Uniaxial anisotropy and enhanced magnetostriction of CoFe2O4 induced by reaction under uniaxial pressure with SPS

@article{Aubert2017UniaxialAA,
  title={Uniaxial anisotropy and enhanced magnetostriction of CoFe2O4 induced by reaction under uniaxial pressure with SPS},
  author={Alex Aubert and Vincent Loyau and Fr{\'e}d{\'e}ric Mazaleyrat and Martino LoBue},
  journal={Journal of The European Ceramic Society},
  year={2017},
  volume={37},
  pages={3101-3105}
}

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References

SHOWING 1-10 OF 23 REFERENCES

Large enhancement of magnetostriction due to compaction hydrostatic pressure and magnetic annealing in CoFe2O4

Polycrystalline CoFe2O4 was produced by a ceramic method. The heat-treated powder was pressed, varying the hydrostatic pressure between 87 and 278 MPa, and was heat-treated again at 1350 °C for 24 h.

Study of uniaxial magnetism and enhanced magnetostriction in magnetic-annealed polycrystalline CoFe2O4

Magnetic and magnetostrictive properties of magnetic-annealed polycrystalline CoFe2O4 were investigated. The magnetic hysteresis loops showed obvious uniaxiality with an induced easy direction

Improvement of magnetomechanical properties of cobalt ferrite by magnetic annealing

We report dramatic improvements in both magnetostriction level and strain derivative of polycrystalline cobalt ferrite as a result of magnetic annealing. Magnetostrictive cobalt ferrite composites

Magnetoelectric effect in layered ferrite/PZT composites. Study of the demagnetizing effect on the magnetoelectric behavior

We report the use of high magnetomechanical coupling ferrites in magnetoelectric (ME) layered composites. Bilayer samples combining (Ni0.973 Co0.027)1−xZnxFe2O4 ferrites (x = 0–0.5) synthesized by

High magnetostriction and coupling coefficient for sintered cobalt ferrite derived from superparamagnetic nanoparticles

High magnetostriction (λ) and coupling coefficient (dλ/dH) of 315 ppm and 1.97×10−9 A−1m, respectively, are obtained at room temperature for sintered cobalt ferrite derived from nanocrystalline

Dependence of the magnetostrictive properties of cobalt ferrite on the initial powder particle size distribution

The dependence of the magnetostrictive properties of cobalt ferrite on the size distribution of the powder used in deriving the samples from traditional ceramic approach is presented. Sample obtained