Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
BaFe12O19/CoFe2O4 layered permanent magnetic composite material and preparation method thereof
The invention relates to a BaFe12O19/CoFe2O4 layered permanent magnetic composite material and a preparation method thereof. The chemical formula is as follows: (1-x)BaFe12O19/xCoFe2O4, wherein x is the weight percentage of CoFe2O4 and is greater than or equal to 11.1% but less than or equal to 33.3%. The preparation method comprises the following steps: compressing and molding BaFe12O19 and CoFe2O4 powder according to a barrier layer arrangement mode of 2-2 composition in a die; and removing a PVA adhesive and sintering at 1300-1350 DEG C to obtain the BaFe12O19/CoFe2O4 layered permanent magnetic composite material. As the BaFe12O19 powder and CoFe2O4 powder have a full exchange coupling effect, so that interaction between two phases can be effectively inhibited so as to obtain the composite material which is excellent in magnetic performance and dielectric property.
BaFe12O19/CoFe2O4 layered permanent magnetic composite material and preparation method thereof
The invention relates to a BaFe12O19/CoFe2O4 layered permanent magnetic composite material and a preparation method thereof. The chemical formula is as follows: (1-x)BaFe12O19/xCoFe2O4, wherein x is the weight percentage of CoFe2O4 and is greater than or equal to 11.1% but less than or equal to 33.3%. The preparation method comprises the following steps: compressing and molding BaFe12O19 and CoFe2O4 powder according to a barrier layer arrangement mode of 2-2 composition in a die; and removing a PVA adhesive and sintering at 1300-1350 DEG C to obtain the BaFe12O19/CoFe2O4 layered permanent magnetic composite material. As the BaFe12O19 powder and CoFe2O4 powder have a full exchange coupling effect, so that interaction between two phases can be effectively inhibited so as to obtain the composite material which is excellent in magnetic performance and dielectric property.
BaFe12O19/CoFe2O4 layered permanent magnetic composite material and preparation method thereof
YANG HAIBO (Autor:in) / LIU MIAO (Autor:in) / LIN YING (Autor:in) / ZHU JIANFENG (Autor:in) / WANG FEN (Autor:in)
06.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
BaFe12O19/CoFe2O4 permanent-magnet composite ceramic material and preparation method thereof
| Europäisches Patentamt | 2015
BaFe12O19/Y3Fe5O12 permanent magnetic composite ceramic material and preparation method thereof
| Europäisches Patentamt | 2015
CoFe2O4/BaTiO3 layered magnetoelectric composite material and preparation method thereof
| Europäisches Patentamt | 2015
Preparation and microwave absorption property of graphene/BaFe12O19/CoFe2O4 nanocomposite
| British Library Online Contents | 2015
CoFe2O4/0.4BaTiO3-0.6BiFeO3 magnetoelectric composite material and preparation method thereof
| Europäisches Patentamt | 2015