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Title: Novel monazite type rare earth based phosphates ARP(3)O(10) (A=Ba or Ca; R=La, Ce or Sm) - Studies on their preparation, structure, microstructure and dielectric properties
Authors: Ravindran Nair, K
Prabhakar Rao, P
Amina, B
Chandran, M R
Peter Koshy
Keywords: Rare earth phosphates
Dielectric properties
Issue Date: 2006
Publisher: Elsevier
Citation: Materials Letters 60(15):1796-1799;Jul 2006
Abstract: This paper presents the results of the investigations carried out on the preparation, structure and properties of certain novel rare earth based phosphate compounds such as BaSmP3O10, CaSmP3O10, BaCeP3O10, CaCeP3O10, BaLaP3O10, and CaCeP3O10. The phase identification of these phosphates is done by powder X-ray diffraction (XRD) which clearly shows the formation of monoclinic monazite type structure. The grain morphology of the compounds is studied by Scanning Electron Microscope (SEM). All the compounds except BaLaP3O10 show well-grown grains. BaLaP3O10 is unstable when kept in air for a few days. Dielectric properties of all the new phosphates have been measured as a function of frequency at room temperature. It is seen that these new rare earth phosphates have low dielectric constant and moderate dissipation factor.
ISSN: 0167-577X
Appears in Collections:2006

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