The Influence of Sintering Conditions on Microstructure of La-Ca-Sr-Mn-O Magnetocaloric Ceramics

Katarina Zmorayova; Samuel Piovarči; Monika Radusovska; Vitaliy Antal; Viktor Kavečanský; Pavel Diko

doi:10.4028/www.scientific.net/MSF.782.503

Paper Titles

Oxide Reduction Processes, Microstructure and Properties of Sintered Chromium Pre-Alloyed Steel
p.487

PM Materials Prepared from Powders Consisting of Polymer Coated Iron Microparticles
p.491

Microstructure of Composites Based on Phosphated Iron Powder
p.495

Effect of Silver Content on Microstructure and Corrosion Behavior of Material Prepared from Silver Coated Iron Powder
p.499

The Influence of Sintering Conditions on Microstructure of La-Ca-Sr-Mn-O Magnetocaloric Ceramics
p.503

The Effect of Ni Interlayers on Compaction of Mo/Mo Silicide Composites
p.507

Microstructure and Thermal Expansion of Hybrid - Copper Alloy Composites Reinforced with both Tungsten and Carbon Fibres
p.513

Thermal Cycling of Copper Based Composite Reinforced with High Modulus Carbon Fibres
p.519

Microstructure and Properties of Composites Prepared by Reactive Pressure Infiltration of Aluminium into Metal and Ceramic Powder Preforms
p.523

HomeMaterials Science ForumMaterials Science Forum Vol. 782The Influence of Sintering Conditions on...

The Influence of Sintering Conditions on Microstructure of La-Ca-Sr-Mn-O Magnetocaloric Ceramics

Abstract:

A La_0.67Ca_0.33-xSr_xMnO₃ (x=0.33; 0.03; 0) perovskite magnetocaloric powders were prepared by solid state synthesis in air. Phase transformations were characterized by thermal analyses and the phase composition was confirmed by X-ray powder diffraction. Pressed pellets were sintered at different temperatures. Microstructure analyses were done by polarized light microscopy and scanning electron microscopy. The influence of sintering conditions on porosity, grain size and content of secondary phases is shown.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 782)

Pages:

503-506

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.782.503

Citation:

Cite this paper

Online since:

April 2014

Authors:

Katarina Zmorayova*, Samuel Piovarči, Monika Radusovska, Vitaliy Antal, Viktor Kavečanský, Pavel Diko

Keywords:

La-Ca-Sr-Mn-O Perovskite, Magnetocaloric Ceramics Material, Microstructure, Thermal Analysis

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] K. Gschneidner, V. Pecharsky, and A. Tsokol, Recent developments in magnetocaloric materials, Rep. Prog. Phys., 68 (2005) 1479–539.

DOI: 10.1088/0034-4885/68/6/r04

Google Scholar

[2] A. R. Dinesen, S. Linderoth, and S. Morup, Direct and indirect measurement of the magnetocaloric effect in La0. 67Ca0. 33-xSrxMnO3 (x is an Element of [0; 0. 33]), J. Phys.: Condens. Matter, 17 (2005) 6257–69.

Google Scholar