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Producing Microthin Ferrite Cores

IP.com Disclosure Number: IPCOM000095380D
Original Publication Date: 1965-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Liberman, HE: AUTHOR [+2]

Abstract

In this ferrite core structure, the individual toroidal cores have very thin walls. Different parts of the structure are shown at different steps in the method of manufacture. The device includes sheet 2 of nonmagnetic material such as a ceramic that has an array of holes 3. These extend through from one surface to the other. A wet magnetic ferrite paint of a suitable viscosity is applied to sheet 2 to coat the walls of holes 3. This coating forms ferrite toroids 4 that have very thin walls. The ferrite is dried and the structure is then fired.

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Producing Microthin Ferrite Cores

In this ferrite core structure, the individual toroidal cores have very thin walls. Different parts of the structure are shown at different steps in the method of manufacture. The device includes sheet 2 of nonmagnetic material such as a ceramic that has an array of holes 3. These extend through from one surface to the other. A wet magnetic ferrite paint of a suitable viscosity is applied to sheet 2 to coat the walls of holes 3. This coating forms ferrite toroids 4 that have very thin walls. The ferrite is dried and the structure is then fired.

A suitable way to remove excess ferrite paint from hole 3 is to apply a high pressure air jet to the structure.

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