Magnetic ferrite

Xem 1-8 trên 8 kết quả Magnetic ferrite
  • The hard magnetic ferrite system of Sr1-xLaxFe12-yCoyO19 with x = 0.0-0.3 and y = 0.00.3 has been prepared by traditional ceramic technology and showed hexagonal crystalline structure of M-Type.The anisotropic sample Sr0.8 La0.2Fe11.7Co0.3O19 + 0.5% weight SiO2 sintered at 1280oC/2h has the best hard magnetic properties, namely Br = 4.66 kG; BHC = 3.46 kOe and (BH)max = 5.70 MG.Oe.

    pdf7p tuanlocmuido 19-12-2012 15 2   Download

  • Recent progress in information technology, wireless communication, biotechnology and microelectronics requires advanced technologies and new magnetic materials to meet demands of modern devices. This collection of eight chapters provides an up‐todate review of recent trends and developments in technology, characterization methods, theory and applications of modern magnetic materials with original, never published contributions from the renowned scientists in the field of magnetism.

    pdf242p wqwqwqwqwq 06-07-2012 35 8   Download

  • In this research, strontium hexa-ferrite nanoparticles (SrFe12O19) were synthesized by sol-gel method. The crystal structure, morphology and magnetic properties of nanoparticles were investigated using X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM). The XRD patterns confirmed the formation of single phase M-type hexagonal crystal structure for powders which was calcined above 700oC.

    pdf6p ironman1234 06-06-2018 0 0   Download

  • R.A.M. Must be defect free Most at risk during in flight fueling High maintenance $14.5 million (F-117) Affected by weather conditions Reason for B-2 Bomber stationed only in USA References

    ppt6p dangan91 21-12-2012 31 4   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Aqueous Solution Preparation, Structure, and Magnetic Properties of Nano-Granular ZnxFe32xO4 Ferrite Films

    pdf6p dauphong15 16-02-2012 23 3   Download

  • A series of cobalt doped nickel ferrite with composition of Ni1-XCoXFe2O4 with x ranges from 0.0 to 0.8 (in steps of 0.2) was prepared by using co-precipitation method and subsequently sintered, annealed at 6000C for 3h. The influence of the Co content on the crystal lattice parameter, the stretching vibration and the magnetization of specimens were subsequently studied. XRD and FTIR were used to investigate structure and composition variations of the samples. All samples were found to have a cubic spinel structure. ...

    pdf7p tuanlocmuido 19-12-2012 15 2   Download

  • Among spinel ferrites, Cd and Zn ferrites are always normal ferrites with Cd and Zn ions locating only in tetrahedral sites. This study presents effect of Zn on the magnetic and magnetocaloric properties of the mixed spinel ferrites Ni1-xZnxFe2O4 (x = 0.60, 0.65, 0.70, 0.75). The presence of Zn affects lattice parameters, saturation magnetization Ms, Curie temperature, Tc, and magnetic entropy change ∆Sm. At highest Zn content, Tc reduces to the temperature lower than room temperature and magnetic structure of spins in the octahedral sublattice should be strongly canted. ...

    pdf8p tuanlocmuido 19-12-2012 19 1   Download

  • In the present article, we report the biosensor can detect superparamagnetic nanoparticles (less than 10 nm in size) at various and low particle concentrations, which is of the importance role in biosensing applications. The nanoparticle ferrite (Fe3O4), Cobalt ferrite (CoFe2O4), Nickel ferrite (NiFe2O4) nanoparticles were synthesized by the high temperature thermal decomposition precursor method.

    pdf6p truongtien_09 08-04-2018 1 0   Download


Đồng bộ tài khoản