CN107473725A - 一种嵌套基体的制备方法 - Google Patents
一种嵌套基体的制备方法 Download PDFInfo
- Publication number
- CN107473725A CN107473725A CN201710695627.7A CN201710695627A CN107473725A CN 107473725 A CN107473725 A CN 107473725A CN 201710695627 A CN201710695627 A CN 201710695627A CN 107473725 A CN107473725 A CN 107473725A
- Authority
- CN
- China
- Prior art keywords
- layer
- nested
- green compact
- nested matrix
- internal layer
- 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
Links
- 239000011159 matrix material Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 80
- 238000005245 sintering Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 32
- 239000003292 glue Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 28
- 239000000919 ceramic Substances 0.000 claims description 18
- 230000005308 ferrimagnetism Effects 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 11
- 230000008602 contraction Effects 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 15
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229920000297 Rayon Polymers 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/204—Di-electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/02—Ceramics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2318/00—Mineral based
- B32B2318/04—Stone
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
本发明公开了一种嵌套基体的制备方法,属于微波技术领域,包括以下步骤:将第一层材料成型得到内层生坯;将内层生坯进行烧结,得到内层成品;将第二层材料成型得到第二层生坯;内层成品置于第二层生坯内部中心,使两者几何中心保持一致,然后进行烧结,得到不同材料组成的双层嵌套基体;还可以继续进行第三层、第N层嵌套烧结,得到多层嵌套基体;本发明嵌套基体可用于解决超宽带微波铁氧体器件所需带宽问题以及微波铁氧体器件的小型化问题等,避免了材料内部加工、粘胶等工艺,可以极大地提高嵌套基体的生产效率、产品一致性及温度稳定性,有利于微波器件的低成本、批量化生产,以及提升器件稳定性和可靠性。
Description
技术领域
本发明涉及微波技术领域,尤其涉及一种嵌套基体的制备方法。
背景技术
目前,基于单一微波铁氧体基片的器件设计无法进一步拓展微波器件的带宽,而采用不同材料复合的嵌套基体可以有效解决微波器件的带宽问题。但是,目前复合的嵌套基体一般是采用物理粘胶生产得到,这种方式存在以下问题:一是加工过程复杂,生产效率低,二是得到的嵌套基体一致性差、无法承受高温环境以及无法进行高温加工
另外,微波铁氧体器件的尺寸与材料的介电常数密切相关,材料介电常数越大,相应器件尺寸越小,采用铁氧体材料与高介电常数的介质陶瓷材料复合的嵌套基体,可以有效减小微波铁氧体器件的尺寸,解决器件小型化难题。
发明内容
本发明的目的是为了解决目前物理粘胶嵌套基体生产率低、一致性差、加工过程复杂、无法承受高温环境以及无法进行高温加工等问题,本发明提供了一种嵌套基体制备方法,以解决目前微波器件体积和质量较大,无法小型化和温度可靠性与一致性较差的问题。
为了实现上述目的,本发明采用的技术方案是这样的:一种嵌套基体的制备方法,包括以下步骤:
(A)将第一层材料成型得到内层生坯;
(B)将步骤(A)得到的内层生坯进行烧结,得到内层成品;
(C)将第二层材料成型得到第二层生坯;
(D)将经步骤(B)所得的内层成品置于步骤(C)得到的第二层生坯内部中心,使两者几何中心保持一致,然后进行烧结,得到不同材料组成的双层嵌套基体。
作为优选的技术方案,重复上述步骤(C)和(D),继续增加嵌套基体层数,得到多层嵌套基体。
作为优选的技术方案,步骤(A)中,所述第一层材料为介质陶瓷粉料或铁氧体磁性粉料。
作为进一步优选的技术方案,将所述介质陶瓷粉料与铁氧体磁性粉料分别进行成型,成型压力为10~250MPa,成型形状为圆形、多边形或其他不规则形状,分别得到介质陶瓷生坯和铁氧体磁性生坯。
作为更进一步优选的技术方案,步骤(B)中通过精准控制所述内层生坯的烧结收缩率及收缩过程直接得到嵌套基体内层所需形状及尺寸,或者在所述内层生坯烧结完成后对所述内层生坯进行后续加工至所需形状及尺寸
作为更进一步优选的技术方案,步骤(B)中,介质陶瓷生坯和铁氧体磁性生坯的烧结温度为800℃~1500℃。
作为优选的技术方案,步骤(C)中,第二层材料为介质陶瓷粉料或铁氧体磁性粉料。
作为优选的技术方案,步骤(D)中,在所述内层成品外部均匀涂覆或不涂覆高温无机胶或助熔剂。
作为优选的技术方案,步骤(D)中,烧结时,按照第二层材料烧结工艺对整体进行烧结,通过精准控制第二层材料的烧结收缩率及收缩历程,使第二层材料收缩后的内部尺寸与内层成品的尺寸精确匹配;同时第二层材料的外部形状及尺寸直接符合嵌套基体外部形状及尺寸要求或经过后续加工得到嵌套基体所需外部形状及尺寸;通过控制第二层材料收缩后产生的物理收缩应力将内层成品紧密嵌套于第二层材料之中
作为进一步优选的技术方案,步骤(D)中,烧结时烧结温度为700℃~1400℃。
本发明通过物理应力结合方式,将几种不同的材料紧密结合在一起形成嵌套基体。
本发明可以是铁氧体与铁氧体、铁氧体与陶瓷或陶瓷与陶瓷等不同材料组成的两层或多层嵌套基体,该嵌套基体形状可为圆形、多边形或其他不规则形状的磁性铁氧体层或介质陶瓷层构成;所述介质陶瓷层及铁氧体磁性层均可为嵌套基体内层或外层。
本发明的“内层”是指“第一层”,“外层”是指除第一层外的第二层、第三层、第N层。
与现有技术相比,本发明的优点在于:本发明所得的嵌套基体可用于解决超宽带微波铁氧体器件所需带宽问题以及微波铁氧体器件的小型化问题等,相比于现有的物理粘胶嵌套基体,本发明避免了材料内部加工、粘胶等工艺,其生产效率提高50%,生产成本降低10%,并且可以进行高温加工及耐受高温环境(可以从目前的200℃提高至1000℃),极大地提高嵌套基体的生产效率、产品一致性及温度稳定性,有利于微波器件的低成本 、批量化生产,以及提升器件稳定性和可靠性。
附图说明
图1是本发明嵌套基体制备方法工艺流程图;
图2是本发明嵌套基体典型结构示意图;
图3是本发明嵌套基体的最终平面结构图;
图2中,1、第三层;2、第二层;3、内层,1、2、3均可为介质层或铁氧体层。
具体实施方式
下面将结合实施例对本发明作进一步说明。
实施例1:
一种嵌套基体的制备方法,包括以下步骤:
(A)铁氧体磁性层、介质层等嵌套层分别成型得到内层生坯,成型压力为10~250MPa,成型形状为圆形、多边形或其他不规则形状,分别得到介质陶瓷生坯与铁氧体生坯;
(B)内层按照其最佳烧结工艺先进行烧结,烧结温度为800℃~1500℃。通过精准控制其烧结收缩率及收缩过程,使得烧结后的内层材料的外形尺寸可以直接符合嵌套基体所需的内层形状及尺寸,或是将烧结后的内层材料通过后续加工至嵌套基体所需内层形状及尺寸;
(C)将第二层材料成型得到第二层生坯;
(D)将经步骤(B)所得的内层成品外部均匀涂覆或不涂覆高温无机胶或助熔剂,然后将其置于步骤(C)得到的第二层生坯内部中心,使两者几何中心保持一致,然后按照第二层材料烧结工艺对整体进行烧结,烧结温度为700℃~1400℃,在烧结过程中,通过精准控制外层材料的烧结收缩率及收缩历程,使外层材料收缩后的内部尺寸与内层材料外部尺寸精确匹配;同时外层材料的外部形状及尺寸直接符合嵌套基体外部形状及尺寸要求或经过后续加工得到嵌套基体所需外部形状及尺寸;通过控制外层材料收缩后产生的物理收缩应力将内层材料紧密嵌套于外层材料之中,得到不同材料组成的嵌套基体,重复上述过程,则可继续增加嵌套基体层数,得到多层嵌套基体。
图2为嵌套基体的一种典型平面结构,其中1、2、3层均可为介质层或铁氧体层,在介质层一般形成传输、匹配、滤波、开关、放大及驱动等功能,铁氧体磁性材料层形成微波传输非互易功能,如微波传输环形、移相功能,为了保障铁氧体磁性层与介质陶瓷层结合紧密,嵌套基体无开裂、翘曲、脱落现象,需要精确控制外层材料的烧结收缩率与收缩应力,使其烧结后的内部形状及尺寸与内层材料外形尺寸精确匹配,并符合嵌套基体对材料形状及尺寸的要求,并且在烧结收缩过程中通过外层材料的物理收缩应力能将内层材料包裹夹紧,形成一体化的嵌套基体。
在嵌套基体的组成中,铁氧体磁性层材料一般为石榴石、尖晶石这两类常用的铁氧体材料。微波铁氧体材料的烧结温度一般在800~1500℃,介质陶瓷层材料烧结温度在700~1400℃,要实现不同结构的内层材料和外层材料的良好匹配嵌套且性能良好,需要精确计算外层材料和内层材料的烧结收缩率及烧结后尺寸,然后通过严格控制内层及外层材料的烧结收缩率,从而对材料烧结后的形状及尺寸进行控制。先将内层材料按照其最佳烧结工艺进行烧结,内层材料经过烧结后可以直接得到嵌套基体内层所需的形状及尺寸,或者对其进行后续加工得到嵌套基体内层要求的形状及尺寸,然后将内层材料外部均匀涂覆或不涂覆高温无机胶或助熔剂,并将其置于外层介质陶瓷层或铁氧体磁性层生坯中心,尽量使两者几何中心保持一致,然后按照外层材料烧结工艺对整体进行烧结,在烧结过程中,通过控制外层材料的烧结收缩率及收缩历程,精准控制外层材料烧结后的尺寸以及收缩应力,使外层材料内部形状及尺寸与内层材料外部形状及尺寸实现精确匹配,并使烧结后外层材料的外部形状及尺寸符合嵌套基体外部形状及尺寸要求,或是经过加工后使其符合相应要求,得到嵌套基体,重复上述过程,则可继续增加嵌套基体层数,得到多层嵌套基体。
实施例2:
一种嵌套基体的制备方法,包括以下步骤:
(A)铁氧体磁性层,成型压力为100MPa,分别得到圆棒状铁氧体生坯;
(B)内层铁氧体磁性层按照其最佳烧结工艺先进行烧结,烧结温度为1400℃。将烧结后的内层材料通过后续加工至嵌套基体所需内层形状及尺寸:直径15.5mm,高度20mm;
(C)将第二层介质材料成型得到第二层生坯,成型压力为200MPa,得到中心为圆孔的八边形介质陶瓷生坯。
(D)将经步骤(B)所得的内层成品置于步骤(C)得到的第二层生坯内部中心,使两者几何中心保持一致,然后按照第二层材料烧结工艺对整体进行烧结,烧结温度为1300℃,在烧结过程中,通过精准控制外层材料的烧结收缩率及收缩历程,控制其烧结收缩率为17.5%,使外层材料收缩后的内部尺寸为:直径15.5mm,高度20mm,与内层材料外部尺寸精确匹配;同时外层材料的外部形状及尺寸直接符合嵌套基体外部形状及尺寸要求;通过控制外层材料收缩后产生的物理收缩应力将内层材料紧密嵌套于外层材料之中,得到嵌套基体。
图3为该嵌套基体的最终平面结构。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种嵌套基体的制备方法,其特征在于,包括以下步骤:
(A)将第一层材料成型得到内层生坯;
(B)将步骤(A)得到的内层生坯进行烧结,得到内层成品;
(C)将第二层材料成型得到第二层生坯;
(D)将经步骤(B)所得的内层成品置于步骤(C)得到的第二层生坯内部中心,使两者几何中心保持一致,然后进行烧结,得到不同材料组成的双层嵌套基体。
2.根据权利要求1所述的一种嵌套基体的制备方法,其特征在于,重复上述步骤(C)和(D),继续增加嵌套基体层数,得到多层嵌套基体。
3.根据权利要求1所述的一种嵌套基体的制备方法,其特征在于,步骤(A)中,所述第一层材料为介质粉料或铁氧体磁性粉料。
4.根据权利要求3所述的一种嵌套基体的制备方法,其特征在于,将所述介质陶瓷粉料与铁氧体磁性粉料分别进行成型,成型压力为10~250MPa,成型形状为圆形、多边形或其他不规则形状,分别得到介质陶瓷生坯和铁氧体磁性生坯。
5.根据权利要求4所述的一种嵌套基体的制备方法,其特征在于,步骤(B)中通过精准控制所述内层生坯的烧结收缩率及收缩过程直接得到嵌套基体内层所需形状及尺寸,或者在所述内层生坯烧结完成后对所述内层生坯进行后续加工至所需形状及尺寸。
6.根据权利要求5所述的一种嵌套基体的制备方法,其特征在于,步骤(B)中,介质陶瓷生坯和铁氧体磁性生坯的烧结温度为800℃~1500℃。
7.根据权利要求1所述的一种嵌套基体的制备方法,其特征在于,步骤(C)中,第二层材料为介质陶瓷粉料或铁氧体磁性粉料。
8.根据权利要求1所述的一种嵌套基体的制备方法,其特征在于,步骤(D)中,在所述内层成品外部均匀涂覆或不涂覆高温无机胶或助熔剂。
9.根据权利要求1所述的一种嵌套基体的制备方法,其特征在于,步骤(D)中,烧结时,按照第二层材料烧结工艺对整体进行烧结,通过精准控制第二层材料的烧结收缩率及收缩历程,使第二层材料收缩后的内部尺寸与内层成品的尺寸精确匹配;同时第二层材料的外部形状及尺寸直接符合嵌套基体外部形状及尺寸要求或经过后续加工得到嵌套基体所需外部形状及尺寸;通过控制第二层材料收缩后产生的物理收缩应力将内层成品紧密嵌套于第二层材料之中。
10.根据权利要求8所述的一种嵌套基体的制备方法,其特征在于,步骤(D)中,烧结时烧结温度为700℃~1400℃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710695627.7A CN107473725B (zh) | 2017-08-15 | 2017-08-15 | 一种嵌套基体的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710695627.7A CN107473725B (zh) | 2017-08-15 | 2017-08-15 | 一种嵌套基体的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107473725A true CN107473725A (zh) | 2017-12-15 |
CN107473725B CN107473725B (zh) | 2020-09-29 |
Family
ID=60600496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710695627.7A Active CN107473725B (zh) | 2017-08-15 | 2017-08-15 | 一种嵌套基体的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107473725B (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111410528A (zh) * | 2020-05-15 | 2020-07-14 | 昆山卡德姆新材料科技有限公司 | 一种微波介电陶瓷及一种微波介电陶瓷的制作方法 |
CN112752628A (zh) * | 2018-09-27 | 2021-05-04 | 西门子股份公司 | 用于烧结多部件烧结产品的方法、电机和电动交通工具 |
CN113135747A (zh) * | 2021-04-26 | 2021-07-20 | 中国电子科技集团公司第九研究所 | 一种微波铁氧体的制备方法 |
CN115415527A (zh) * | 2022-08-16 | 2022-12-02 | 湖南金天铝业高科技股份有限公司 | 制动盘的制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104860669A (zh) * | 2015-05-11 | 2015-08-26 | 西南应用磁学研究所 | 高温烧制铁氧体-陶瓷一体化基板及制备方法 |
-
2017
- 2017-08-15 CN CN201710695627.7A patent/CN107473725B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104860669A (zh) * | 2015-05-11 | 2015-08-26 | 西南应用磁学研究所 | 高温烧制铁氧体-陶瓷一体化基板及制备方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112752628A (zh) * | 2018-09-27 | 2021-05-04 | 西门子股份公司 | 用于烧结多部件烧结产品的方法、电机和电动交通工具 |
CN112752628B (zh) * | 2018-09-27 | 2023-09-15 | 西门子股份公司 | 用于烧结多部件烧结产品的方法、电机和电动交通工具 |
CN111410528A (zh) * | 2020-05-15 | 2020-07-14 | 昆山卡德姆新材料科技有限公司 | 一种微波介电陶瓷及一种微波介电陶瓷的制作方法 |
CN113135747A (zh) * | 2021-04-26 | 2021-07-20 | 中国电子科技集团公司第九研究所 | 一种微波铁氧体的制备方法 |
CN115415527A (zh) * | 2022-08-16 | 2022-12-02 | 湖南金天铝业高科技股份有限公司 | 制动盘的制备方法 |
CN115415527B (zh) * | 2022-08-16 | 2023-12-08 | 湖南湘投轻材科技股份有限公司 | 制动盘的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN107473725B (zh) | 2020-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107473725A (zh) | 一种嵌套基体的制备方法 | |
RU2649413C9 (ru) | Катушка индуктивности и способ её изготовления | |
US6660412B2 (en) | Low loss, high frequency composite magnetic material and methods of making the same | |
JP2010511791A5 (zh) | ||
RU2009125920A (ru) | Магнитно-мягкий порошок | |
CN104860669A (zh) | 高温烧制铁氧体-陶瓷一体化基板及制备方法 | |
JP2010245505A (ja) | 金属ワイヤを内部に有するセラミック焼成体の製造方法 | |
CN110066168A (zh) | 一种应力稳定性良好的铁氧体及其制备方法 | |
WO2021197513A3 (zh) | 一种一体成型电感及其制造方法 | |
WO2023133994A1 (zh) | 一种一体成型电感器的制造方法及应用其制备的电感器 | |
CN108899152A (zh) | 一种多绝缘层铁硅基软磁粉芯及其制备方法 | |
CN113979744B (zh) | 一种镁钙钛微波介质陶瓷粉体及其制备方法和应用 | |
CN110211761A (zh) | 一种高强度高磁导率铁粉基软磁复合材料构件制备方法 | |
US20180261375A1 (en) | Magnetic core capable of preventing fast dc saturation attenuation and manufacturing method thereof | |
CN105118673A (zh) | 片式陶瓷电容器烧结方法 | |
CN102723570B (zh) | 一种陶瓷介质谐振子 | |
JPS6372803A (ja) | 鉄系焼結部品の製造方法 | |
JP6276205B2 (ja) | MnZnフェライトコアの製造方法 | |
CN109734432B (zh) | 一种车载用宽温抗应力铁氧体材料和磁芯、及其制造方法 | |
CN107578883A (zh) | 一种锥形宽频带电感及其加工方法 | |
CN107749345A (zh) | 贴片式电感磁芯的制作方法 | |
KR101850107B1 (ko) | 전자석 및 그 제조방법 | |
CN105294094A (zh) | 一种高绕线比高磁导率的磁芯材料及其制备方法 | |
CN105023743A (zh) | 复合结构铁粉芯坯体制造方法及复合结构铁粉芯制造方法 | |
CN108878127A (zh) | 一种高致密度软磁复合铁芯及其制备方法 |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |