منابع مشابه
Surface analysis of dental amalgams by X-ray photoelectron spectroscopy and X-ray diffraction.
OBJECTIVES It is important to characterize the surface of dental amalgam in order to understand the process of mercury release from amalgam restorations in the oral cavity. The mercury evaporation occurs not only from the newly made restoration but also from the set material. METHODS The surfaces of four different types of amalgams, which had been well set, were analyzed with X-ray photoelect...
متن کاملX-Ray mapping and the mineralogy pattern of nickel laterite ore: Bavanat, Fars, Iran
According to the classification of the nickel laterite, this paper describes mineralogy test is to reveal where valuable elements are located in the ore, in which mineralogical form. The purpose of the sieving test was to study if some specific particle size contains most of the valuable metals. Based on its chemical composition nickel laterite is classified as a limonite type and the nickel an...
متن کاملX-ray photoelectron spectroscopic study of non-stoichiometric nickel and nickel-copper spinel manganites
The surface of non-stoichiometric nickel and nickel–copper spinel manganites has been investigated by X-ray Photoelectron Spectroscopy (XPS). The oxidation states of the nickel, copper and manganese cations present on the surface of the samples were 21 1 determined from the analysis of the M 2p core levels (M5Ni, Cu, Mn). In particular, both Cu and Cu were evidenced in the 3 / 2 structure where...
متن کاملA Soft X-ray Appearance Potential Spectroscopy Study of the Oxidation of Nickel
Variations of the electronic properties of nickel during the first stages of oxidation were studied by means of the soft x-ray appearance potential spectroscopy (APS). The spectra consist of a superposition of contributions from metallic nickel and from NiO and yield no evidence for a con tinuous change of the oxidation state of the Ni atoms. The binding energy of the 2p3/2-electrons in metall...
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ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1941
ISSN: 0369-4208,2185-0909
DOI: 10.1246/nikkashi1921.62.29