Results 211 to 220 of about 15,196 (263)
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Preparation and properties of a barium-graphite compound
Journal of Materials Science, 1976A barium-graphite intercalated compound was prepared by vapour diffusion anneal of barium into well oriented pyrolytic graphite. The resulting specimens maintained their integrity and were well oriented along thec-axis. The compound reacts with air, but is not as reactive as the corresponding alkali metal intercalates.
L. A. Girifalco, T. O. Montelbano
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Stable barium compounds in YBa2Cu3Oy superconductors
Physica C: Superconductivity and its Applications, 2011Abstract The stability of various amounts of Ba3Cu3In4O12 (334) or BaTbO3 (BTO) in a sintered YBa2Cu3Oy (YBCO) matrix was examined. Samples with added 334 or BTO exhibited critical temperatures (Tc) above 90 K for up to 20 vol.% addition and improved critical current densities (Jc) under a magnetic field.
R. Kita +10 more
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Europium barium titanate—A magnetic ferroelectric compound
Journal of Applied Physics, 1978Eu1/2Ba1/2TiO3 was prepared with the intent of building both ferromagnetism and ferroelectricity into the same crystal lattice. Ceramic samples prepared at 1500 °C exhibit a magnetization of 59 emu/g at 1.8 °K and 5 kOe applied field. Possible crystallographic ordering of Ba2+ and Eu2+ ions is thought to permit positive interactions among the magnetic ...
D. L. Janes, R. E. Bodnar, A. L. Taylor
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A study of photon interaction parameters in barium compounds
Annals of Nuclear Energy, 2017Abstract We have studied the shielding properties of Barium compounds such as BaF 2 , BaI 2 , BaS, Ba 3 N 2 , BaSe and BaH 2 . The photon interaction parameters such as mass attenuation coefficient, linear attenuation coefficient, Half Value Layer (HVL), Tenth Value Layer (TVL), effective atomic number and electron density of different gamma energies
H.C. Manjunatha +3 more
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Luminescence of Pure Radium and Barium Compounds
Physical Review, 1940Luminescence, excited in some carefully purified crystalline barium and radium compounds by alpha-, beta-, and gamma-rays has been examined. It is found that these compounds show a faint luminescence at ordinary room temperatures. When the compounds are heated to various temperatures and then cooled, they show a continuous increase in luminescence with
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Preparation of Barium-Containing Silicon Clathrate Compound
Fullerene Science and Technology, 1995ABSTRACT A new silicon clathrate compound containing Ba was prepared by the thermal degradation of a solid solution (Na2Ba)Si4 at 500°C in vacuum. The compound has the Na8Si46 clathrate type structure, which consists of silicon tetrahedral networks having two types of cages, pentagonal dodecahedra and 14-face polyhedra.
Shoji Yamanaka +3 more
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ORGANIC COMPOUNDS OF BERYLLIUM, CALCIUM, STRONTIUM, AND BARIUM
Russian Chemical Reviews, 1962CONTENTS I. Introduction 439 II. Organic compounds of beryllium 440 III. Organic compounds of calcium 447 IV.
G A Balueva, S T Ioffe
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Anomalous chemical shifts: barium compounds
Journal of Electron Spectroscopy and Related Phenomena, 1984Les deplacements chimiques anormaux des electrons de cœur des composes du baryum sont en accord avec l'idee d'une forte covalence des electrons d de l'etat initial. De tels deplacements vers les energies de liaison plus faibles peuvent apparaitre chaque fois qu'une charge est transferee d'une orbitale etendue vers une orbitale localisee, lors de la ...
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ChemInform Abstract: GRAPHITE‐SODIUM‐BARIUM COMPOUND
Chemischer Informationsdienst, 1978AbstractGraphit reagiert mit Na‐Ba‐Legierungen unterschiedlicher Zusammensetzung unter Bildung von Einlagerungsverbindungen, von denen die metallreichsten blaue Verbindungen sind.
D. BILLAUD, A. HEROLD
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