Improvement microwave dielectric properties of Zn2SnO4 ceramics by substituting Sn4+ with Ti4+

Influence of BaCu(B2O5) aid and sintering temperature on microstructures and microwave dielectric properties of inverse-spinel structure Zn2SnO4 ceramics

“…A dielectric constant of 10.2 and a quality factor (Q 9 f) of 39,000 GHz were obtained for Zn 2 SnO 4 ceramics that were sintered at 1225°C for 4 h [5]. The maximum values of dielectric constant and quality factor (Q 9 f) for Zn 2 (Sn 0.95 Ti 0.05 )O 4 ceramics that were sintered at 1225°C for 4 h are 9.9 and 76,900 GHz, respectively [6]. A dielectric constant of 9.6 and a quality factor (Q 9 f) of 87,000 GHz were obtained for Zn 2 (Sn 0.99 Zr 0.01 )O 4 ceramics that were sintered at 1225°C for 4 h [7].…”

Optimized sintering behavior and microwave dielectric properties of Ca1+2xSnSi2x+yO3+6x+2y by composition modulation

“…With the increase in communication frequency, microwave dielectric ceramics with low permittivity ( ε r < 15), high‐quality factor ( Q × f ), and near‐zero temperature coefficient of resonant frequency ( ‒ 10 ppm/°C ≤ τ f ≤ +10 ppm/°C) have attracted the attention of many researchers. Microwave dielectric ceramics with low ε r and high Q × f values mainly include: silicates, 2‐8 germanates, 9‐13 vanadates, 14‐18 and stannates 19‐25 . The Q × f value of stannates (Ca 2 SnO 4 19 and Li 2 O–MgO–SnO 2 24,25 ) exceed 100,000 GHz, and high Q × f value is necessary to improve frequency selectivity.…”

Crystal structure and microwave dielectric properties of La2(Zr1−xTix)3(MoO4)9 (0 ≤ x ≤ 0.1) ceramics

“…Recent research suggests that the performance of ceramics could be improved through adding various A‐ or B‐site ionic substitutions . Typically, numerous studies verified that a certain amount of Ti 4+ substitutions could improve the performance of ceramics . Besides, the substitution of cation with smaller ionic radii could greatly improve the sintering characteristics so that a superior dielectric property could be achieved …”