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The effects of inequivalent La3+ introduction on the structure and dielectric properties of SrTiO3 ceramic at microwave range.
- Source :
-
Materials Chemistry & Physics . Sep2018, Vol. 216, p339-344. 6p. - Publication Year :
- 2018
-
Abstract
- Inequivalent La 3+ is firstly utilized to modify the microwave dielectric properties in SrTiO 3 ceramic system. For the general composition of Sr 1-x La 2x/3 TiO 3 (0 ≤ x ≤ 1), the effects of La 3+ introduction on the phase transition and structural changes are systematically investigated. The correlation between A-site ordering degree and dielectric loss in microwave range is established, and the temperature coefficient of resonant frequency is also dramatically improved. When x = 0.945, excellent dielectric properties of ε r ∼89.3, Qf ∼15243 GHz (@4.3 GHz) and τ f ∼ 160 ppm/°C are obtained, making it potential to meet the application requirements of 5G technologies. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MICROWAVES
*DIELECTRIC properties
*CERAMICS
*TEMPERATURE
*ATTENUATION coefficients
Subjects
Details
- Language :
- English
- ISSN :
- 02540584
- Volume :
- 216
- Database :
- Academic Search Index
- Journal :
- Materials Chemistry & Physics
- Publication Type :
- Academic Journal
- Accession number :
- 130949768
- Full Text :
- https://doi.org/10.1016/j.matchemphys.2018.06.019