aimant nanokristaline yttrium samarium cobalt

  • Effect of Samarium Substitution on the Structural and

    A series of samarium-substituted cobalt ferrites ( with,0.05, 0.10, 0.15, 0.20, 0.25) was synthesized by the sol-gel method. The structural characterizations of all the prepared samples were done using XRD and FTIR. These studies confirmed the formation of single-phase spinel structure in all the compositions. The increase in the value of lattice parameter with increase in samarium

  • Cited by: 23
  • Research Article Effect of Samarium Substitution on the

    Research Article Effect of Samarium Substitution on the Structural and Magnetic Properties of Nanocrystalline Cobalt Ferrite SheenaXavier,SmithaThankachan,BinuP.Jacob,andE.M.Mohammed Research Department of Physics, Maharaja s College, Ernakulam, Kerala PIN-, India Correspondence should be

  • Cited by: 23
  • Yttrium Wikipedia

    Yttrium is a chemical element with the symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element". Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals, and is never found in nature as a free element.

  • Pronunciation: /ˈɪtriəm/ ​(IT-ree-əm)
  • Samarium an overview ScienceDirect Topics

    The nanocrystalline yttrium– samarium –cobalt grains possess unusual magnetic properties due to their large grain interface area with a high coercivity due to their magnetization flips. Magnetic materials are used in motors, analytical instruments like magnetic resonance imaging (MRI), which are most widely used in hospitals and other

  • Rare-earth magnet Wikipedia

    Samarium–cobalt magnets (chemical formula: Sm Co 5), the first family of rare-earth magnets invented, are less used than neodymium magnets because of their higher cost and lower magnetic field strength.However, samarium–cobalt has a higher Curie temperature, creating a niche for these magnets in applications where high field strength is needed at high operating

  • Samarium-cobalt alloy 18 disc, size 10 mm × 6 mm Sigma

    Samarium-cobalt alloy 18 disc, size 10 mm × 6 mm; Linear Formula: SmCo5; find Sigma-Aldrich-692859 MSDS, related peer-reviewed papers, technical documents, similar products &

  • PDJQHWURQVSXWWHULQJ

    2. Experimental The samarium cobalt thin films were grown by dc magnetron sputtering on Si(111) and quartz substrates. Before starting deposition, the chamber was evacuated to the base pressure of 2×10-6 Torr. The deposition was performed at the argon partial pressure of 2 mTorr.

  • Cited by: 2
  • Development of samarium–cobalt rare earth permanent

    20/11/2014· Read "Development of samarium–cobalt rare earth permanent magnetic materials, Rare Metals" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • Development of samarium–cobalt rare earth permanent

    20/11/2014· Abstract. Samarium–cobalt rare-earth (Sm–Co-RE) permanent magnetic materials with large magnetic energy product, high coercive force, high Curie temperature, good thermal stability, and corrosion resistance, have wide potential applications in aerospace, microwave communications, instrumentation, electrical engineering, magnetic machinery, etc.

  • Cited by: 19
  • PDJQHWURQVSXWWHULQJ

    2. Experimental The samarium cobalt thin films were grown by dc magnetron sputtering on Si(111) and quartz substrates. Before starting deposition, the chamber was evacuated to the base pressure of 2×10-6 Torr. The deposition was performed at the argon partial pressure of 2 mTorr.

  • Development of samarium–cobalt rare earth permanent

    20/11/2014· Read "Development of samarium–cobalt rare earth permanent magnetic materials, Rare Metals" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • Samarium-cobalt alloy 24 disc, size 10 mm × 6 mm Sigma

    Samarium-cobalt alloy 24 disc, size 10 mm × 6 mm; Linear Formula: Sm2Co17; find Sigma-Aldrich-692840 MSDS, related peer-reviewed papers, technical documents, similar products &

  • Effect of Samarium Substitution on the Structural and

    EFFECT OF SAMARIUM SUBSTITUTION ON THE STRUCTURAL AND MAGNETIC PROPERTIES OF COBALT FERRITE” Rietveld analysis of XRD patterns of different sizes of nanocrystalline cobalt ferrite: Effect of Zn Substitution on the Magnetic Properties of Cobalt

  • Synthesis and characterization of Y and Sm doped Mg

    Synthesis and characterization of Y and Sm doped Mg nanoferrites. Article in Integrated Ferroelectrics 184(1):151-157 · October 2017 with 118 Reads How we measure 'reads' A 'read' is counted each

  • Production of Functional Nanocrystalline Materials in Hydrogen

    On the example of KS25 and KS37 samarium–cobalt-base commercial alloys and LaNi4.5Al0.5 alloy, we show the possibility, in principle, of obtaining functional materials in the nanocrystalline

  • Crystalline Nanocellulose (Nanocrystalline Cellulose)

    Crystalline Nanocellulose (Nanocrystalline Cellulose) which is also called cellulose nanofibers (CNF), microfibrillated cellulose (MFC) or cellulose nanocrystal (CNC) are submicroscopic particles,are obtained from wood pulp or any woody biomass.

  • Production of Functional Nanocrystalline Materials in Hydrogen

    Abstract. On the example of KS25 and KS37 samarium–cobalt-base commercial alloys and LaNi 4.5 Al 0.5 alloy, we show the possibility, in principle, of obtaining functional materials in the nanocrystalline state with the help of a planetary mill in hydrogen medium. Milling with a rotational speed of 600 rpm during 24 h leads to the disproportionation of KS25 and KS37 alloys into samarium

  • Investigation on the structures and magnetic properties of

    21/05/2018· As is well-known, doping is a vitally common and important approach to modify the structures and properties of the materials by changing the

  • Nanocellulose Nanografi

    Nanocellulose has low porosity, transparency and low expansion coefficient. Thanks to these features, they can be used in applications such as coating, packaging and barrier. Nanocellulose is a natural substance and environment friendly. Nano cellulose can be easily obtained, so that future use is expected to become widespread.

  • Atomic structure and domain wall pinning in samarium

    With further development, this knowledge can be applied to produce samarium cobalt permanent magnets with improved magnetic performance. Understanding the factors that determine the properties of

  • Structural Nanocrystalline Materials

    These values increase with a decrease in the grain size and an increase in the specific surface area (surface area per unit volume) of the grains. It has been shown that magnets made of nanocrystalline yttrium–samarium–cobalt grains possess very unusual magnetic properties owing to their extremely large surface area (Cowburn et,al., 1998

  • samarium English translation Linguee

    A gas discharge lamp fitted with a gas discharge vessel filled with a gas filling suitable for a gas discharge which emits VUV radiation, with a luminophore coating containing a down conversion luminophore, and with means for igniting and maintaining a gas discharge, in which the down conversion luminophore contains, in a host lattice, a pair of activators of a first lanthanoid ion and a

  • A Study of Micro structural, Magnetic and Electrical

    A Lanthanum (La 3+ ) doped Samarium-Cobalt nanoferrites (,where x=0.0,0.5,1.0) have been synthesized by sol-gel method in citrate media. Obtained spinal ferrites micro structure properties have been investigated by XRD, FTIR, SEM-EDX, and TEM-SAED techniques. All the samples are nano in size with significant hysteresis. Micro structural analysis by XRD confirms the obtained samples

  • Samarium Doped Ceria Electrolyte Nanopowder

    Samarium Doped Ceria nanoscale powder is used as a sintering aid, catalyst support, and as a component for mixed conducting anodes and cathodes to enhance catalytic activity. Truly nanocrystalline (5-10 nm) with ultrahigh surface area.

  • PowerPoint Presentation

    It has been shown that magnets made of nanocrystalline yttrium–samarium–cobalt grains possess unusual magnetic properties due to their extremely large grain interface area (high coercivity can be obtained because magnetization flips cannot easily propagate past the grain boundaries).

  • nanotechnology -applications, sol get method(essay

    It has been shown that magnets made of nanocrystalline yttrium–samarium–cobalt grains possess unusual magnetic properties due to their extremely large grain interface area (high coercivity can be obtained because magnetization flips cannot easily propagate past the grain boundaries).

  • CRYSTALLOGRAPHIC AND MAGNETIC PROPERTIES OF

    CRYSTALLOGRAPHIC AND MAGNETIC PROPERTIES OF METASTABLES AND STABLES NANOCRYSTALLINE Sm-Fe-Si ALLOYS C. DJEGA-MARIADASSOU1, E. BURZO2, A. NANDRA2, L. BESSAIS1 1 LCMTR UPR 209 CNSR, 2/8 Rue Henri Dunant, BP 28 F-9432, Thiais, France 2 Faculty of Physics, “Babeº-Bolyai” University, 400084 Cluj-Napoca, Romania Received May 28, 2004

  • Scandium Wikipedia

    Scandium is a chemical element with the symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been classified as a rare-earth element, together with yttrium and the lanthanides.It was discovered in 1879 by spectral analysis of

  • WO2014108610A1 Procede de fabrication d'aimants

    Ce procédé de fabrication d'un aimant permanent à base de poudre ferromagnétique comprend les étapes suivantes: enrobage des grains de poudre à l'aide d'un premier polymère possédant une température de fusion T f1 ; mélange des grains ainsi enrobés et d'un second polymère possédant une température de fusion T f2 supérieure à T f1 ; mise en forme du mélange; chauffage du