Parisa Amirkhizi

Parisa Amirkhizi
University of Aveiro | UA · Division of Materials Engineering

Master of Engineering

About

3
Publications
297
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13
Citations

Publications

Publications (3)
Article
Full-text available
Aliovalent substitutions in Ca3Co4O9 often result in complex effects on the electrical properties and the solubility, and impact of the substituting cation also depends largely on the preparation and processing method. It is also well-known that the monoclinic symmetry of this material’s composite crystal structure allows for a significant hole tra...
Article
The main aim of this work was to estimate the dielectric constant of electrospun BaTiO 3 nanofibers (BT NF s) using theoretical models. The effect of calcination temperatures on morphology and crystal structure of BT NF s was also investigated by using SEM, TEM, XRD and Raman spectroscopy. The dielectric constant of BT NF s was calculated by applyi...
Article
Full-text available
This paper reports a novel composite-based processing route for improving the electrical performance of Ca3Co4O9 thermoelectric (TE) ceramics. The approach involves the addition of metallic Co, acting as a pore filler on oxidation, and considers two simple sintering schemes. The (1-x)Ca3Co4O9/xCo composites (x = 0%, 3%, 6% and 9% vol.) have been pr...

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