Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-power and low-loss garnet ferrite and preparation method thereof
The invention discloses high-power and low-loss garnet ferrite and a preparation method thereof, and belongs to ferrite and a preparation method thereof. The chemical formula of the garnet ferrite provided by the invention is Y < 3-x-y-a > Ca < x > Gd < y > Dy < a > Sn < x > In < b > Fe < 5-x-b-delta > O < 12 >, wherein x is equal to 0.2 to 0.5, y is equal to 0 to 1.4, a is equal to 0 to 0.1, b is equal to 0 to 0.3, and the iron deficiency delta is equal to 0.01 to 0.04. The preparation method provided by the invention comprises the following steps: weighing Y2O3, Fe2O3, CaCO3, Gd2O3, Dy2O3, In2O3 and SnO2 according to the ratio of the chemical formula, mixing, carrying out ball milling, drying, crushing, pre-sintering, adding Bi2O3 into the pre-sintered material, carrying out ball milling, adding PVA into a secondary ball milling material, carrying out mold pressing to obtain a green body, heating the green body to 1150-1250 DEG C, and carrying out heat treatment according to a rapid heating and cooling method. The garnet ferrite material provided by the invention has the excellent characteristics of low ferromagnetic resonance line width, low dielectric loss, high spin wave line width and the like.
本发明公开了一种高功率、低损耗石榴石铁氧体及其制备方法，属于铁氧体及其制备方法。本发明提供的石榴石铁氧体化学式为Y3‑x‑y‑aCaxGdyDyaSnxInbFe5‑x‑b‑δO12，x=0.2～0.5、y=0～1.4、a=0～0.1、b=0～0.3、缺铁量δ=0.01～0.04。本发明提供的制备方法是按化学式配比称取Y2O3、Fe2O3、CaCO3、Gd2O3、Dy2O3、In2O3、SnO2，混合后球磨，烘干粉碎后预烧，预烧料加入Bi2O3、球磨，二次球磨料中加入PVA、模压成生坯，将生坯加热至1150～1250℃，然后按快速升降温方法进行热处理。本发明提供的石榴石铁氧体材料具有低铁磁共振线宽、低介电损耗、高自旋波线宽等优异特性。
High-power and low-loss garnet ferrite and preparation method thereof
The invention discloses high-power and low-loss garnet ferrite and a preparation method thereof, and belongs to ferrite and a preparation method thereof. The chemical formula of the garnet ferrite provided by the invention is Y < 3-x-y-a > Ca < x > Gd < y > Dy < a > Sn < x > In < b > Fe < 5-x-b-delta > O < 12 >, wherein x is equal to 0.2 to 0.5, y is equal to 0 to 1.4, a is equal to 0 to 0.1, b is equal to 0 to 0.3, and the iron deficiency delta is equal to 0.01 to 0.04. The preparation method provided by the invention comprises the following steps: weighing Y2O3, Fe2O3, CaCO3, Gd2O3, Dy2O3, In2O3 and SnO2 according to the ratio of the chemical formula, mixing, carrying out ball milling, drying, crushing, pre-sintering, adding Bi2O3 into the pre-sintered material, carrying out ball milling, adding PVA into a secondary ball milling material, carrying out mold pressing to obtain a green body, heating the green body to 1150-1250 DEG C, and carrying out heat treatment according to a rapid heating and cooling method. The garnet ferrite material provided by the invention has the excellent characteristics of low ferromagnetic resonance line width, low dielectric loss, high spin wave line width and the like.
本发明公开了一种高功率、低损耗石榴石铁氧体及其制备方法，属于铁氧体及其制备方法。本发明提供的石榴石铁氧体化学式为Y3‑x‑y‑aCaxGdyDyaSnxInbFe5‑x‑b‑δO12，x=0.2～0.5、y=0～1.4、a=0～0.1、b=0～0.3、缺铁量δ=0.01～0.04。本发明提供的制备方法是按化学式配比称取Y2O3、Fe2O3、CaCO3、Gd2O3、Dy2O3、In2O3、SnO2，混合后球磨，烘干粉碎后预烧，预烧料加入Bi2O3、球磨，二次球磨料中加入PVA、模压成生坯，将生坯加热至1150～1250℃，然后按快速升降温方法进行热处理。本发明提供的石榴石铁氧体材料具有低铁磁共振线宽、低介电损耗、高自旋波线宽等优异特性。
High-power and low-loss garnet ferrite and preparation method thereof
高功率、低损耗石榴石铁氧体及其制备方法
ZHANG JING (Autor:in) / YAN ZHOUMIN (Autor:in) / LI HUIQIN (Autor:in) / ZHANG YUANSONG (Autor:in) / CHU TAO (Autor:in) / WANG YU (Autor:in)
12.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
PREPARATION METHOD OF LOW LOSS GARNET FERRITE MATERIAL
| Europäisches Patentamt | 2021
Low-loss garnet microwave ferrite magnetic sheet and preparation method thereof
| Europäisches Patentamt | 2020
Garnet ferrite material and preparation method thereof
| Europäisches Patentamt | 2022
High-power high-dielectric-constant microwave garnet ferrite material and preparation method thereof
| Europäisches Patentamt | 2024
Garnet ferrite material with high power and high remanence ratio and preparation method thereof
| Europäisches Patentamt | 2021