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Daniel Chartouni Andreas Zü ttel Christoph Nü tzenadel Louis Schlapbach 《Journal of Alloys and Compounds》1997,260(1-2):265-270
We have investigated the alloy ZrV1.5Ni1.5 by means of scanning electron microscopy (SEM) with electron probe X-ray microanalysis (EPMA), X-ray diffraction (XRD), in situ STM (scanning tunnelling microscopy in an electrolyte under controlled electrochemical potential) and electrochemical charge discharge measurements. By means of EPMA we found that the alloy is composed of three different crystallographic phases. The main phase (≈75 vol.%) is ZrV0.81Ni1.47, the second phase (≈20 vol.%) is V92Ni8 and the third (≈5 vol.%) is a ZrNi based phase. Using in situ STM we investigated the different corrosion behaviour of the phases. At a potential of −600 mV versus the Hg/HgO reference electrode we observed the corrosion of the vanadium rich phase while the other two phases passivated. 相似文献
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E Mayatepek M Schr?der D Kohlmüller WP Bieger W Nützenadel 《Canadian Metallurgical Quarterly》1997,86(10):1138-1140
The effects on isoelectrofocusing patterns of serum glycoproteins were studied in a patient with CDG syndrome type I and phosphomannomutase deficiency during 3 weeks of continuous intravenous mannose infusion. Doses of 5.7 g/kg/day led to stable serum mannose levels up to 2.0 mmol/l and were well tolerated without signs of liver or renal toxicity. While most of the pathological glycoprotein patterns, including alpha1-antitrypsin, typical for CDG syndrome type I remained unchanged, mannose infusion led to a unique change of the isoelectrofocusing pattern of serum sialotransferrins with appearance of two extra bands after 3 weeks of treatment. 相似文献
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