Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 651, Issue -, Pages 290-293Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.08.104
Keywords
Dielectric relaxation; LTCC; Dielectric properties
Categories
Funding
- National Natural Science Foundation of China [50902053]
- Guangzhou nova program [2012J2200013]
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LiMnPO4 with olivine structure is usually widely studied as a promising cathode material for lithium batteries. In present work, LiMnPO4 ceramic has been found to have potential application on low-temperature co-fired ceramic technology. Single phase of LiMnPO4 was synthesized by one-step solid state reaction using ammonium polyphosphate (APP) as PO4 precursor. Compatibility test shows the coexistence of LiMnPO4 and silver at 750 degrees C. Dense LiMnPO4 ceramic with more than 95% theory density can be obtained at 750 degrees C. The dielectric measurement shows the dielectric relaxation which obeys the universal law with fractional exponent. The dielectric spectra are well fitted with the equivalent circuit capacitance parallel with constant phase degree. The optimized microwave dielectric properties show low dielectric constant (8.1), and high quality factor (44,224 GHz). (C) 2015 Elsevier B.V. All rights reserved.
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