CN106573848A - 用于超高频天线的Co2Z型铁氧体复合材料 - Google Patents

用于超高频天线的Co2Z型铁氧体复合材料 Download PDF

Info

Publication number
CN106573848A
CN106573848A CN201580041623.6A CN201580041623A CN106573848A CN 106573848 A CN106573848 A CN 106573848A CN 201580041623 A CN201580041623 A CN 201580041623A CN 106573848 A CN106573848 A CN 106573848A
Authority
CN
China
Prior art keywords
ferrite
ferrite composition
hexad
method described
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201580041623.6A
Other languages
English (en)
Other versions
CN106573848B (zh
Inventor
Y·陈
V·哈里斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rogers Corp
Original Assignee
Northeastern University Boston
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northeastern University Boston filed Critical Northeastern University Boston
Publication of CN106573848A publication Critical patent/CN106573848A/zh
Application granted granted Critical
Publication of CN106573848B publication Critical patent/CN106573848B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
    • H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/006—Compounds containing, besides cobalt, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • C04B35/6262—Milling of calcined, sintered clinker or ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/638—Removal thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H01F1/348—Hexaferrites with decreased hardness or anisotropy, i.e. with increased permeability in the microwave (GHz) range, e.g. having a hexagonal crystallographic structure
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • C04B2235/3274—Ferrites
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • C04B2235/3277—Co3O4
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3289—Noble metal oxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6583—Oxygen containing atmosphere, e.g. with changing oxygen pressures
    • C04B2235/6585—Oxygen containing atmosphere, e.g. with changing oxygen pressures at an oxygen percentage above that of air
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
    • C04B2235/81—Materials characterised by the absence of phases other than the main phase, i.e. single phase materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
    • C04B2235/83—Ferrites containing Fe2+
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
    • C04B2235/85—Intergranular or grain boundary phases
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties

Abstract

本发明提供包含Ba、Co和Ir并具有Z型六角铁氧体相和Y型六角铁氧体相的铁氧体组合物。所述铁氧体组合物具有下式：Ba3Co(2+x)IrxFe(24‑2x)O41，其中x＝0.05‑0.20。所述组合物具有相等或基本相等的磁导率和介电常数，同时保持低的磁损耗因子和介电损耗因子。所述组合物适合于超高频应用例如高频和微波天线。

Description

用于超高频天线的Co2Z型铁氧体复合材料
相关申请的交叉引用
本申请根据35§119(e)要求2014年7月31日提交的标题为“Low loss factor Co2Zferrite composites with identical permittivity and permeability for ultra-high frequency applications(.3-1GHz)”的美国临时申请号62/031,369的优先权，其公开内容援引加入到本文。
关于联邦赞助研究或开发的声明
N/A
背景技术
为了满足在各种商业和国防相关工业中特别感兴趣的超高频(UHF)、L波段和S波段应用中的设备不断增长的需求，需要改进性能和小型化。作为雷达和现代无线通信系统中的关键组件，具有紧凑尺寸的天线部件在持续的被开发。然而，开发用于如此高频应用的铁氧体材料是有挑战性的。已知的铁氧体材料在高频下表现出相对高的磁损耗，这不能满足实用天线设计的要求。
发明内容
本发明涉及一种铁氧体组合物，其可用作超高频(UHF)范围内工作的电气设备中的磁性材料。所述铁氧体组合物包含Ba、Co和Ir，并且包括Z型六角铁氧体相和Y型六角铁氧体相。本发明还涉及制备所述铁氧体组合物的方法和包含该铁氧体组合物的部件或设备。
本发明的其它方面包括以下：
1.一种包含Ba、Co、Fe和Ir的铁氧体组合物，其中所述铁氧体组合物包括Z型六角铁氧体相和Y-型六角铁氧体相。
2.第1项所述的铁氧体组合物，其具有下式：
Ba3Co(2+x)IrxFe(24-2x)O41
其中x＝0.05–0.20。
3.项目1-2中任一项所述的铁氧体组合物，其中x＝0.12-0.15。
4.项目1-3中任一项所述的铁氧体组合物，其中所述Z型六角铁氧体相占65体积％-97.5体积％，所述Y型六角铁氧体相占2.5体积％-35体积％。
5.项目1-3中任一项所述的铁氧体组合物，其中所述Z型六角铁氧体相占65体积％-97.5体积％，以及所述Y型六角铁氧体相占余量。
6.项目1-4中任一项所述的铁氧体组合物，其还包含0.2-5.0重量％的Bi2O3。
7.项目1-4和6中任一项所述的铁氧体组合物，其中Bi2O3存在于Z型六角铁氧体相和Y型六角铁氧体相的晶界处。
8.项目1-7中任一项所述的铁氧体组合物，其中所述铁氧体组合物具有约7-约8的实介电常数(real permittivity)。
9.项目1-8中任一项所述的铁氧体组合物，其中所述铁氧体组合物具有约7-约8的实磁导率。
10.项目1-9中任一项所述的铁氧体组合物，其中所述铁氧体组合物的实介电常数与铁氧体组合物的实磁导率在10％以内相等。
11.项目1-10中任一项所述的铁氧体组合物，其中所述铁氧体组合物具有与自由空间阻抗在3％内相匹配的特性阻抗。
12.项目1-11中任一项所述的铁氧体组合物，其中所述铁氧体组合物在0.65-0.85GHz的频率范围内具有0.05-0.07的介电损耗角正切tanδε。
13.项目1-12中任一项所述的铁氧体组合物，其中所述铁氧体组合物在0.65-0.85GHz的频率范围内具有0.07-0.29的磁损耗角正切tanδμ。
14.项目1-13中任一项所述的铁氧体组合物，其中所述铁氧体组合物在0.8GHz的频率下的介电损耗因子tanδε/ε’＝0.008±20％。
15.项目1-14中任一项所述的铁氧体组合物，其中所述铁氧体组合物在0.8GHz的频率下的磁损耗因子tanδμ/μ’＝0.037±10％。
16.一种包含项目1-15中任一项所述的铁氧体组合物的部件。
17.项目1-16中任一项所述的部件，其中所述部件是天线、滤波器、电感器、环形器、或移相器。
18.项目1-17中任一项所述的部件，其中所述部件是微波天线。
19.项目1-18中任一项所述的部件，其中所述部件是在等于或大于0.1GHz的频率下可操作的天线。
20.项目1-19中任一项所述的部件，其中所述部件是在等于或大于0.3GHz的频率下可操作的天线。
21.项目1-18中任一项所述的部件，其中所述部件是在0.1-1.5GHz的频率下可操作的天线。
22.项目1-18和21中任一项所述的部件，其中所述部件是在0.3-1.0GHz的频率下可操作的天线。
23.一种制备铁氧体组合物的方法，其包括：
(a)提供包括Fe、Ba、Co和Ir的六角铁氧体相前体化合物，
(b)在空气中煅烧所述六角铁氧体相前体化合物以形成包含Z型六角铁氧体相和Y型六角铁氧体相的材料。
24.项目23所述的方法，其中所述六角铁氧体相前体化合物包括Fe、Ba、Co和Ir的氧化物。
25.项目23-24中任一项所述的方法，其中所述六角铁氧体相前体化合物包括IrO2、BaCO3、Co3O4和Fe2O3。
26.项目23-25中任一项所述的方法，其中所述六角铁氧体相前体化合物包括0.2-2重量％的IrO2、20-25重量％的BaCO3、5-7重量％的Co3O4和68-74重量％的Fe2O3。
27.项目23-26中任一项所述的方法，其中在步骤(b)中，将所述前体化合物在1000-1200℃下煅烧2-10小时。
28.项目23-27中任一项所述的方法，其还包括在步骤(b)之后加入Bi2O3。
29.项目23-28中任一项所述的方法，其中所述Bi2O3为0.2-5.0重量％。
30.项目23-29中任一项所述的方法，其还包括：
(c)粉碎在步骤(b)中形成的材料形成粉末混合物，以及
(d)烧结所述粉末混合物。
31.项目23-30中任一项所述的方法，其中所述粉末混合物是在1250-1280℃下烧结。
32.项目23-31中任一项所述的方法，其中所述粉末混合物被烧结2-10小时。
33.项目23-32中任一项所述的方法，其中所述粉末混合物在氧气气氛中烧结。
34.项目23-33中任一项所述的方法，其还包括在步骤(d)之前将粉末混合物形成为压块。
35.项目23-34中任一项所述的方法，其还包括向所述粉末混合物中加入粘合剂。
36.项目23-35中任一项所述的方法，其中所述粘合剂选自聚乙烯醇、甲基纤维素、聚乙二醇和聚(碳酸亚烷基酯)。
37.项目23-36中任一项所述的方法，其中所述聚乙烯醇占粉末混合物的8重量％-12重量％。
附图说明
从下面的详细描述结合附图可以更充分地理解本发明，其中：
图1A是M型相六角铁氧体的示意晶体结构图；
图1B是Z型相六角铁氧体的示意晶体结构图；
图1C是Y型相六角铁氧体的示意晶体结构图；
图2是本发明铁氧体组合物的扫描电子显微镜照片；
图3是在各种铱浓度(x)下复合铁氧体样品的X射线衍射图案的示意图；
图4是在各种铱浓度(x)下的Z型和Y型相的相百分比的示意图；
图5是在不同Co2Z体积分数下显示了计算近似值和实验数据的实介电常数和磁导率图；
图6A是在0.8GHz频率下各种铱浓度下复合铁氧体的实介电常数和磁导率图。
图6B是显示在0.8GHz下各种铱浓度下介电常数和导磁率和介电损耗角正切tanδε和磁损耗角正切tanδμ的百分比变化的图；以及
图7是在0.3-1.0GHz下，样品A、B和C三种样品的实介电常数和实磁导率和介电和磁损耗角正切图。
具体实施方式
本申请通过引用标题为“Low loss factor Co2Z ferrite composites withidentical permittivity and permeability for ultra-high frequency applications(0.3-1GHz)”美国临时申请号62/031,369的全部公开内容并入本申请。
六角晶型铁氧体或六角铁氧体是一种具有六角形晶体结构并显示磁性能的铁氧化物陶瓷化合物。六角铁氧体的数个类型或家族是已知的，包括Z型铁氧体、Ba3Me2Fe24O41和Y型铁氧体，Ba2Me2Fe12O22，其中Me可以是小的2+阳离子例如Co、Ni或Zn。Ba可以被Sr取代。其它的六角铁氧体类型包括M型铁氧体((Ba,Sr)Fe12O19)、W型铁氧体((Ba,Sr)Me2Fe16O27)、X型铁氧体((Ba,Sr)2Me2Fe28O46)和U型铁氧体((Ba,Sr)4Me2Fe36O60)。
相比于具有高磁导率和低截止频率的尖晶石铁氧体，某些六角铁氧体如钴取代钡的Y型(Co2Y)和Z型(Co2Z)六角铁氧体具有高得多的铁磁共振频率和磁导率。这些磁性能使得这些六角铁氧体在高频应用和设备例如天线、滤波器、电感器和环形器中是引人注意的。超高频(UHF)范围是0.3GHz-3GHz。微波频率范围是0.3GHz-300GHz。但是，设计具有相对磁导率μ和相对介电常数ε相等或基本上相等以及具有低磁和介电损耗角正切(tanδμ,tanδε)和损耗因子(tanδμ/μ,tanδε/ε)的高频和微波设备一直是有挑战性的。(如本文所使用的，磁导率和介电常数数值分别是相对磁导率和相对介电常数。)
本发明涉及适用于在超高频(UHF)和微波应用中操作的铁氧体组合物。特别地，提供了包含Ba、Co和Ir以及具有Z型六角铁氧体相和Y型六角铁氧体相的铁氧体组合物。所述Y型相作为第二相出现，掺杂铱，有助于降低介电和磁损耗。所述铁氧体组合物具有下式：
Ba3Co(2+x)IrxFe(24-2x)O41
在一些实施方案中，x＝0.05-0.2。在另一些实施方案中，x＝0.12-0.15。
Y型和Z型六角铁氧体的一些性质显示在表1中。
表1：
图1A-1C阐释了M型相、Y型相和Z型相六角铁氧体的示意晶体结构图。所述铁氧体化合物由R、S和T层或这些层的微小改性制成。
在所述铁氧体组合物的一些实施方案中，X型相可以占65重量％-97.5重量％，剩余为Y型相。在一些实施方案中，晶粒大小可以为100-200μm。图2显示了铁氧体组合物的显微照片。
所述铁氧体组合物在UHF范围内具有低的介电损耗因子和磁损耗因子。在一些实施方案中，所述铁氧体组合物在0.8GHz的频率下具有介电损耗因子tanδε/ε’＝0.008±20％以及磁损耗因子tanδμ/μ’＝0.037±10％。
在一些实施方案中，可以将Bi2O3添加到铁氧体组合物中。存在于Z型六角铁氧体相和Y型六角铁氧体相的晶界处的Bi2O3的添加有助于获得具有的磁导率和介电常数在数值上相等或基本上相等，同时保持低的磁和介电损耗因子的组合物。在一些实施方案中，Bi2O3可以占0.2-5.0重量％。
在一些实施方案中，所述铁氧体组合物具有约7-约8的实介电常数和约7-约8的实磁导率。在一个实施方案中，铁氧体组合物的实介电常数与实磁导率在10％以内相等。在其它实施方案中，实介电常数和实磁导率可以在15％、5％、2％或1％以内相等。所述铁氧体组合物可以具有在3％内与自由空间的阻抗相匹配的特性阻抗。在其它实施方案中，所述特性阻抗可以在5％、2％或1％内与自由空间的阻抗相匹配。
所述铁氧体组合物可以通过任何适合的方式制备。在一个实施方案中，所述铁氧体组合物可以通过提供包括Ir、Ba和Co的六角铁氧体相前体化合物来制备。将所述前体化合物在空气中煅烧以形成包含Z型六角铁氧体相和Y型六角铁氧体相的材料。可将得到的材料粉碎以形成粉末混合物，所述粉末混合物可成型和烧结以形成实体。
在一个示例性实施方案中，提供IrO2、BaCO3、Co3O4和Fe2O3的混合物。适合的量是0.2-2重量％的IrO2、20-25重量％的BaCO3、5-7重量％的Co3O4和68-74重量％的Fe2O3。将混合物在空气中煅烧以形成Z型和Y型六角铁氧体相。将所得的材料粉碎并球磨以形成粉末混合物。在煅烧步骤之后，可将0.2-5.0重量％的Bi2O3加入到粉末混合物中。将粉末混合物形成为压块，其中加入粘合剂以助于保持压块形状。适合的粘合剂包括聚乙烯醇、甲基纤维素、聚乙二醇或聚(碳酸亚烷基酯)。粘合剂可以占粉末混合物的8-12重量％。粘合剂在随后的烧结过程中烧尽。
将压块在适合的温度下烧结适合的时间。在一些实施方案中，压块可以在1250-1280℃下烧结。在一些实施方案中，将压块烧结2-10小时。该压块可以在氧气气氛中烧结以有助于减少介电损耗。例如，O2气体可以以0.5-2l/m的流速流入。
取决于应用，可以按照任何期望的方式，例如通过切割和抛光来完成烧结部件。
在其它实施方案中，粉末混合物可以在烧结之前通过例如流延成型或增材制造的机理形成。
铁氧体组合物可用于在UHF范围内可操作的各种设备，例如高频或微波天线、滤波器、电感器、环形器或移相器。在一些实施方案中，所述设备可以在大于0.1GHz的频率下操作，在其它实施方案中可以在大于0.3GHz的频率下操作。所述设备可以在0.1-1.5GHz的频率范围上操作。在其它实施方案中，所述设备可以在0.3-1.0GHz的频率范围上操作。这样的设备可以用于商业和军事用途、气象雷达、科学通信、移动和无线通信、自动驾驶汽车、飞行器通信、空间通信、卫星通信和监视。
实施例1
具有组成Ba3Co2+xIrxFe24-2xO41的多晶Co2Z铁氧体通过陶瓷工艺制备，其中x＝0、0.05、0.10、0.15和0.20。将BaCO3、IrO2、Co3O4和Fe2O3起始原料在空气中在1000℃下煅烧6小时以形成铁氧体相，然后粉碎并球磨。制备包含90体积％的铁氧体细粉和10体积％的聚乙烯醇(PVA)粘合剂的混合物，并且将其压制成外径为7mm、内径为3mm和宽度为约2mm的环形线圈。该样品大小适合用于微波测量。将该铁氧体样品在氧气气氛中在1250-1280℃下烧结4小时。
随着铱用量的增加，所得的铁氧体组合物的结晶结构的X射线衍射(XRD)表征显示出Z型相伴随着增加量的Y型相。Y型相作为第二相出现，掺杂有铱，有助于降低介电和磁损耗。测量的微波介电和磁性质表明，在0.8GHz下，当添加x＝0.12-0.15的铱时，损耗tanδε和损耗tanδμ分别降低80％和90％。
结晶结构使用Philips X'pert PRO衍射仪，使用CuKα辐射在室温下以θ-2θ几何通过X射线衍射测量表征。复介电常数和磁导率谱图在0.3-1GHz的频率范围内使用AgilentE864A 45MHz-50GHz PNA系列网络分析仪和7mm HP 85050C精密谱线(precision airline)测量。
参照图3，所有衍射线均被指定为Z型或Y型六角铁氧体结晶相。在图3中，Z型相由实线表示，Y型相由峰上的点表示。当在高于1200℃的温度下热处理时，Z型相是主相。铱的量由x＝0、0.05、0.1、0.15和0.2表示。由图3可以看出，当不存在铱x＝0时，结果显示为几乎纯的Z型相，只有少量的Y型相。随着铱的增加，不仅Y型峰的量增加，而且峰强度也增加。基于XRD的数据计算Z型和Y型相的量，百分比显示在图4中。随着铱的量x增加到0.2，Z型相的重量百分比从97.5％降低到65.1％。可以看出，用铱掺杂将晶体结构从准单相变为两相系统。
为了研究对复合铁氧体微波性能的影响，使用了有效介质近似法。最常见的理论是Maxwell-Garnett(MG)和Bruggeman方程。MG模型通常预期对小或高填充因子有效，而在Bruggeman模型中，两相贡献相等。因此，Bruggeman模型通常用于中等填充因子。在本发明的情况中，Z型相是主导的，因此应用MG近似。假设复合铁氧体由具有随机分布的球形夹杂物组成，所述铁氧体组合物的有效介电常数εe和磁导率μe由下式给出：
其中εZ、εY、μY和μZ分别是Z型和Y型相的相对介电常数和相对磁导率，p是Z型相的体积分数。体积分数发生变化的铁氧体组合物的有效介电常数和磁导率的实部示于图5中。圆点和正方形符号表示实验数据，虚线是应用方程式(1)和(2)的最佳拟合结果。由于Y型和Z型铁氧体具有几乎相同的体积密度，～5.3g/cm3，计算的相重量百分比可以容易地转换成体积分数，其在图3中沿x轴显示。实验和理论之间的关系很好地符合MG近似。
在0.8GHz频率下受铱掺杂的影响的复合铁氧体的实介电常数值和实磁导率的值示于图6A中。图6A中的四条曲线表示实介电常数、实磁导率、介电损耗和磁损耗。对于轻度掺杂的样品，四个参数明显下降。随着铱含量的进一步增加，这些参数下降得更缓慢。在图6B中可以看出，损耗tanδε和损耗tanδμ的值在x＝0.12处达到最小值，然后增加。图6B显示了在各种铱含量下参数的百分比变化。对于铱含量为x＝0.12和0.15，损耗tanδε和损耗tanδμ的值分别减少了80％和90％，而实介电常数和实磁导率分别降低30％和50％。介电和磁损耗的减少几乎是实介电常数和磁导率的两倍。
实施例2
还检测了Bi2O3添加剂对复合铁氧体的实和复介电常数和磁导率的影响。制备标记为A、B和C的具有不同Bi2O3量(0.2-5.0重量％)和铱量(x＝0.12-0.15)的样品用于微波测量。Bi2O3和Ir的量列在表2中。
表2：
A B C
Bi2O3 2–5wt.％ 0.5–3wt.％ 0.1–1.0wt.％
Ir x＝0.12–0.20 x＝0.08–0.15 x＝0.12–0.20
图5示出了在0.3GHz至1GHz的频率范围内这三个样品的相对实介电常数ε’和实磁导率μ’谱图以及介电和磁损耗。所有三个样品的实介电常数ε’值与它们的实磁导率μ’值非常接近。实介电常数ε’和实磁导率μ’几乎相等的情况下样品C在与自由空间的阻抗匹配中显示出最佳性能。至于介电和磁损耗，与钡Z型铁氧体报道的数据(例如，磁损耗tanδμ为0.5-1.0，在0.8GHz下)相比，所有三个样品在0.5GHz至0.9GHz的频率下都具有相对较低的损耗tanδε和损耗tanδμ。样品A在0.6-1.0GHz的高频范围内显示出比样品B和C更低的磁损耗。表3总结了在五个不同的频率下实介电常数ε’、实磁导率μ’、损耗tanδε和损耗tanδμ以及损耗因子tanδε/ε’和tanδμ/μ’的详细结果。发现在0.65GHz-0.85GHz的频率范围内，样品C的μ’/ε’的值基本上等于1.0，表明特性阻抗与自由空间阻抗相同。所有样品的损耗tanδε在整个频率范围内保持很低，约0.07，在0.65-0.85GHz的频率范围内为0.05-0.09。在频率从0.65GHz到0.85GHz时，损耗tanδμ从0.07增加到0.29。这是频率接近样品的FMR频率的结果。此外，为了对铁氧体材料进行综合的性能评价，在0.8GHz下损耗因子(tanδε/ε’和tanδμ/μ’)也分别计算为0.008和0.037。如上所示，本发明的铁氧体组合物在0.8GHz下的磁损耗0.27和在0.8GHz下的损耗因子0.037，在UHF下报道的铁氧体中都代表最低值。
表3：样品A、B和C在五个不同频率下的ε’、μ’、tanδε、tanδμ和损耗tanδε以及损耗tanδμ
应当理解，本文所描述的实施方案的各个特征可以以不同的方式组合。例如，一个实施方案中描述的特征可以包括在另一个实施方案中，即使没有结合该实施方案的明确描述。
本发明已经结合特定优选实施方案进行了描述。应当理解，本发明不限于所示和所描述的构造、操作、精确材料或实施方案的确切描述，以及各种修改、等同物的替换、组合物的改变以及本文公开的实施方案的其它对本领域技术人员显而易见的改变。

Claims (37)

1.一种铁氧体组合物，其包含Ba、Co、Fe和Ir，其中所述铁氧体组合物包含Z型六角铁氧体相和Y型六角铁氧体相。
2.权利要求1所述的铁氧体组合物，其具有下式：
Ba3Co(2+x)IrxFe(24-2x)O41
其中x＝0.05–0.20。
3.权利要求2所述的铁氧体组合物，其中x＝0.12-0.15。
4.权利要求1所述的铁氧体组合物，其中所述Z型六角铁氧体相为65体积％-97.5体积％，以及所述Y型六角铁氧体相为2.5体积％-35体积％。
5.权利要求1所述的铁氧体组合物，其中所述Z型六角铁氧体相为65体积％-97.5体积％，以及所述Y型六角铁氧体相为余量。
6.权利要求1所述的铁氧体组合物，其还包含0.2-5.0重量％的Bi2O3。
7.权利要求6所述的铁氧体组合物，其中，所述Bi2O3存在于所述Z型六角铁氧体相和Y型六角铁氧体相的晶界处。
8.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物具有约7-约8的实介电常数。
9.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物具有约7-约8的实磁导率。
10.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物的实介电常数与所述铁氧体组合物的实磁导率在10％以内是相等的。
11.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物具有与自由空间阻抗在3％内相匹配的特性阻抗。
12.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物在0.65-0.85GHz的频率范围内具有0.05-0.07的介电损耗角正切tanδε。
13.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物在0.65-0.85GHz的频率范围内具有0.07-0.29的磁损耗角正切tanδμ。
14.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物在0.8GHz的频率下具有的介电损耗因子tanδε/ε’＝0.008±20％。
15.权利要求1所述的铁氧体组合物，其中所述铁氧体组合物在0.8GHz的频率下具有的磁损耗因子tanδμ/μ’＝0.037±10％。
16.一种部件，其包含权利要求1所述的铁氧体组合物。
17.权利要求16所述的部件，其中所述部件是天线、滤波器、电感器、环形器、或移相器。
18.权利要求16所述的部件，其中所述部件是微波天线。
19.权利要求18所述的部件，其中所述部件是在等于或大于0.1GHz的频率下可操作的天线。
20.权利要求18所述的部件，其中所述部件是在等于或大于0.3GHz的频率下可操作的天线。
21.权利要求18所述的部件，其中所述部件是在0.1-1.5GHz的频率下可操作的天线。
22.权利要求18所述的部件，其中所述部件是在0.3-1.0GHz的频率下可操作的天线。
23.一种制备铁氧体组合物的方法，其包括：
(a)提供包括Fe、Ba、Co和Ir的六角铁氧体相前体化合物，
(b)在空气中煅烧所述六角铁氧体相前体化合物以形成包含Z型六角铁氧体相和Y型六角铁氧体相的材料。
24.权利要求23所述的方法，其中所述六角铁氧体相前体化合物包括Fe、Ba、Co和Ir的氧化物。
25.权利要求23所述的方法，其中所述六角铁氧体相前体化合物包括IrO2、BaCO3、Co3O4和Fe2O3。
26.权利要求25所述的方法，其中所述六角铁氧体相前体化合物包括0.2-2重量％的IrO2、20-25重量％的BaCO3、5-7重量％的Co3O4和68-74重量％的Fe2O3。
27.权利要求23所述的方法，其中在步骤(b)中，将所述前体化合物在1000-1200℃下煅烧2-10小时。
28.权利要求23所述的方法，其还包括在步骤(b)之后加入Bi2O3。
29.权利要求28所述的方法，其中所述Bi2O3为0.2-5.0重量％。
30.权利要求23所述的方法，其还包括：
(c)粉碎在步骤(b)中形成的所述材料以形成粉末混合物，和
(d)烧结所述粉末混合物。
31.权利要求30所述的方法，其中所述粉末混合物是在1250-1280℃下烧结。
32.权利要求30所述的方法，其中所述粉末混合物被烧结2-10小时。
33.权利要求30所述的方法，其中所述粉末混合物在氧气气氛中烧结。
34.权利要求30所述的方法，其还包括在步骤(d)之前将所述粉末混合物形成为压块。
35.权利要求30所述的方法，其还包括向所述粉末混合物中加入粘合剂。
36.权利要求35所述的方法，其中所述粘合剂选自聚乙烯醇、甲基纤维素、聚乙二醇和聚(碳酸亚烷基酯)。
37.权利要求36所述的方法，其中所述聚乙烯醇占所述粉末混合物的8重量％-12重量％。
CN201580041623.6A 2014-07-31 2015-07-31 用于超高频天线的Co2Z型铁氧体复合材料 Active CN106573848B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201462031369P 2014-07-31 2014-07-31
US62/031,369 2014-07-31
PCT/US2015/043075 WO2016064459A2 (en) 2014-07-31 2015-07-31 Co2 z-type ferrite composite material for use in ultra-high frequency antennas

Publications (2)

Publication Number Publication Date
CN106573848A true CN106573848A (zh) 2017-04-19
CN106573848B CN106573848B (zh) 2020-08-28

Family

ID=55761733

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580041623.6A Active CN106573848B (zh) 2014-07-31 2015-07-31 用于超高频天线的Co2Z型铁氧体复合材料

Country Status (6)

Country Link
US (1) US10468169B2 (zh)
EP (1) EP3180294B1 (zh)
JP (1) JP6637959B2 (zh)
KR (1) KR102249311B1 (zh)
CN (1) CN106573848B (zh)
WO (1) WO2016064459A2 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109911950A (zh) * 2019-01-31 2019-06-21 南京邮电大学 一种掺铱的钌酸锶掺杂材料、制备方法及应用
CN112166003A (zh) * 2018-04-10 2021-01-01 通用电气公司 热处理增材制造的铁磁部件的方法
TWI833031B (zh) * 2019-08-05 2024-02-21 美商羅傑斯公司 摻雜釕的z型六方晶系鐵氧體、包含彼之複合物與製品、以及彼之製備方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106573848B (zh) * 2014-07-31 2020-08-28 罗杰斯公司 用于超高频天线的Co2Z型铁氧体复合材料
GB2550737B (en) 2015-01-30 2021-11-24 Rogers Corp Mo-Doped Co2Z-Type Ferrite Composite Material For Use in Ultra-High Frequency Antennas
WO2017127388A1 (en) 2016-01-18 2017-07-27 Rogers Corporation A magneto-dielectric material comprising hexaferrite fibers, methods of making, and uses thereof
WO2019164732A1 (en) 2018-02-23 2019-08-29 Rogers Corporation Polytetrafluoroethylene hexaferrite composites
US11705637B2 (en) 2018-10-11 2023-07-18 Northeastern University Magnetodielectric metamaterials and articles including magnetodielectric metamaterials
WO2021011330A1 (en) 2019-07-16 2021-01-21 Rogers Corporation Magneto-dielectric materials, methods of making, and uses thereof
US11679991B2 (en) 2019-07-30 2023-06-20 Rogers Corporation Multiphase ferrites and composites comprising the same
TW202116700A (zh) 2019-09-24 2021-05-01 美商羅傑斯公司 鉍釕ｍ型六方晶系鐵氧體、包含彼之組合物及複合物、及製造方法
US11783975B2 (en) 2019-10-17 2023-10-10 Rogers Corporation Nanocrystalline cobalt doped nickel ferrite particles, method of manufacture, and uses thereof
WO2021167785A1 (en) 2020-02-21 2021-08-26 Rogers Corporation Z-type hexaferrite having a nanocrystalline structure
US20230386723A1 (en) * 2020-10-14 2023-11-30 Ryota Kubo Noise filter, and method for manufacturing ferrite core
CN115594498B (zh) * 2021-06-28 2023-08-22 浙江工业大学 一种低温粘结z型铁氧体材料及其制备方法与应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1911857A (zh) * 2006-09-05 2007-02-14 电子科技大学 一种低温烧结铁氧体材料用预烧粉料的制备方法
CN101913850A (zh) * 2010-07-06 2010-12-15 电子科技大学 一种高磁导率低烧z型六角铁氧体材料的制备方法
CN102408202A (zh) * 2011-08-17 2012-04-11 电子科技大学 一种微带天线复合基板材料及其制备方法
CN103304186A (zh) * 2013-07-03 2013-09-18 电子科技大学 一种铁氧体基复合磁介天线基板材料及其制备方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162603A (en) * 1963-02-01 1964-12-22 Jack A Kohn Method of growing iridium substituted single crystal using bismuth oxide flux
FR1472484A (zh) 1965-03-25 1967-05-24
US5593612A (en) 1990-11-30 1997-01-14 The United States Of America As Represented By The Secretary Of The Navy U, W, X, Y and Z-type ferrites
US5835003A (en) 1995-09-29 1998-11-10 Hewlett-Packard Company Colossal magnetoresistance sensor
JP2000235916A (ja) * 1999-02-17 2000-08-29 Nobuyuki Hiratsuka 高周波用磁性材料
JP2000277973A (ja) 1999-03-23 2000-10-06 Ten Kk フェライト含有繊維体及びその製造方法
JP3551863B2 (ja) 1999-10-27 2004-08-11 株式会社村田製作所 複合磁性材料およびインダクタ素子
US7411565B2 (en) 2003-06-20 2008-08-12 Titan Systems Corporation/Aerospace Electronic Division Artificial magnetic conductor surfaces loaded with ferrite-based artificial magnetic materials
JP5165231B2 (ja) 2006-11-29 2013-03-21 旭化成イーマテリアルズ株式会社 磁性粉含有樹脂組成物
US7815820B2 (en) 2007-10-18 2010-10-19 General Electric Company Electromagnetic interference shielding polymer composites and methods of manufacture
US8524190B2 (en) * 2008-05-30 2013-09-03 Skyworks Solutions, Inc. Enhanced hexagonal ferrite material and methods of preparation and use thereof
KR20120045712A (ko) * 2010-11-01 2012-05-09 (주)소노비젼 고주파 응용을 위한 Ｃｏ₂Ｚ형 페라이트, 이의 제조방법 및 이를 이용한 안테나
JP5796699B2 (ja) 2010-11-12 2015-10-21 戸田工業株式会社 折返しダイポールアンテナ、該折返しダイポールアンテナを用いたｒｆタグ
EP2640527A4 (en) 2010-11-15 2016-03-09 Trustees Of The University Of Alabama For And On Behalf Of The University Of Alabama Board Of M-TYPE HEXAFERRITE ANTENNAS FOR USE IN WIRELESS COMMUNICATION DEVICES
WO2012103020A2 (en) 2011-01-24 2012-08-02 Skyworks Solutions, Inc. Specialty materials processing techniques for enhanced resonant frequency hexaferrite materials for antenna applications and other electronic devices
US8703391B1 (en) 2011-11-29 2014-04-22 Sandia Corporation Polymeric matrix materials for infrared metamaterials
KR101963260B1 (ko) 2012-12-21 2019-03-28 삼성전기주식회사 적층형 페라이트 시트, 이를 이용한 안테나 장치 및 그 제조 방법
CN106573848B (zh) * 2014-07-31 2020-08-28 罗杰斯公司 用于超高频天线的Co2Z型铁氧体复合材料
US20160099498A1 (en) 2014-10-02 2016-04-07 Rogers Corporation Magneto-dielectric substrate, circuit material, and assembly having the same
US9596755B2 (en) 2014-10-15 2017-03-14 Rogers Corporation Magneto-dielectric substrate, circuit material, and assembly having the same
GB2550737B (en) 2015-01-30 2021-11-24 Rogers Corp Mo-Doped Co2Z-Type Ferrite Composite Material For Use in Ultra-High Frequency Antennas
DE112016001291B4 (de) 2015-03-19 2023-06-15 Rogers Corporation Magnetodielektrisches substrat sowie dessen herstellung, schaltungsmaterial sowie dessen herstellung und eine anordnung mit demschaltungsmaterial sowie schaltung und herstellung der schaltung, antenne und hf-bauelement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1911857A (zh) * 2006-09-05 2007-02-14 电子科技大学 一种低温烧结铁氧体材料用预烧粉料的制备方法
CN101913850A (zh) * 2010-07-06 2010-12-15 电子科技大学 一种高磁导率低烧z型六角铁氧体材料的制备方法
CN102408202A (zh) * 2011-08-17 2012-04-11 电子科技大学 一种微带天线复合基板材料及其制备方法
CN103304186A (zh) * 2013-07-03 2013-09-18 电子科技大学 一种铁氧体基复合磁介天线基板材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
郭世海等: "Ir4+掺杂Co2Z平面六角软磁铁氧体的磁性能", 《功能材料》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112166003A (zh) * 2018-04-10 2021-01-01 通用电气公司 热处理增材制造的铁磁部件的方法
CN109911950A (zh) * 2019-01-31 2019-06-21 南京邮电大学 一种掺铱的钌酸锶掺杂材料、制备方法及应用
TWI833031B (zh) * 2019-08-05 2024-02-21 美商羅傑斯公司 摻雜釕的z型六方晶系鐵氧體、包含彼之複合物與製品、以及彼之製備方法

Also Published As

Publication number Publication date
US20170213628A1 (en) 2017-07-27
WO2016064459A2 (en) 2016-04-28
CN106573848B (zh) 2020-08-28
WO2016064459A3 (en) 2016-07-21
KR20170040282A (ko) 2017-04-12
KR102249311B1 (ko) 2021-05-06
JP2017528403A (ja) 2017-09-28
EP3180294B1 (en) 2021-04-28
EP3180294A2 (en) 2017-06-21
JP6637959B2 (ja) 2020-01-29
EP3180294A4 (en) 2017-12-20
US10468169B2 (en) 2019-11-05

Similar Documents

Publication Publication Date Title
CN106573848A (zh) 用于超高频天线的Co2Z型铁氧体复合材料
JP6722684B2 (ja) 極超短波用ＭＯドープＣｏ２Ｚ型フェライト複合材料
JP5853381B2 (ja) アンテナ用磁性材料、並びに、アンテナ及び無線通信機器
CN102076629B (zh) 强化的六方晶系铁氧体材料及其制备方法以及用途
JP7223020B2 (ja) テクスチャード平面ｍ型六方晶フェライトおよびその製造方法
CN105541315B (zh) 具有增强谐振频率改进的z型六方铁氧体材料
Gan et al. Low loss, enhanced magneto-dielectric properties of Bi2O3 doped Mg-Cd ferrites for high frequency antennas
CN105418059A (zh) 电波吸收体用的铁氧体组合物以及电波吸收体
WO2001084566A1 (fr) Poudre de ferrite magnetique, agglomere de ferrite magnetique, structure de ferrite en couches, et procede de production de structure de ferrite en couches
CN105693235B (zh) 高介微波介质陶瓷材料及其制备方法
CN105418061A (zh) 电波吸收体用的铁氧体组合物以及电波吸收体
US11705637B2 (en) Magnetodielectric metamaterials and articles including magnetodielectric metamaterials
JP5106350B2 (ja) 磁性体と誘電体との複合焼結体およびそれを用いたｌｃ複合電子部品
dos Santos Amarante et al. Sintering behavior and electromagnetic properties of a Ni–Co ferrite/NiO biphasic ceramic
KR101282194B1 (ko) Ｙ형 페라이트 및 이로 제조된 페라이트 성형체
RU2651343C1 (ru) Способ получения поглощающего материала на основе замещенного гексаферрита бария
JP2000331816A (ja) 六方晶系ｚ型バリウムフェライトとその製造方法
JP2007045690A (ja) 誘電体磁器組成物
JP2015030630A (ja) Ｚ型六方晶フェライト
Vinaykumar et al. Electromagnetic properties of La-Co substituted Zn 2 Y type hexagonal ferrite for microwave device applications
JP2004123404A (ja) 高周波帯用スピネル型フェライト焼結体、スピネル型フェライト粒子粉末及び該スピネル型フェライト粒子粉末を用いたグリーンシート
Vinaykumar et al. CuO-modified SrCo1. 3Ti1. 3Fe9. 4O19 ferrite for L-band antenna application
CN115246736A (zh) 用于vuhf天线应用的镍锌铜铁氧体
JP2008207988A (ja) フェライト粉末とフェライト質焼結体およびこれらの製造方法、並びにフェライトコア
KR20150031679A (ko) 전자 부품 제조용 그린시트 및 그 제조방법

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20171102

Address after: American Connecticut

Applicant after: Rogers Corp.

Address before: Massachusetts, USA

Applicant before: Northeastern University

GR01 Patent grant
GR01 Patent grant