Correlations between the structural characteristics and enhanced microwave dielectric properties of V–modified Li3Mg2NbO6 ceramics

Crystal structure, densification, and microwave dielectric properties of Li3Mg2(Nb(1−x)Mox)O6+x/2 (0 ≤ x ≤ 0.08) ceramics

“…In fact, M. Castellanos et al had successfully synthesized Li 3 Mg 2 NbO 6 powders by solid‐state reaction in 1982, and the lattice parameters of obtained Li 3 Mg 2 NbO 6 powders were a = 8.552 Å, b = 5.897 Å, c = 17.721 Å. According to previous studies, the substitution of divalent ions (Zn 2+ , Ca 2+ , Ni 2+ , Co 2+ , Mn 2+ ) at Mg‐site of rock salt structured Li 3 Mg 2 NbO 6 ceramics have obviously improved the microwave dielectric properties, so did the substitution of pentavalent ions (Sb 5+ , V 5+ ) at Nb‐site . The improvement mentioned above might be related to the differences in the bond between cations and anions in different oxygen octahedrons.…”

Microwave dielectric properties of low-temperature-fired MgNb2O6 ceramics for LTCC applications

“…10,11 (4) Use reasonable ion substitution. 12,13 (5) Select appropriate low-melting glass or oxide to reduce the sintering temperature. The commonly used low-melting glasses are PbO- 14,15 Binary magnesium niobate ceramics with rhombic columnar structure are widely investigated because of their excellent microwave dielectric properties.…”

Crystal structure and enhanced microwave dielectric properties of Ta5+ substituted Li3Mg2NbO6 ceramics

“…Therefore, how to improve the dielectric properties remains a central tenant of materials research and design efforts for microwave engineering applications . In order to obtain the desired dielectric materials, a theory relating structure and microwave dielectric properties has been proposed …”

“…[11][12][13][14][15] In order to obtain the desired dielectric materials, a theory relating structure and microwave dielectric properties has been proposed. 12,[16][17][18][19] Recently, ceramic materials containing lithium having a rock-salt structure possess unique potential for practical applications due to suitable microwave dielectric properties. 20 Bian et al have researched the dielectric performance of Li 3 Mg 2 NbO 6 ceramics and discussed the structural evolution using X-ray diffractometry, infrared reflectivity, and Raman spectroscopy.…”