CN112028623A - 杂原子改性钛酸盐热敏电阻材料的制备方法 - Google Patents

杂原子改性钛酸盐热敏电阻材料的制备方法 Download PDF

Info

Publication number
CN112028623A
CN112028623A CN202010971980.5A CN202010971980A CN112028623A CN 112028623 A CN112028623 A CN 112028623A CN 202010971980 A CN202010971980 A CN 202010971980A CN 112028623 A CN112028623 A CN 112028623A
Authority
CN
China
Prior art keywords
temperature
tio
heteroatom
titanate
thermistor material
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
CN202010971980.5A
Other languages
English (en)
Inventor
季甲
侯银玲
周帆
李远勋
胡安苹
余熙北
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.)
Kaili University
Original Assignee
Kaili 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 Kaili University filed Critical Kaili University
Priority to CN202010971980.5A priority Critical patent/CN112028623A/zh
Publication of CN112028623A publication Critical patent/CN112028623A/zh
Pending legal-status Critical Current

Links

Images

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
    • C04B35/46—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 titanium oxides or titanates
    • C04B35/462—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 titanium oxides or titanates based on titanates
    • C04B35/465—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
    • C04B35/4682—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
    • 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
    • C04B35/63—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
    • C04B35/64—Burning or sintering processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
    • H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
    • H01C7/025—Perovskites, e.g. titanates
    • 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
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/3213—Strontium 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
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C04B2235/3234—Titanates, not containing zirconia
    • C04B2235/3236—Alkaline earth titanates
    • 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
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/6565—Cooling rate
    • 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

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)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

本发明公开了一种杂原子改性钛酸盐热敏电阻材料的制备方法。本发明调整结炉升降温速率、最高温度、保温时间；降低了800℃以前用的升温速率，有助于在造粒时加入的粘合剂完全排出，防止未排出的粘合剂由于缺氧碳化在瓷体内，造成耐压降低；提升了800℃之后的升温速率，降低了烧结的最高温度，防止升温过慢造成晶粒异常生长；缩短保温时间可防止瓷体在高温下变形，晶粒异常生长；降低降温速率，有助于产品在降温时改善晶粒结构、使其均匀，提高材料阻温特性，提高材料B值常数，增强耐电压Vb。

Description

杂原子改性钛酸盐热敏电阻材料的制备方法
技术领域
本发明涉及材料技术领域，尤其是一种杂原子改性钛酸盐热敏电阻材料的制备方法。
背景技术
现有陶瓷热敏电阻PTC元件再制作时，一般都是直接进料BaTiO3 材料再加入CaCO3,SrCO3以及施主原材料及受主原材料经过球磨→混合→造粒制备而出，或者进料BaCO3、SrCO3、CaCO3、施主原材料及受主原材料一起球磨→混合→预烧→二次球磨→造粒制备而出，前者工艺制备出陶瓷热敏电阻PTC元件晶粒结构不均匀、材料B值常数低、耐电压Vb低；后者制备陶瓷热敏电阻PTC元件工艺复杂，生产周期较长，不能及时应对订单。
于是，有鉴于此，针对现有的工艺流程，提供一种杂原子改性钛酸盐热敏电阻材料的制备工艺，以期达到更具有更加经济实用价值性的目的。
发明内容
本发明的目的在于，提供一种杂原子改性钛酸盐热敏电阻材料的制备方法，它能解决晶粒结构不均匀、材料B值常数低、耐电压Vb 低、生产工艺复杂、生产周期长等不利因素等问题。
本发明是这样实现的：杂原子改性钛酸盐热敏电阻材料的制备方法，包括如下步骤：
1)将钛酸盐体系中加入微量元素与掺杂过渡元素进行球磨、混合，并加入PVA胶进行造粒；
2)将经过球磨后的物料进行烧结，烧结炉升温在800℃以前的降温速率为200℃/小时，到达800℃后按照升温速率为300℃/小时，将温度升高至1320-1330℃，然后保温1小时，再按照200℃/小时的降温速率进行降温，直至室温。
所述的钛酸盐体系为BaTiO3、CaTiO3及SrTiO3质量比 70-80∶10-20∶5-15。
所述的微量元素的载体是SiO2，掺杂过渡元素的载体是TiO2，其中，每1mol钛酸盐体系中加入0.005mol微量元素的载体和0.03mol 掺杂过渡元素的载体。
PVA胶的加入量为材料净重量的10-15％，造粒的粒度大小为150 目
所述的BaTiO3、CaTiO3及SrTiO3分别是采用BaCO3与TiO2、CaCO3与TiO2、SrCO3与TiO2反应获得，参与反应的BaCO3与TiO2、CaCO3与 TiO2、SrCO3与TiO2的摩尔比均是1∶1.01-1.03。本发明中，在生成钛酸盐的体系中，使TiO2过量，最终是以Ti的形式存在于晶界中，TiO2过量可以改善晶粒结构，结果是可以增加耐压。
如果需要不同参数(如居里温度)的产品，可以调整SrTiO3的量改变居里温度，增加SrTiO3的量，减少BaTiO3的量，可以降低居里温度，反之，增加居里温度。
由于采用了上述技术方案，与现有技术相比，本发明调整结炉升降温速率、最高温度、保温时间；降低了800℃以前用的升温速率，有助于在造粒时加入的粘合剂完全排出，防止未排出的粘合剂由于缺氧碳化在瓷体内，造成耐压降低；提升了800℃之后的升温速率，降低了烧结的最高温度，防止升温过慢造成晶粒异常生长；缩短保温时间可防止瓷体在高温下变形，晶粒异常生长；降低降温速率，有助于产品在降温时改善晶粒结构、使其均匀，提高材料阻温特性，提高材料B值常数，增强耐电压Vb。
附图说明
图1为本发明的示例的性能对比。
具体实施方式
本发明的实施例：杂原子改性钛酸盐热敏电阻材料的制备方法，本实施例要制备的材料为一居里温度(开关温度)100℃，产品尺寸D＝12mm*T＝2.5mm，阻值80Ω，耐压Vb大于800V的陶瓷热敏电阻(PTC) 材料，包括如下步骤：
1)按摩尔比1：1.02分别配制BaCO3及TiO2、CaCO3及TiO2、SrCO3及TiO2，经过预烧后生成BaTiO3、CaTiO3、SrTiO3备用；
2)将BaTiO3、CaTiO3及SrTiO3按照75∶15∶10的比例配置成钛酸盐体系，每1mol钛酸盐体系中加入0.005mol SiO2和0.03mol TiO2。后进行球磨、混合，并加入13％的PVA胶进行造粒；
2)将经过球磨后的物料进行烧结，烧结炉升温在800℃以前的降温速率为200℃/小时，到达800℃后按照升温速率为300℃/小时，将温度升高至1320-1330℃，然后保温1小时，再按照200℃/小时的降温速率进行降温，直至室温。
将获得的产品进行检测
本试验以加入微量元素提高耐压为例：
原配比 BaxSr0.08Ca0.12Ti1.01Y0.002
现配比 BaxSr0.08Ca0.12Ti1.01Y0.002Si0.005
Figure BDA0002684417000000031
R25(常温电阻值)及Vb(破坏电压)与原配比对比Vb提升22.1％。

Claims (5)

1.一种杂原子改性钛酸盐热敏电阻材料的制备方法，其特征在于，包括如下步骤：
1)将钛酸盐体系中加入微量元素与掺杂过渡元素，进行球磨、混合，并加入PVA胶进行造粒；
2)将经过球磨后的物料进行烧结，烧结炉升温在800℃以前的降温速率为200℃/小时，到达800℃后按照升温速率为300℃/小时，将温度升高至1320-1330℃，然后保温1小时，再按照200℃/小时的降温速率进行降温，直至室温。
2.根据权利要求1所述的杂原子改性钛酸盐热敏电阻材料的制备方法，其特征在于：所述的钛酸盐体系为BaTiO3、CaTiO3及SrTiO3质量比70-80∶10-20∶5-15。
3.根据权利要求1所述的杂原子改性钛酸盐热敏电阻材料的制备方法，其特征在于：所述的微量元素的载体是SiO2，掺杂过渡元素的载体是TiO2，其中，每1mol钛酸盐体系中加入0.005mol微量元素的载体和0.03mol掺杂过渡元素的载体。
4.根据权利要求1所述的杂原子改性钛酸盐热敏电阻材料的制备方法，其特征在于：PVA胶的加入量为材料净重量的10-15％，造粒的粒度大小为150目。
5.根据权利要求1或2所述的杂原子改性钛酸盐热敏电阻材料的制备方法，其特征在于：所述的BaTiO3、CaTiO3及SrTiO3分别是采用BaCO3与TiO2、CaCO3与TiO2、SrCO3与TiO2反应获得，参与反应的BaCO3与TiO2、CaCO3与TiO2、SrCO3与TiO2的摩尔比均是1∶1.01-1.03。
CN202010971980.5A 2020-09-16 2020-09-16 杂原子改性钛酸盐热敏电阻材料的制备方法 Pending CN112028623A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010971980.5A CN112028623A (zh) 2020-09-16 2020-09-16 杂原子改性钛酸盐热敏电阻材料的制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010971980.5A CN112028623A (zh) 2020-09-16 2020-09-16 杂原子改性钛酸盐热敏电阻材料的制备方法

Publications (1)

Publication Number Publication Date
CN112028623A true CN112028623A (zh) 2020-12-04

Family

ID=73590344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010971980.5A Pending CN112028623A (zh) 2020-09-16 2020-09-16 杂原子改性钛酸盐热敏电阻材料的制备方法

Country Status (1)

Country Link
CN (1) CN112028623A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112608146A (zh) * 2020-12-31 2021-04-06 马鞍山巨华电子科技有限公司 一种具有耐高压性能的新型环保ptc热敏电阻

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1137679A (zh) * 1995-06-02 1996-12-11 上海大地通信电子有限公司 正温度系数陶瓷热敏电阻的生产工艺
CN103964839A (zh) * 2013-01-30 2014-08-06 比亚迪股份有限公司 一种正温度系数热敏电阻材料及其制备方法
CN104311004A (zh) * 2014-10-20 2015-01-28 中国科学院上海硅酸盐研究所 Ptc陶瓷材料及提高ptc陶瓷材料居里点以下电阻温度稳定性的方法
CN107935587A (zh) * 2017-11-18 2018-04-20 四川启兴电子有限公司 一种无铅ptc热敏电阻器件的制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1137679A (zh) * 1995-06-02 1996-12-11 上海大地通信电子有限公司 正温度系数陶瓷热敏电阻的生产工艺
CN103964839A (zh) * 2013-01-30 2014-08-06 比亚迪股份有限公司 一种正温度系数热敏电阻材料及其制备方法
CN104311004A (zh) * 2014-10-20 2015-01-28 中国科学院上海硅酸盐研究所 Ptc陶瓷材料及提高ptc陶瓷材料居里点以下电阻温度稳定性的方法
CN107935587A (zh) * 2017-11-18 2018-04-20 四川启兴电子有限公司 一种无铅ptc热敏电阻器件的制备方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
崔璀: "BaTiO3系PTC热敏电阻器性能优化", 《中国硕士学位论文全文数据库工程科技I辑》 *
郑权: "PTC配方与工艺研究", 《中国硕士学位论文全文数据库工程科技I辑》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112608146A (zh) * 2020-12-31 2021-04-06 马鞍山巨华电子科技有限公司 一种具有耐高压性能的新型环保ptc热敏电阻

Similar Documents

Publication Publication Date Title
US5686367A (en) Semiconducting ceramic composition having positive temperature coefficient of resistance and production process thereof
CN107056279B (zh) 单施主掺杂正温度系数热敏陶瓷及其制备方法
KR101361358B1 (ko) 반도체 자기 조성물과 그 제조 방법
JPWO2008053813A1 (ja) 半導体磁器組成物とその製造方法
CN1137679A (zh) 正温度系数陶瓷热敏电阻的生产工艺
JP2733667B2 (ja) 半導体磁器組成物
JPWO2008050876A1 (ja) 半導体磁器組成物とその製造方法
CN112028623A (zh) 杂原子改性钛酸盐热敏电阻材料的制备方法
CN115448716A (zh) 一种钛酸钡基储能陶瓷材料及其制备方法
CN102199036A (zh) 一种击穿强度高的储能陶瓷的制备方法
CN101894641B (zh) 一种提高热敏电阻器生产效率的方法
EP2256100A1 (en) Process for producing semiconductor porcelain composition/electrode assembly
CN112279638B (zh) 一种具有远红外性能的无铅ptc热敏电阻陶瓷及其制备方法
CN101395100B (zh) 半导体陶瓷组合物及其制备方法
CN109206135B (zh) 一种具有高温度系数的热敏陶瓷材料及其制备方法
CN103922736A (zh) 铌酸钾基v型ptc材料及其制备方法
WO2009116452A1 (ja) 半導体磁器組成物の製造方法及び半導体磁器組成物を用いたヒータ
CN110467455B (zh) 电动汽车用正温度系数热敏电阻的制备方法
US3316184A (en) Barium titanate ceramic composition
CN106542821A (zh) 一种Bi2O3‑B2O3‑ZnO玻璃添加Ba0.4Sr0.6TiO3基储能陶瓷及其制备方法
JPH01143202A (ja) 中高温用ｐｔｃサーミスタ
JPH10154604A (ja) 正特性サーミスタの製造方法
KR100283450B1 (ko) 프리트로 함침된 고성능 스트론튬 티타네이트 가변저항소자 제조방법
JP3331716B2 (ja) 正特性半導体素子の製造方法
CN104761254A (zh) 一种高性能高温ptc热敏材料分相制备方法

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