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Oxygen Transport Ceramic Membranes Quarterly Report

Description: This is the fourth quarterly report on a new study to develop a ceramic membrane/metal joint. The first experiments using the La-Sr-Fe-O ceramic are reported. Some of the analysis performed on the samples obtained are commented upon. A set of experiments to characterize the mechanical strength and thermal fatigue properties of the joints has been designed and begun. Finite element models of joints used to model residual stresses are described.
Date: July 1, 2000
Creator: Bandopadhyay, Sukumar & Nagabhushana, Nagendra
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oxygen Transport Ceramic Membranes Quarterly Report

Description: In the present quarter, oxygen transport perovskite ceramic membranes are evaluated for strength and fracture in oxygen gradient conditions. Oxygen gradients are created in tubular membranes by insulating the inner surface from the reducing environment by platinum foils. Fracture in these test conditions is observed to have a gradient in trans and inter-granular fracture as opposed to pure trans-granular fracture observed in homogeneous conditions. Fracture gradients are reasoned to be due to o… more
Date: July 1, 2002
Creator: Bandopadhyay, Sukumar & Nagabhushana, Nagendra
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oxygen Transport Ceramic Membranes Quarterly Report

Description: The mechanical properties of model systems were analyzed. A reasonably accurate finite element model was implemented and a rational metric to predict the strength of ceramic/metal concentrical joints was developed. The mode of failure of the ceramic/metal joints was determined and the importance of the mechanical properties of the braze material was assessed. Thermal cycling experiments were performed on the model systems and the results were discussed. Additionally, experiments using the conce… more
Date: July 1, 2001
Creator: Bandopadhyay, Sukumar & Nagabhushana, Nagendra
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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