Microwave dielectric characteristics of Li2(Mg0.94M0.06)Ti3O8 (M=Zn, Co, and Mn) ceramics

Effects of structural characteristics on microwave dielectric properties of Li2Mg(Ti1−xMnx)3O8 ceramics

“…Then they reported the same family of materials Li 2 Mg 1−x Zn x Ti 3 O 8 and Li 2 A 1−x Ca x Ti 3 O 8 (A = Mg, Zn), these materials also had good microwave dielectric properties [6]. With partial replacement of Mg by Zn, Li 2 (Mg 0.94 Zn 0.06 )Ti 3 O 8 ceramics exhibited good microwave dielectric properties with ε r =27.1, Q׃ =44, 800GHz, τ ƒ =1.9ppm/°C which was reported by Wang et al [7]. In our previous study, we studied the microwave dielectric properties of In the following study, the correlations between crystal structure, bond ionicity, lattice energy, bond energy and microwave dielectric properties of Li 2 Mg(Ti 1-x Mn x ) 3 O 8 ceramics were systematically investigated.…”

Correlations between crystal structure and dielectric properties of high-Q materials in rock-salt structure Li2O–MgO–BO2(B = Ti, Sn, Zr) systems at microwave frequency

“…[4][5][6][7][8][9] Among several kinds of dielectric ceramics, a series of compounds based on the Li 2 O-MgO-TiO 2 system were reported for the possible use in microwave applications. [10][11][12][13][14] For example, a cubic spinel Li 2 MgTi 3 O 8 that satised the requirements was reported by George et al 10 The ceramics exhibited good dielectric properties with 3 r ¼ 27.2, Qf ¼ 42 000 GHz, s f ¼ 3.2 ppm C À1 . It was also claimed that the same family of materials Li 2 Mg 1Àx Zn x Ti 3 O 8 and Li 2 A 1Àx Ca x Ti 3 O 8 (A ¼ Mg, Zn) showed good microwave dielectric properties.…”

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

“…Sintering the ceramics in a box type electric furnace and in a microwave furnace would obtain Li 2 ZnTi 3 O 8 ceramics with the grain size of 38 and 7 µm, respectively [256]. Mg, Co, and Zn substitution for Zn in Li 2 ZnTi 3 O 8 increased the quality factor because of the more compact microstructure [257][258][259]. Whereas, the secondary phases were recorded after the introduction of Sr 2+ or (Sr x Ca 1-x ) into Li 2 ZnTi 3 O 8 [260][261][262].…”