Method for inducing uniaxial magnetic anisotropy in an amorphous

Details Method for inducing uniaxial magnetic anisotropy in an amorphous Method for inducing uniaxial magnetic anisotropy in an amorphous

1974-06-04

1977-07-05

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

75123D, 148 3155, 331156, C21D 104, H03B 530

Patent

active

040337952

ABSTRACT:
Through the practice of this invention there is achieved control of the vibrational frequency of an electromechanical oscillator. This is achieved by utilizing the change in Young's modulus of elasticity which occurs for certain materials with applied magnetic field, known as the .DELTA.E-effect. By selective annealing in the presence of specially directed magnetic field, the .DELTA.E-effect is selectively altered along specific directions in the vibrational member. Additionally, by control of the .DELTA.E-effect of a sonic delay line, there is achieved control of the delay time for an acoustic pulse propagating therein.

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