Effect of Annealing on Fracture Toughness Evaluation of Ba_0.5Sr_0.5Co_0.8 Fe_0.2O_3−δ (BSCF) at Different Temperatures

Abstract:

An experimental study on the fracture toughness of BSCF samples were conducted at room temperature as well as elevated temperatures (upto 800°C). The results showed a typical variation of fracture toughness and fracture stress with temperature. It decreased upto 600°C and then increased to reach a comparatively higher value at 800°C. Without annealing the samples showed comparatively higher fracture toughness because of the presence of compressive residual stress.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 816-820
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.816
• Online since: July 2014
• Authors: Bablu Sikder*, Abhijit Chanda
• Keywords: Fracture, Hardness, Indentation, Membranes, Strength, Toughness

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