CN107382314A - 一种钡基复合钙钛矿结构的微波介质陶瓷 - Google Patents

一种钡基复合钙钛矿结构的微波介质陶瓷 Download PDF

Info

Publication number
CN107382314A
CN107382314A CN201710516242.XA CN201710516242A CN107382314A CN 107382314 A CN107382314 A CN 107382314A CN 201710516242 A CN201710516242 A CN 201710516242A CN 107382314 A CN107382314 A CN 107382314A
Authority
CN
China
Prior art keywords
burning
microwave
perovskite structure
medium ceramics
base complex
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.)
Pending
Application number
CN201710516242.XA
Other languages
English (en)
Inventor
李玲霞
张博文
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.)
Tianjin University
Original Assignee
Tianjin University
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 Tianjin University filed Critical Tianjin University
Priority to CN201710516242.XA priority Critical patent/CN107382314A/zh
Publication of CN107382314A publication Critical patent/CN107382314A/zh
Pending legal-status Critical Current

Links

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
    • C04B35/495—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 vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
    • 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
    • C04B35/626—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
    • 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
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
    • 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
    • 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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3256—Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
    • 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
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C04B2235/662—Annealing after sintering
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

本发明公开了一种钡基复合钙钛矿结构微波介质陶瓷Ba3Zn(Nb2‑xMox)O9+x/2(x﹦0.006～0.009)，材料介质体系组成简单，采用非化学计量比，内部含有微量的晶格缺陷，有助于烧结过程中的元素扩散与重排；煅烧过程采用煅烧+球磨+煅烧的预烧工艺，使得物相的合成更加完全，没有杂相；烧结温度为1400‑1450℃，烧结与退火过程采用同种组分埋烧并加盖烧，既防止了元素的挥发，又可避免不同组分埋烧带来的杂质元素的引入，保证了烧结过程体系化学组分的一致；采用后退火工艺进一步改善了体系内的元素有序分布状况，提高了体系的微波介电性能。本发明能够满足新兴的5G通讯网络28GHz的Ka波段通信需求，介电常数为36～39，品质因数(Qf)为90,000～110，000GHz，谐振频率温度系数为‑22～24ppm/℃。

Description

一种钡基复合钙钛矿结构的微波介质陶瓷
技术领域
本发明属于一种以成分为特征的介质材料组合物，特别涉及一种Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)中介、高Q、B位有序的微波介质陶瓷及制备方法。
背景技术
近年来微波通讯技术迅猛发展，微波介质材料得到广泛的研究与应用。微波介质陶瓷是具有质量轻、成本低、介电常数高、损耗低、谐振频率温度系数小等特点，在制造介质谐振器、介质滤波器、介质振荡器、介质谐振天线、双工器、电容器、介质基板等微波电子元器件时得到大量的应用。现代通信技术不断发展，传统的2G～4G通信网络难以满足越来越高的信息传输速度的要求。最近，美国、日本、中国等国家纷纷开展5G通讯网络的研究与测试。与传统的2G～4G通信网络采用<2.5GHz通信频段不同，新兴的5G通讯网络将采用28GHz的Ka波段作为通信波段。一般而言微波介质陶瓷的Qf值为常数(其中Q＝1/tanδ，f为测试频率)，随着应用频率的提高，其Q值将反比例下降。因此考虑到5G的28GHz的通信频率，需要材料的Qf≥90，000GHz，然而目前的微波介质陶瓷体系大都很难满足这一要求。
本发明针对目前国内外急需高Qf微波介质材料的现象，采用传统固相法制备粉体，采用同种组分埋烧、盖烧，并结合退火工艺，制备出了中介、高Q有序微波介质陶瓷Ba3Zn(Nb2-xMox)O9+x/2，能够满足新兴的5G通讯网络28GHz的Ka波段通信需求。最终获得的B位有序Ba3Zn(Nb2-xMox)O9+x/2介质陶瓷具有优异的微波介电性能，介电常数为36～39，品质因数(Qf)为90,000～110，000GHz，谐振频率温度系数为-22～24ppm/℃。
发明内容
本发明的目的，是为满足新兴的5G通讯网络28GHz的Ka波段通信需求，提供一种中介、高Q、B位有序的微波介质陶瓷材料Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)。
本发明的材料介质体系组成简单，采用非化学计量比，内部含有微量的晶格缺陷，有助于烧结过程中的元素扩散与重排；煅烧过程采用煅烧+球磨+煅烧的预烧工艺，使得物相的合成更加完全，没有杂相；烧结与退火过程采用同种组分埋烧加盖烧，既防止了元素的挥发，又可避免不同组分埋烧带来的杂质元素的引入，保证了烧结过程体系化学组分的一致；采用后退火工艺进一步改善体系内的元素有序分布状况，提高体系的微波介电性能。
本发明采用分析纯原料，具体实施步骤如下：
一种钡基复合钙钛矿结构的微波介质陶瓷，其化学式为Ba3Zn(Nb2-xMox)O9+x/2，其中x﹦0.006～0.009；
该钡基复合钙钛矿结构微波介质陶瓷的制备方法，具有如下步骤：
(1)将BaCO3、ZnO、Nb2O5、MoO3按质摩尔百分比3:1:2-x:x配料，与无水乙醇混合球磨8h后烘干并于1200℃预烧4h，制得Ba3Zn(Nb2-xMox)O9+x/2固体颗粒；
(2)将步骤(1)预烧所得Ba3Zn(Nb2-xMox)O9+x/2固体颗粒在无水乙醇中进行二次球磨，球磨时间8h，烘干后，过40目筛得到原料粉末；
(3)将步骤(2)所得Ba3Zn(Nb2-xMox)O9+x/2原料粉末于1200℃再次煅烧4h；
(4)将步骤(3)煅烧后所得Ba3Zn(Nb2-xMox)O9+x/2中外加质量分数为10％的PVA水溶液于无水乙醇中球磨12h；
(5)将步骤(4)球磨后所得粉料烘干，然后过1000孔/cm3分样筛，在200MPa压强下压制成生坯；
(6)将步骤(5)所得生坯使用相同组分埋烧并加盖烧的方式烧结，经3～4h升温至600℃排PVA，经过3h～4h升至1400-1450℃，保温6h，控制降温速率2℃/min降至1100℃，然后随炉冷却至室温；
(7)将步骤(6)所得制品进行后退火，退火过程仍然使用相同组分埋烧并加盖烧的方式，经4～5h升温至1300℃，保温10h，控制降温速率2℃/min降至1100℃，然后随炉冷却至室温，制成钡基复合钙钛矿结构微波介质陶瓷。
所述步骤(3)的PVA水溶液的质量浓度为5wt％。
所述步骤(6)的烧结温度为1435℃。
本发明提供的中介、高Q、B位有序的微波介质陶瓷Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)，成瓷致密度高，微波介电性能优异，能够满足新兴的5G通讯网络28GHz的Ka波段通信需求。介电常数为36～39，品质因数(Qf)为90,000～110，000GHz，谐振频率温度系数为-22～24ppm/℃。本发明配方简单，过程环保，微波传输新能优异，适用于5G通讯网络高速通信的发展要求。
具体实施方式
本发明具体实施方式如下：
(1)本发明采用分析纯原料，将BaCO3、ZnO、Nb2O5、MoO3按质摩尔百分比3:1:2-x:x配料，与无水乙醇混合球磨8h后烘干并于1200℃预烧4h，制得Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)固体颗粒；
将步骤(1)预烧所得Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)固体颗粒在无水乙醇中进行二次球磨，球磨时间8h，烘干后，过40目筛得到粉末；
将步骤(2)所得Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)于1200℃再次煅烧4h；
将步骤(3)所得Ba3Zn(Nb2-xMox)O9+x/2(x﹦0.006～0.009)加入质量分数为10％的PVA水溶液(PVA水溶液浓度5wt％)于无水乙醇中球磨12h；
将步骤(4)所得粉料烘干，然后过1000孔/cm3分样筛，在200MPa压强下压制成生坯；
将步骤(5)所得生坯使用相同组分埋烧并加盖烧的方式烧结，经3～4h升温至600℃排PVA，经过3h～4h升至1400-1450℃，保温6h，控制降温速率2℃/min降至1100℃，然后随炉冷却至室温；
将步骤(6)所得制品进行后退火，退火过程仍然使用相同组分埋烧加盖烧的方式。经4～5h升温至1300℃，保温10h，控制降温速率2℃/min降至1100℃，然后随炉冷却至室温；
最后通过网络分析仪及相关测试夹具测试制品的微波介电性能。
具体实施例1～8的主要工艺指标及其微波介电性能的测试结果详见表1。
表1中谐振频率温度系数τf值的测定温区范围是25℃～85℃。
表1

Claims (3)

1.一种钡基复合钙钛矿结构的微波介质陶瓷，其化学式为Ba3Zn(Nb2-xMox)O9+x/2，其中x﹦0.006～0.009。
该钡基复合钙钛矿结构微波介质陶瓷的制备方法，具有如下步骤：
(1)将BaCO3、ZnO、Nb2O5、MoO3按质摩尔百分比3:1:2-x:x配料，与无水乙醇混合球磨8h后烘干并于1200℃预烧4h，制得Ba3Zn(Nb2-xMox)O9+x/2固体颗粒；
(2)将步骤(1)预烧所得Ba3Zn(Nb2-xMox)O9+x/2固体颗粒在无水乙醇中进行二次球磨，球磨时间8h，烘干后，过40目筛得到原料粉末；
(3)将步骤(2)所得Ba3Zn(Nb2-xMox)O9+x/2原料粉末于1200℃再次煅烧4h；
(4)将步骤(3)煅烧后所得Ba3Zn(Nb2-xMox)O9+x/2中外加质量分数为10％的PVA水溶液于无水乙醇中球磨12h；
(5)将步骤(4)球磨后所得粉料烘干，然后过1000孔/cm3分样筛，在200MPa压强下压制成生坯；
(6)将步骤(5)所得生坯使用相同组分埋烧并加盖烧的方式烧结，经3～4h升温至600℃排PVA，经过3h～4h升至1400-1450℃，保温6h，控制降温速率2℃/min降至1100℃，然后随炉冷却至室温；
(7)将步骤(6)所得制品进行后退火，退火过程仍然使用相同组分埋烧并加盖烧的方式，经4～5h升温至1300℃，保温10h，控制降温速率2℃/min降至1100℃，然后随炉冷却至室温，制成钡基复合钙钛矿结构微波介质陶瓷。
2.根据权利要求1所述的一种钡基复合钙钛矿结构微波介质陶瓷，其特征在于，所述步骤(3)的PVA水溶液的质量浓度为5wt％。
3.根据权利要求1所述的一种钡基复合钙钛矿结构微波介质陶瓷，其特征在于，所述步骤(6)的烧结温度为1435℃。
CN201710516242.XA 2017-06-29 2017-06-29 一种钡基复合钙钛矿结构的微波介质陶瓷 Pending CN107382314A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710516242.XA CN107382314A (zh) 2017-06-29 2017-06-29 一种钡基复合钙钛矿结构的微波介质陶瓷

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710516242.XA CN107382314A (zh) 2017-06-29 2017-06-29 一种钡基复合钙钛矿结构的微波介质陶瓷

Publications (1)

Publication Number Publication Date
CN107382314A true CN107382314A (zh) 2017-11-24

Family

ID=60334475

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710516242.XA Pending CN107382314A (zh) 2017-06-29 2017-06-29 一种钡基复合钙钛矿结构的微波介质陶瓷

Country Status (1)

Country Link
CN (1) CN107382314A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109251028A (zh) * 2018-10-26 2019-01-22 天津大学 一种低介高q锂镁铌系微波介质陶瓷及其制备方法
CN112194464A (zh) * 2020-10-28 2021-01-08 中科传感技术(青岛)研究院 一种用于含铅压电陶瓷制品的烧结方式
CN115367800A (zh) * 2021-12-15 2022-11-22 上海旦芯悦灵脑智能科技有限公司 一种钙钛矿半导体纳米材料的制备方法和应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0234551A (ja) * 1988-07-22 1990-02-05 Taiyo Yuden Co Ltd 誘電体磁器組成物
CN1562868A (zh) * 2004-03-16 2005-01-12 天津大学 微波陶瓷介质及其制造方法
CN101423394A (zh) * 2008-12-09 2009-05-06 哈尔滨工业大学深圳研究生院 一种钡锌铌系微波介质陶瓷及其制备方法
CN103553603A (zh) * 2013-10-10 2014-02-05 西安广芯电子科技有限公司 一种中介电常数的两相复合微波介质陶瓷及其制备方法
CN103864425A (zh) * 2012-12-14 2014-06-18 深圳市大富科技股份有限公司 一种微波介质陶瓷材料的制备方法
CN104446466A (zh) * 2014-10-31 2015-03-25 南京智元微波科技有限公司 高品质微波陶瓷材料及其介质谐振器的制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0234551A (ja) * 1988-07-22 1990-02-05 Taiyo Yuden Co Ltd 誘電体磁器組成物
CN1562868A (zh) * 2004-03-16 2005-01-12 天津大学 微波陶瓷介质及其制造方法
CN101423394A (zh) * 2008-12-09 2009-05-06 哈尔滨工业大学深圳研究生院 一种钡锌铌系微波介质陶瓷及其制备方法
CN103864425A (zh) * 2012-12-14 2014-06-18 深圳市大富科技股份有限公司 一种微波介质陶瓷材料的制备方法
CN103553603A (zh) * 2013-10-10 2014-02-05 西安广芯电子科技有限公司 一种中介电常数的两相复合微波介质陶瓷及其制备方法
CN104446466A (zh) * 2014-10-31 2015-03-25 南京智元微波科技有限公司 高品质微波陶瓷材料及其介质谐振器的制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MICHAEL W. LUFASO ET AL.: ""Crystal Chemistry and Microwave Dielectric Properties of Ba3MNb2-xSbxO9 (M=Mg, Ni, Zn)"", 《CHEM. MATER.》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109251028A (zh) * 2018-10-26 2019-01-22 天津大学 一种低介高q锂镁铌系微波介质陶瓷及其制备方法
CN112194464A (zh) * 2020-10-28 2021-01-08 中科传感技术(青岛)研究院 一种用于含铅压电陶瓷制品的烧结方式
CN115367800A (zh) * 2021-12-15 2022-11-22 上海旦芯悦灵脑智能科技有限公司 一种钙钛矿半导体纳米材料的制备方法和应用
CN115367800B (zh) * 2021-12-15 2023-11-14 上海旦芯悦灵脑智能科技有限公司 一种钙钛矿半导体纳米材料的制备方法和应用

Similar Documents

Publication Publication Date Title
CN106587987B (zh) C0g微波介质材料及制备方法及陶瓷材料的制备方法
CN111995383B (zh) Mg2-xMxSiO4-CaTiO3复合微波介质陶瓷及其制备方法
CN103896579B (zh) 一种锂基低温烧结微波介质陶瓷材料及其制备方法
CN105294104B (zh) 低损耗介电可调中介微波介质陶瓷材料及其制备方法
CN108821768B (zh) 一种微波介质陶瓷材料及其制备方法
CN105084892B (zh) 高介单层微型陶瓷电容器基片材料及其制备方法
CN107382314A (zh) 一种钡基复合钙钛矿结构的微波介质陶瓷
CN105272213B (zh) 高介低损微波介质陶瓷材料及其制备方法
CN107188557A (zh) 一种微波介质陶瓷材料及其制备方法
CN103833351B (zh) 微波介质陶瓷及其制备方法
CN105693235B (zh) 高介微波介质陶瓷材料及其制备方法
CN111004030A (zh) 一种MgTiO3基微波介质陶瓷及其制备方法
CN106007707B (zh) Mg-Nb掺杂钛酸铋微波介质陶瓷及其制备方法
CN107586131A (zh) 一种近零谐振频率温度系数微波介质陶瓷及其制备方法
CN107500756A (zh) 一种高介电常数低损耗SrTiO3基介质材料及其制备方法
CN104230328B (zh) 一种中温烧结低介微波介质陶瓷材料及其制备方法
CN102850057A (zh) 以氧化铜为添加剂降低铌酸钕微波介质陶瓷烧结温度的方法
CN102633500B (zh) 一种介电可调的低温共烧陶瓷材料及其制备方法
CN108409325A (zh) 一种超低温烧结的高q值微波介质陶瓷材料制备工艺及产品
CN107573069A (zh) 一种中温烧结的中介电常数高q值微波介质材料
CN106866143A (zh) 微波复相陶瓷AWO4‑TiO2及其制备方法
CN113072373A (zh) 一种适用于5g毫米波通讯应用的温度稳定型低介陶瓷材料及其制备方法
CN106966722A (zh) 一种低温烧结高品质因数铌酸镧系微波介质陶瓷
CN102531568A (zh) 可低温烧结微波介电陶瓷LiBa4Bi3O11及其制备方法
CN107266074B (zh) 一种微波陶瓷材料及其制备方法

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171124