Superparamagnetic liquid colloids

Compositions – Magnetic – Flaw detection or magnetic clutch

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252 6251, 252518, 252519, 252520, H01F 128, H01F 120

Patent

active

051475731

ABSTRACT:
Electrically-conductive superparamagnetic liquid colloids and methods for making and using them are described. The magnetic liquid colloids contain magnetic particles coated with conductive, organio-metallic compund, which impart the magnetic and conductive characteristics to the fluid. The coated magnetic particles are dispersed in a carrier fluid that gives the fluid viscosity, flow and vapor pressure properties.

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