Shock Waves (Engl. Transl.); (United States), Vol. 18:6; Other Information: Trans. from Fizika Goreniya i Vzryva, Vol. 18, No. 6, pp. 58-59, Nov 1982
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
CHEMICAL EXPLOSIVES
THERMOELECTRIC PROPERTIES
CONSTANTAN
GRAPHITE
NICHROME
TUNGSTEN
AZIDES
CHEMICAL PROPERTIES
ELECTRIC CONDUCTORS
ELECTRIC CURRENTS
ELECTROMOTIVE FORCE
LEAD COMPOUNDS
POLARIZATION
SEEBECK EFFECT
TEMPERATURE EFFECTS
ALLOYS
CARBON
CHROMIUM ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
CURRENTS
ELECTRICAL PROPERTIES
ELEMENTAL MINERALS
ELEMENTS
EXPLOSIVES
METALS
MINERALS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NITROGEN COMPOUNDS
NONMETALS
PHYSICAL PROPERTIES
TRANSITION ELEMENTS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry
360104 - Metals & Alloys- Physical Properties
360603 - Materials- Properties