543 research outputs found
Upsom Downs
Solo exhibition (exhibition title Upsom Downs) of 18 paintings made between 2003-2015 by Katie Pratt. Galerie Peter Zimmermann, Mannheim 23/01/2016-12/03/201
Exposition Sorolla y Bastida : ouverte du 12 Juin au 10 Juillet 1906 ... : Galerie Georges Petit ...
Copia digital. España : Ministerio de Cultura y Deporte. Subdirección General de Coordinación bibliotecaria, 201
Phylogenetic Trees
This collaborative artwork by Mark Dion and Robert Williams was a print series entitled 'Phylogenetic Trees'. It was included in the exhibition 'Mark Dion: Cosmographia'
Iron oxidation at low temperature (260–500 C) in air and the effect of water vapor
The oxidation of iron has been studied at low temperatures (between 260 and 500 C) in dry air or air with 2 vol% H2O, in the framework of research on dry corrosion of nuclear waste containers during long-term interim storage. Pure iron is regarded as a model material for low-alloyed steel. Oxidation tests were performed in a thermobalance (up to 250 h) or in a laboratory furnace (up to 1000 h). The oxide scales formed were characterized using SEM-EDX, TEM, XRD, SIMS and EBSD techniques. The parabolic rate constants deduced from microbalance experiments were found to be in good agreement with the few existing values of the literature. The presence of water vapor in air was found to strongly influence the transitory stages of the kinetics. The entire structure of the oxide scale was composed of an internal duplex magnetite scale made of columnar grains and an external hematite scale made of equiaxed grains. 18O tracer experiments performed at 400 C allowed to propose a growth mechanism of the scale
Catalogue des faïences anciennes françaises et européennes ... faïences orientales ... porcelaines de Chine, médaillons en terre cuite ... composant la collection de feu M. Manzi
Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 201
Oxidation and oxygen diffusion in Ti-6al-4V alloy: improving measurements during sims analysis by rotating the sample
Titanium alloys are attractive to the industrial world, as they offer the benefits of low density, great corrosion resistance, and relatively good strength, making them viable candidates for a multitude of applications. However, above 500 °C, oxidation and oxygen diffusion in titanium alloys need to be taken into account as they change their microstructure and then their mechanical properties. Oxidations were carried out between 600 and 750 °C on a specific titanium alloy: an a-b annealed Ti-6Al-4V. Oxidation kinetics and oxygen diffusion in the matrix were studied. SIMS analyses were realized on rotating specimens of this two-phase polycrystalline alloy in order to reduce roughness. Composition profiles along the sample thickness were compared to microhardness measurements. SIMS mappings were realized on the smooth slopes of the crater
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