To detect defects and residual stresses in a welded joint, is a fundamental aspect to determine the final product quality. Non-destructive tests highlight dimensions and positions of macroscopic defects but the best way to collect helpful data is the investigation of appropriate metallo graphic section. The selected investigation method to...
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2008 (v1)PublicationUploaded on: April 14, 2023
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2009 (v1)Publication
Le leghe di rame sono spesso utilizzate nella produzione di getti o semilavorati con svariate composizioni per la versatilità del processo di colata, che permette di utilizzare diverse tecniche e svariati materiali al fine di ottenere le caratteristiche desiderate. Tuttavia, nonostante questa tecnologia di produzione sia largamente utilizzata,...
Uploaded on: April 14, 2023 -
2008 (v1)Publication
Molteplici sono i resti che testimoniano le attività siderurgiche nelle valli Stura e Orba e si può individuare in Rossiglione una sorta di "capitale del ferro" della Repubblica di Genova tra il XIV e il XVIII secolo. I numerosi manufatti derivanti dalle intense attività di produzione che hanno caratterizzato i secoli scorsi sono in parte...
Uploaded on: April 14, 2023 -
2006 (v1)Publication
Chromia forming alloys are one of the best candidates for the interconnecting materials in solid oxide fuels cells (SOFC). Recent research has enabled to decrease the operating temperature of the SOFC from 1000 °C to 800 °C. However, low electronic conductivity and high volatility of the chromia scale need to be solved to improve performance of...
Uploaded on: March 27, 2023 -
2007 (v1)Publication
One of challenges in improving the performance and cost-effectiveness of solid oxide fuel cells (SOFCs) is the development of suitable interconnect materials. Recent researches have enabled to decrease the operating temperature of the SOFC from 1000 to 800 degrees C. Chromia forming alloys are then among the best candidates for interconnects....
Uploaded on: March 27, 2023 -
2011 (v1)Publication
This paper presents results for the conductivity of BaCe 0.85Y 0.15O 2-∞ (BCY15) measured by electrochemical impedance spectroscopy in wet hydrogen and in Air, as well as test results from the application of the material in a new dual membrane fuel cell configuration ("IDEAL Cell"), in which the water is produced and evacuated through a...
Uploaded on: April 14, 2023