Thermo-dielectric effect

The thermo-dielectric effect is the production of electric currents and charge separation during phase transition.

This interesting effect was discovered by Joaquim da Costa Ribeiro in 1944. The Brazilian physicist observed that solidification and melting of many dielectrics are accompanied by charge separation. A thermo-dielectric effect was demonstrated with carnauba wax, naphthalene and paraffin. Charge separation in ice was also expected. This effect was observed during water freezing period, electrical storm effects can be caused by this strange phenomenon. Effect was measured by many researches - Bernhard Gross, Armando Dias Tavares, Sergio Mascarenhas etc. César Lattes (co-discoverer of the pion) supposed that this was the only effect ever to be discovered entirely in Brasil.

References

Gross, B. (1954). "Theory of Thermodielectric effect". Physical Review. 94 (6): 1545–1551. Bibcode:1954PhRv...94.1545G. doi:10.1103/PhysRev.94.1545.
Saldaña, Juan José (2006). Science in Latin America: a history. ISBN 978-0-292-71271-3.

External links

Thermodielectric effect measurement

States of matter

State	Solid Liquid Gas / Vapor Plasma

Low energy	Bose–Einstein condensate Fermionic condensate Degenerate matter Quantum Hall Rydberg matter Strange matter Superfluid Supersolid Photonic matter

High energy	QCD matter Lattice QCD Quark–gluon plasma Supercritical fluid

Other states	Colloid Glass Liquid crystal Quantum spin liquid Magnetically ordered Antiferromagnet Ferrimagnet Ferromagnet String-net liquid Superglass

Transitions	Boiling Boiling point Condensation Critical line Critical point Crystallization Deposition Evaporation Flash evaporation Freezing Chemical ionization Ionization Lambda point Melting Melting point Recombination Regelation Saturated fluid Sublimation Supercooling Triple point Vaporization Vitrification

Quantities	Enthalpy of fusion Enthalpy of sublimation Enthalpy of vaporization Latent heat Latent internal energy Trouton's ratio Volatility

Concepts	Binodal Compressed fluid Cooling curve Equation of state Leidenfrost effect macroscopic quantum phenomena Mpemba effect Order and disorder (physics) Spinodal Superconductivity Superheated vapor Superheating Thermo-dielectric effect

Lists	List of states of matter

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