Titlebook: LACAME 2012; Proceedings of the 1 C. A. Barrero Meneses,E. Passamani Caetano,L. E. Z Conference proceedings 2014 Springer Science+Business

態(tài)度暖昧

Effect of sintering conditions on the magnetic and structural properties of , , , , , , synthesizedo different thermal treatments were employed. All samples were previously milled and then compacted. Later, the sintering process was carried out in two cycles. For the first one, a sintering time of 2 h was followed by a cooling process governed by the inertia of the furnace. In the second treatmen

Optic-Disk

業(yè)余愛好者

,57FE M?ssbauer spectroscopy studies of Tektites from Khon Kaen, Ne Thailand,d. A MIMOS II spectrometer in backscattering geometry has been used in the study, so that no sample preparation at all was required. The spectra have been analysed in terms of discrete spectral components using Voigt functions. The results are similar to those obtained with analysis done with quadru

使苦惱

Formation of magnetic nanoparticles studied during the initial synthesis stage,amples were extracted at different stages of the reaction. While spectra measured on samples extracted at low reactor temperatures showed the starting materials Fe(acac). diluted in benzyl alcohol undergoing slow paramagnetic relaxation, a sample extracted at a reactor temperature of 180 °C gave cle

Gullible

跑過

,Self-tuning digital M?ssbauer detection system,high-voltage supply. Assuming constant discrimination levels, a drift in the detector gain impacts the output rate, producing an effect on the output spectrum. In some cases (e.g. single-energy resonant absorption experiments) data of interest can be completely lost. We present a digital self-adapti

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投射

,M?ssbauer study of intermediate superparamagnetic relaxation of maghemite (,-Fe,O,) nanoparticles,es. For the preparation, magnetite precursor, were oxidized by adjusting the pH = 3.5 at about 80 oC in an acid medium, The mean size of the maghemite particles calculated from the X-ray diffractogram was around 5.7 nm. M?ssbauer spectroscopy measurements at room temperature show their superparamagn

紀(jì)念

biopsy