eLearning

The Determination of Silicon, Chromium and Cobalt in Steels by Proton-Induced Prompt Photon Spectrometry

D. Gihwala; M. Peisach IEEE Transactions on Nuclear Science, 1983

Prompt ¿-ray spectra from pure samples of Si, Cr and Co induced by protons between 3.5 and 6.0 MeV were used to evaluate the analytical feasability of the method and to calculate interference-free sensitivities. The bombarding energy was selected from experimentally determined sensitivity curves and the method was tested on NBS standard steels. Using protons of 4.0 and 4.5 MeV ...

Improvement of magnetomechanical properties of cobalt ferrite by magnetic annealing

C. C. H. Lo; A. P. Ring; J. E. Snyder; D. C. Jiles IEEE Transactions on Magnetics, 2005

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 have potential for use in advanced magnetomechanical stress and torque sensors due to their high sensitivity of magnetization to applied stresses and high levels of magnetostriction. Results show that annealing cobalt ferrite at 300°C in ...

A new ultra-violet magneto-optical spectroscopic instrument and its application to Co-based multilayers and thin films

W. P. Van Drent; T. Suzuki IEEE Transactions on Magnetics, 1997

A magneto-optic measurement system for the 1.4-6.8 eV photon energy range (λ=182-886 nm) is realized. A new technique to calibrate the applied modulator in-situ, essential for accurate measurements over such a wide range of photon energies, is demonstrated. Measurements at Co/Pt multilayers with 3 Å Co layers and various Pt layer thicknesses indicate a peak for the polar Kerr rotation ...

Pyro Photosensor Utilizing Thermally-sensitive Magnetic Thin Film

T. Yoshida; Y. Ajishi; H. Osada; S. Chiba; N. Tayama; K. Seki; H. Matsuki 1998 IEEE International Magnetics Conference (INTERMAG), 1998

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Prediction control research of cobalt lion concentration in Zinc hydrometallurgy based on NN and GM technique

Yan Mi-ying; Gui Wei-hua; Yang Chun-hua; Yan Mi-ying 2010 International Conference on Mechanic Automation and Control Engineering, 2010

Considering the strong non-linearity and large time delay of purification in zinc hydrometallurgy in purification process, a prediction model of cobalt concentration combining neural network (NN) and grey model (GM) are proposed. In the key part II of the purification, because of the harmful impurities cobalt ion concentration can not be on-line measured, and the testing results is two hours ...

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IEEE-USA E-Books

• IronNickel Alloys

  This chapter contains sections titled: Binary Iron-Nickel Alloys Commercial Binary Alloys Iron-Nickel-Molybdenum Alloys Iron-Nickel-Chromium Alloys Iron-Nickel-Copper Alloys Iron-Cobalt-Nickel Alloys Other Iron-Nickel Alloys

• IronCobalt Alloys

  This chapter contains sections titled: Iron-Cobalt Alloys with Additions

• Core Laminations and Their Insulation

  This chapter covers a class of materials known as ferromagnetics. They are very strongly magnetic and include iron, nickel, cobalt, and some alloys. For motor and generator applications, there are two ways to obtain a magnetic field with ferromagnetic materials. It can be created either by electric currents, as in electromagnets, or by permanent magnets. We focus on the materials, processes, and insulation of electromagnets.

• Toward Spin Electronic Devices Based on Semiconductor Nanowires

  This chapter contains sections titled: Introduction Spin Injection into Semiconductor Nanowires Sample Preparation Cobalt Micromagnets Nonlocal spin Injection Conclusions

• Other High Permeability Materials

  This chapter contains sections titled: Cobalt Nickel Cobalt-Nickel Alloys Other Cobalt Alloys Other Nickel Alloys Heusler Alloys Other Manganese Alloys Other Alloys and Elements

• The Kenetics of Solution of Tungsten Carbide in Molten Cobalt

  This chapter contains sections titled: Introduction, Previous Work, Experimental Method, Experimental Results, Discussion of Results, Summary, References, Acknowledgements