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Structure, Chemical Stability and Magnetic Properties of Lanthanum Silicate Oxide Apatite Synthesized by Hydrothermal Method

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Abstract:

Lanthanum silicate oxides (LSOs) with modified mass target varied from 1 to 10 g were successfully synthesized using the hydrothermal method in a 100 mL autoclave. This research is aimed to study the structure, chemical stability, and magnetic properties of the LSO. From x-ray diffraction (XRD) patterns, the main peaks of LSO were observed in the sample with 1, 3, 5, and 7 g mass target while the LSO pattern did not match in the sample with 10 g mass target. The samples with low mass target resulted in better crystallinity. The chemical stabilities of the sample were then tested on LSCF perovskite cathode and showed good chemical stability with no reactivity on the cathode. The magnetic properties of the sample with 5 g mass target was measured at 100 to 300 K using a superconducting quantum interference device (SQUID). The trace of Neel temperature, TN, in LSO was not signified at this range of temperature in which referring a difference of LSO magnetic properties to the SOFC perovskite cathode. The TN of LSO was predicted below 100 K. This behavior suggested that LSO has good magnetic compatibility with the perovskite cathode.

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Periodical:

Materials Science Forum (Volume 966)

Pages:

415-421

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.966.415

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Online since:

August 2019

Authors:

Yoga Trianzar Malik, Atiek Rostika Noviyanti*, Nur Akbar, Iwan Hastiawan, Togar Saragi, Risdiana Risdiana

Keywords:

Chemical Stability, Hydrothermal Method, Lanthanum Silicate Oxide, Magnetic Properties, Mass Target

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* - Corresponding Author

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