Synthesis and microwave dielectric properties of Li2MgTiO4 ceramics
Source abstract
Abstract
Abstract Rock-salt-structured Li2MgTiO4 ceramic was prepared by the conventional solid-state route, and sintered at 1200–1300 °C for 5 h. The sintering behavior, microstructures and microwave dielectric properties of the Li2MgTiO4 ceramic have been investigated. The structure and microstructure were analyzed by using X-ray diffraction and scanning electron microscopy techniques. The secondary phases of Mg2TiO4 and Li2Mg3Ti4O12 were produced, when sintering temperatures exceeded 1250 °C. The dielectric properties of the Li2MgTiO4 ceramic exhibited a significant dependence on the densification and secondary phases. The Li2MgTiO4 ceramics sintered at 1250 °C showed good microwave dielectric properties: er=15.7, Q×f=91,000 (at 8.1 GHz), and τf=−28 ppm/°C.
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Research context
OpenAlex topics: Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials · Dielectric properties of ceramics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Microwave dielectric properties of La3Ti2TaO11 ceramics with perovskite-like layered structure10.1016/j.jeurceramsoc.2012.06.002 ↗
2. Crystal structure and microwave dielectric properties of LaLuO3 ceramics10.1111/j.1551-2916.2010.03930.x ↗
3. A new low-loss microwave dielectric using (Ca0.8Sr0.2)TiO3-doped MgTiO3 ceramics10.1016/j.matlet.2010.08.046 ↗
4. New high Q microwave dielectric ceramics with rock salt structures: (1−x)Li2TiO3+xMgO system (0≤x≤0.5)10.1016/j.jeurceramsoc.2009.04.030 ↗
5. Crystal chemistry and physical properties of complex lithium spinels Li2MM′3O8 (M=Mg, Co, Ni, Zn; M′=Ti, Ge)10.1039/a800234g ↗
6. Sythesis and study of vibration-spectra of complex oxides with Li2MgTi3O8 and Li2Mg3Ti4O12 compositions
7. Evidence of the formation of a new rock-salt type compound Li2MgTiO4 and of its role on the properties of the Li doped MgTiO310.1016/j.solidstatesciences.2006.01.010 ↗
8. The rock salt oxide Li2MgTiO4: type I dielectric and ionic conductor10.1016/j.materresbull.2005.12.003 ↗
9. Humidity sensitive characteristics of porous Li–Mg–Ti–O–F ceramic materials10.4236/ajac.2013.42011 ↗
10. Low-loss microwave dielectrics using rock salt oxide Li2MgTiO410.1016/j.jallcom.2011.06.010 ↗
11. The effect of non-stoichiometry on the microstructure and microwave dielectric properties of the columbites A2+Nb2O610.1016/j.jeurceramsoc.2006.11.017 ↗
12. Characterization and microwave dielectric properties of M2+Nb2O6 ceramics10.1111/j.1551-2916.2005.00458.x ↗
13. Texture analysis from synchrotron diffraction images with the Rietveld method: dinosaur tendon and salmon scale10.1107/S090904950500138X ↗
14. Dielectric investigation of MIIMIV(PO4)2 double orthophosphates (MII=Ca, Sr, Ba, Pb; MIV=Ti, Zr, Hf, Ge, Sn)10.1016/j.jallcom.2011.06.072 ↗
15. Low-loss microwave dielectrics in the (Mg1−xZnx)2TiO4 ceramics10.1111/j.1551-2916.2008.02614.x ↗
16. Preparation, phase structure and microwave dielectric properties of a new low cost MgLi2/3Ti4/3O4 compound10.1016/j.matchemphys.2012.09.004 ↗
17. Improved high-Q microwave dielectric ceramics in CuO-doped BaTi4O9-BaZn2Ti4O11 system10.1111/j.1551-2916.2012.05086.x ↗
18. Synthesis and microwave dielectric properties of Ca3SnSi2O9 ceramics10.1016/j.jallcom.2012.01.029 ↗
19. Role of lithium borosilicate glass in the decomposition of MgTiO3-based dielectric ceramic during sintering10.1016/j.materresbull.2005.10.020 ↗