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7-Mar-2007，DENVER, CO Although it was discovered more than 20 years ago, a particular type of high-temperature (Tc) superconductor ?material that conducts electricity with almost zero resistance ?is r...
COMPARATIVE ANALYSIS OF THE BEHAVIOR OF COAXIAL AND FRONTAL COUPLINGS – WITH PERMANENT MAGNETS – IN HIGH TEMPERATURE ENVIRONMENTS
permanent magnets permanent magnet couplings
2010/1/12
This paper presents a comparative analysis of the behavior of coaxial and frontal couplings – with permanent magnets – in high temperature environments specific to iron and steel industry. The compara...
THE BEHAVIOR OF ASYMMETRIC FRONTAL COUPLINGS WITH PERMANENT MAGNETS IN MAGNETIC POWDER AND HIGH TEMPERATURE ENVIRONMENTS
permanent magnets permanent magnet couplings
2010/1/12
The main purpose of this paper is the comparative analysis of the behavior of
frontal couplings with Nd-Fe-B permanent magnets in difficult environments, specific
to metallurgy–such as environments ...
GaN based FET devices represent at present the solid state power sources of highest microwave output power. Their materials structure and technology is briefly reviewed and their mitations and problem...
High-Temperature Superconductors and Related Compounds Studied by Mössbauer Spectroscopy
High-Temperature Superconductors Mö ssbauer Spectroscopy
2010/12/15
57Fe, 119Sn, and 151Eu Mössbauer spectroscopy was used to study the chemical structure, phonon mode changes, and low-temperature phase transformation around the Tc as well as suppression of super...
High Temperature Oxidized SnO2 Films Prepared by Reactive Sputtering
d.c. reactive ion an argon atmosphere oxygen partial pressures
2010/12/21
Undoped and Sb-doped tin oxide films were prepared by d.c. reactive ion sputtering in an argon atmosphere with oxygen partial pressures ranging from 0 to 50%. The films were anneled in oxygen in the t...