Effect of Ni substitution on the microwave dielectric properties of cordierite

High quality factor of (Zn0.6Mg0.4)1.918GeO3.918 microwave dielectrics

“…As shown in Table 4, the average tetrahedral distortion of AO 4 (A ¼ Zn, Mg) and GeO 4 decreased with increasing Mg 2 þ content, indicating that the degree of cation ordering is improved by Mg 2 þ substitution. This result agrees well with the findings of previous report [27], that the Qf value of Mg 2 Al 4 Si 5 O 18 was improved by a small amount of substituted Ni 2 þ ions owing to the formation of equilateral hexagonal rings composed of AlO 4 and SiO 4 tetrahedra.…”

Molecular dynamics simulation for the rapid solidification process of MgO–Al2O3–SiO2 glass–ceramics

“…The basic unit was established with an initial configuration based on the experimental data [23][24][25] The structural parameters of cordierite [23] were refined by the Rietveld method as listed in Table 1. Fig.…”

Phase and Microstructure Evaluation and Microwave Dielectric Properties of Mg1−x Ni x SiO3 Ceramics

“…In others similar studies the substitution of Mg 2+ by Ni 2+ in other various compounds has improved the sinterability and markedly enhanced the Q u f o values. [13][14][15][16][17] Therefore, the aim of the present work was to improve the microwave dielectric properties and sinterability by the substitution of Ni for Mg into the MgSiO 3 system.…”