| abstract |
The invention belongs to the technical field of electronic ceramics, and specifically provides a low-temperature sintered YIG gyromagnetic ferrite material and a preparation method thereof, which are used to solve the problem that the existing low-temperature sintered YIG gyromagnetic ferrite materials are difficult to satisfy the low-temperature sintering and gyromagnetic properties under the LTCC process. Questions that can be excellently requested. The invention provides a low-temperature sintered YIG gyromagnetic ferrite material: Y 2.1 Bi 0.9 Fe 5‑3x Zn 2x V x O 12 , 0<x≤0.06, with a single garnet structure, and Bi 3+ ions occupy the garnet lattice Dodecahedron, replace part of Y 3+ ions, V 5+ ions occupy octahedron, replace part of Fe 3+ ions, and at the same time introduce metal ions Zn 2+ ions, realize multi-ion substitution and activate YIG ferrite lattice, promote YIG iron While the oxygen body is sintered at a low temperature of 900-960 °C, the microwave characteristics of the material are improved: higher saturation magnetization, lower coercivity, lower microwave dielectric loss and magnetic loss, so that it can meet the technical requirements of LTCC, It provides basic materials for the manufacture of microwave ferrite devices with high integration requirements and small volume requirements. |