نتایج جستجو برای: nickel molybdenum oxide

تعداد نتایج: 219586  

Journal: :Chemical communications 2009
Daniela Buccella Gerard Parkin

p-tert-Butyltetrathiatetramercaptocalix[4]arene, [S(4)Calix(Bu(t))(SH)(4)], reacts with Mo(PMe(3))(6), W(PMe(3))(4)(eta(2)-CH(2)PMe(2))H and Ni(PMe(3))(4) to yield molybdenum, tungsten and nickel compounds in a sulfur-rich coordination environment.

Journal: :Physical review. B, Condensed matter 1986
Cable Khan Felcher Schuller

The magnetic properties of Ni-Mo metallic superlattices have been examined by magnetization and polarized-neutron diffraction measurements. The samples are ferromagnetic, with an ordering temperature rapidly increasing with the superlattice period A. The saturation magnetization per nickel atom also increases with A, gradually approaching the value of the pure metal. The proximity of molybdenum...

Journal: :Brazilian oral research 2014
Helena de Freitas Oliveira Paranhos Osvaldo Luiz Bezzon Letícia Resende Davi Daniela Nair Borges Felipucci Cláudia Helena Lovato da Silva Valéria Oliveira Pagnano

This study evaluated the effect of cleanser solutions on the color of heat-polymerized acrylic resin (HPAR) and on the brightness of dental alloys with 180 immersion trials. Disk-shaped specimens were made with I) commercially pure titanium, II) nickel-chromium-molybdenum-titanium, III) nickel-chromium molybdenum, and IV) nickel-chromium-molybdenum beryllium. Each cast disk was invested in the ...

Journal: :Scandinavian journal of clinical and laboratory investigation 2014
Björn Schultze P Monica Lind Anders Larsson Lars Lind

OBJECTIVE While the potential toxicity of metals in humans is a well-established field of research, there are few studies that examine circulating concentrations of metals in large population-based samples. The aim of this study was to analyze levels of heavy metals and trace elements in both whole blood and serum in an elderly population, and to examine if gender, kidney function, haemoglobin ...

2012
Shaopeng Sun

Mo and W alloys are recognized for their outstanding corrosion, wear resistance and catalytic properties towards the generation of hydrogen. The electrochemical codeposition behavior of Mo or W with iron-group elements (i.e., Ni, Co, Fe) exhibits induced codeposition, since they cannot be reduced alone, but only with iron group elements. Although Mo and W have been intensively investigated, the...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
pallavi ameta anil kumar rameshwar ameta r.k. malkani

the use of colored semiconductor oxide like copper (ii) oxide and nickel (ii) oxide for photocatalytic bleaching of rose bengal was investigated in detail. in order to harness the solar energy, the effective wavelength of the photocatalyst is to be expanded into the visible region and that increases the rate of photocatalytic bleaching of the dye. progress of the reaction was observed spectroph...

2015
S Gopikrishnan Anil Melath V V Ajith N Binoy Mathews

BACKGROUND Orthodontic wires are the corner stones of the science and art of orthodontics and they remain in the patient's mouth for a prolonged period of 18-24 months. It is but natural to expect that they will undergo some biodegradation when in the oral environment during that period. This study aims to compare the biodegradation characteristics of four different orthodontic wires, stainless...

Journal: :journal of research in health sciences 0
vida zaroushani ali khavanin ahmad jonidi jafari seyed bagher mortazavi

background : widespread use of x-band frequency (a part of the super high frequency microwave) in the various workplaces would contribute to occupational exposure with potential of adverse health effects.  according to limited study on microwave shielding for the workplace, this study tried to prepare a new microwave shielding for this purpose. methods: we used ei-403 epoxy thermosetting resin ...

In this study, mechanical alloying was done by a high-energy planetary ball milling technique. A mixture of NiO and MoO3 and graphite powders were used as initial materials. After milling of powder mixture with 40 wt.% additional graphite, a temperature of 400, 550 and 1000 °C for 1 h was considered for the heat treatment of powder mixture. Also, powder mixtures containing 60, 80 and 100 wt.% a...

بساکی, سمیرا, رشید زاده, مهدی, نقی‌زاده, رحیم, گلستانی‌فرد, فرهاد,

Titanium dioxide-nickel oxide porous coatings were synthesized by Plasma Electrolytic Oxidation (PEO)/ ElectroPhoretic Deposition (EPD) in one step and within a short time. The main purpose of this research was to increase photocatalytic activity of titanium oxide by increasing surface area and coupling of titanium oxide with nickel oxide. Applied voltage effects on phase structure, surface mor...

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