Effect of Annealing on Fracture Toughness Evaluation of Ba&lt;sub&gt;0.5&lt;/sub&gt;Sr&lt;sub&gt;0.5&lt;/sub&gt;Co&lt;sub&gt;0.8 &lt;/sub&gt;Fe&lt;sub&gt;0.2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;&lt;sub&gt;−&lt;/sub&gt;&lt;sub&gt;δ&lt;/sub&gt; (BSCF) at Different Temperatures

Sikder, Bablu; Chanda, Abhra

doi:10.4028/www.scientific.net/amm.592-594.816

AMM

2014

DOI: 10.4028/www.scientific.net/amm.592-594.816

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Effect of Annealing on Fracture Toughness Evaluation of Ba0.5Sr0.5Co0.8 Fe0.2O3−δ (BSCF) at Different Temperatures

Bablu Sikder

Abhra Chanda

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.

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Cited by 2 publications

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Mechanical Characterization of BSCF, a Prospective Perovskite Material for Oxygen Separation Membrane: A Brief Review

Sikder¹,

Chanda²

2016

Adv Eng Mater

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Ba0.5Sr0.5Co0.8Fe0.2O3‐δ (BSCF) is a mixed ionic electronic conducting membrane (MIEC) material which can be used for the separation of oxygen from air in both coal gasification and oxy‐fuel power plants. It shows the best oxygen separation performance at elevated temperatures (>800 °C). In this review paper, its mechanical behavior over a wide range of temperature is addressed. From the studies done so far, it is evident that BSCF shows a unique pattern in the temperature dependence of fracture toughness and Young's modulus. It poses a problem from the view point of structural stability of oxygen separation membrane, particularly during start‐up period or thermal cycling. Number of possible explanations have been put forward in recent past but most of them are speculative in nature and lacks in experimental support.

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Mechanical Characterization of BSCF, a Prospective Perovskite Material for Oxygen Separation Membrane: A Brief Review

Sikder¹,

Chanda²

2016

Adv Eng Mater

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Role of Crack Profile in the Calculation of Indentation Fracture Toughness for Highly Brittle Ceramics

Sikder

Mukherjee

Chanda

2017

Materials Today: Proceedings

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Effect of Annealing on Fracture Toughness Evaluation of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8 </sub>Fe<sub>0.2</sub>O<sub>3</sub><sub>−</sub><sub>δ</sub> (BSCF) at Different Temperatures

Cited by 2 publications

References 10 publications

Mechanical Characterization of BSCF, a Prospective Perovskite Material for Oxygen Separation Membrane: A Brief Review

Mechanical Characterization of BSCF, a Prospective Perovskite Material for Oxygen Separation Membrane: A Brief Review

Role of Crack Profile in the Calculation of Indentation Fracture Toughness for Highly Brittle Ceramics

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