CN111620689A - 一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法 - Google Patents

一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法 Download PDF

Info

Publication number
CN111620689A
CN111620689A CN202010511102.5A CN202010511102A CN111620689A CN 111620689 A CN111620689 A CN 111620689A CN 202010511102 A CN202010511102 A CN 202010511102A CN 111620689 A CN111620689 A CN 111620689A
Authority
CN
China
Prior art keywords
temperature
perovskite
oxide
different
hours
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
CN202010511102.5A
Other languages
English (en)
Inventor
张博
常爱民
魏亚鑫
付志龙
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.)
Xinjiang Technical Institute of Physics and Chemistry of CAS
Original Assignee
Xinjiang Technical Institute of Physics and Chemistry of CAS
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 Xinjiang Technical Institute of Physics and Chemistry of CAS filed Critical Xinjiang Technical Institute of Physics and Chemistry of CAS
Priority to CN202010511102.5A priority Critical patent/CN111620689A/zh
Publication of CN111620689A publication Critical patent/CN111620689A/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
    • 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
    • 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
    • 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
    • H01C7/04—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 negative temperature coefficient
    • H01C7/042—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 negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
    • H01C7/045—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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide 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
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • 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
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • 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
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C04B2235/662—Annealing after sintering

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inorganic Chemistry (AREA)
  • Thermistors And Varistors (AREA)

Abstract

本发明涉及一种不同A位元素的类钙钛矿型高温热敏电阻材料及其制备方法，该材料以碳酸钙、氧化铜、二氧化钛、三氧化二钇、三氧化二镧、氧化锶为原料，经混合研磨、煅烧、冷等静压成型、高温烧结、涂烧电极，即得到不同A位元素的类钙钛矿型高温热敏电阻材料，该材料常数为B 300℃/500℃=5900K‑11000K，温度75℃电阻率为6.01×105Ωcm‑3.2×109Ωcm，该不同A位元素的类钙钛矿型高温热敏电阻材料性能稳定，一致性好，在温度75℃‑600℃范围具有明显的负温度系数特性，适合制造高温热敏电阻器。

Description

一种不同A位元素的类钙钛矿型高温热敏电阻材料及其制备 方法
技术领域
本发明涉及一种不同A位元素的类钙钛矿型高温热敏电阻材料及其制备方法，该热敏电阻材料在温度75℃—600℃范围具有明显的负温度系数特性，是一种适用于制造高温热敏电阻器的新型热敏电阻材料。
背景技术
随着当代科学与信息技术的迅速发展，在电子陶瓷制造业中负温度系数(NTC)热敏电阻陶瓷在温度的检测、控制和补偿方面的应用占据着重要的地位。在不同的测温应用中，高温NTC热敏电阻需要考虑到不同的精度，功耗和成本的问题，所以需要不同的B值，不同阻值变化范围，高温NTC热敏电阻需要在现有基础上，通过掺杂或复合等手段改善已具有NTC特性的材料，并探索具有更优异性能的NTC材料。
传统的尖晶石结构热敏电阻材料在高温下相结构不稳定、热敏性能恶化，无法满足300℃以上高温应用。因此，设计合成新型高温热敏电阻陶瓷材料成为热敏电阻领域新的研究热点。近年来，一类具有巨介电常数(室温下为105)的类钙钛矿(通式ABO3)结构CaCu3Ti4O12(CCTO)材料引起研究学者的极大关注，其在移动电话、全球定位系统、电容器、谐振器、气敏传感器等领域有很大的应用前景。CCTO为体心立方结构，其晶体结构较为稳定。
本发明对氧化物固相法制备的CaCu3Ti4O12热敏电阻材料电学性能进行了初步研究，其材料常数为6000K，有望用于制造高温热敏电阻器。考虑到La2O3、Y2O3、SrO耐高温性能，且La3+、Y3+、Sr2+与Ca2+具有相近的离子半径，替换A位的Ca2+可调节热敏电阻材料电学性能，制造不同电性能参数的高温热敏电阻器。
本发明从CaCu3Ti4O12的半导体特性出发，通过La2O3、Y2O3、SrO替换设计合成了类钙钛矿型ACu3Ti4O12(A＝Ca、La2/3、Y2/3或Sr)高温75℃-600℃热敏电阻材料。
发明内容
本发明的目的在于，提供一种不同A位元素的类钙钛矿型高温热敏电阻材料及其制备方法，该材料以碳酸钙、氧化铜、二氧化钛、三氧化二钇、三氧化二镧、氧化锶为原料，经混合研磨、煅烧、冷等静压成型、高温烧结、涂烧电极，即可得到类钙钛矿型高温热敏电阻材料，材料常数为B300℃/500℃＝5900K-11000K，温度75℃电阻率为6.01×105Ωcm-3.2×109Ωcm。本发明所述的不同A位元素的类钙钛矿型高温热敏电阻材料性能稳定，一致性好，在温度75℃-600℃范围具有明显的负温度系数特性，适合制造高温热敏电阻器。
本发明所述的一种不同A位元素的类钙钛矿型高温热敏电阻材料，该热敏电阻材料以碳酸钙、氧化铜、二氧化钛、三氧化二钇、三氧化二镧、氧化锶为原料，其化学组成为ACu3Ti4O12，为体心立方的类钙钛矿结构，其中A＝Ca、La2/3、Y2/3或Sr制成材料常数为B300℃/500℃＝5900K-11000K，温度75℃电阻率为6.01×105Ωcm-3.2×109Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
所述类钙钛矿型高温热敏电阻材料的制备方法，按下列步骤进行：
a、按ACu3Ti4O12的组成，其中A＝Ca、La2/3、Y2/3或Sr，分别按碳酸钙、氧化铜和二氧化钛；或三氧化二钇、氧化铜和二氧化钛；或三氧化二镧、氧化铜和二氧化钛；或氧化锶、氧化铜和二氧化钛进行混合，将混合的原料置于玛瑙研钵中研磨5-10小时，得到粉体；
b、将步骤a中研磨好的粉体在温度700℃-1000℃煅烧4-10小时，研磨5-11小时后即得ACu3Ti4O12粉体；
c、将步骤b得到的粉体材料以10-20Kg/cm2的压力进行压块成型，时间为0.5-2分钟，将成型的块体材料进行冷等静压，在压强为300-400MPa下保压1-3分钟，然后于温度900℃-1200℃烧结4-10小时，制得高温热敏陶瓷材料；
d、将步骤c烧结的陶瓷材料正反两面涂覆银浆电极，然后于温度600℃下退火30分钟，即得到温度范围为75℃-600℃，材料常数为B300℃/500℃＝5900K-11000K，温度75℃电阻率为6.01×105Ωcm-3.2×109Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
本发明所述的一种不同A位元素的类钙钛矿型高温热敏电阻材料及其制备方法，采用固相法将钙、铜、钛、钇、镧、锶的氧化物按化学组成为ACu3Ti4O12，其中A＝Ca、La2/3、Y2/3或Sr，进行混和研磨、煅烧、混合、再研磨即得热敏电阻粉体材料，再将该粉体材料片式冷等静压成型，高温烧结后正反两面涂烧银浆电极，获得热敏电阻圆片，该圆片为不同A位元素的类钙钛矿型高温热敏电阻材料，其材料常数为B300℃/500℃＝5900K-11000，温度75℃电阻率为6.01×105Ωcm-3.2×109Ωcm。采用本发明所述方法制备的类钙钛矿型高温热敏电阻材料性能稳定，一致性好，该热敏电阻材料在温度75℃-600℃范围具有明显的负温度系数特性，适合制造高温热敏电阻器。
附图说明
图1为本发明的热敏陶瓷材料的X射线衍射图谱。
具体实施方式
实施例1
a、首先按CaCu3Ti4O12的组成，分别称取分析纯碳酸钙、氧化铜和二氧化钛进行混合，将混合的原料置于玛瑙研钵中研磨5小时，得到粉体；
b、将步骤a中研磨好的粉体在温度800℃煅烧4小时，研磨5小时后即得CaCu3Ti4O12粉体；
c、将步骤b得到的粉体材料以20Kg/cm2的压力进行压块成型，时间为1分钟，将成型的块体材料进行冷等静压，在压强为300MPa下保压2分钟，然后于温度1000℃烧结8小时，制得高温热敏陶瓷材料；
d、将步骤c烧结的陶瓷材料正反两面涂覆银浆电极，然后于温度600℃下退火30分钟，即得到温度范围为75℃-600℃，材料常数为B300℃/500℃＝5900K，温度75℃电阻率为6.01×105Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
实施例2
a、按La2/3Cu3Ti4O12的组成，分别称取三氧化二镧、氧化铜和二氧化钛进行混合，将混合的原料置于玛瑙研钵中研磨10小时，得到粉体；
b、将步骤a中研磨好的粉体在温度900℃煅烧6小时，研磨7小时后即得La2/ 3Cu3Ti4O12粉体；
c、将步骤b得到的粉体材料以15Kg/cm2的压力进行压块成型，时间为0.5分钟，将成型的块体材料进行冷等静压，在压强为400MPa下保压1分钟，然后于温度1100℃烧结6小时，制得高温热敏陶瓷材料；
d、将步骤c烧结的陶瓷材料正反两面涂覆银浆电极，然后于温度600℃下退火30分钟，即得到温度范围为75℃-600℃，材料常数为B300℃/500℃＝11000K，温度75℃电阻率为2.2×108Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
实施例3
a、按Y2/3Cu3Ti4O12的组成，分别称取三氧化二钇、氧化铜和二氧化钛进行混合，将混合的原料置于玛瑙研钵中研磨7小时，得到粉体；
b、将步骤a中研磨好的粉体在温度1000℃煅烧8小时，研磨11小时后即得Y2/ 3Cu3Ti4O12粉体；
c、将步骤b得到的粉体材料以10Kg/cm2的压力进行压块成型，时间为2分钟，将成型的块体材料进行冷等静压，在压强为350MPa下保压3分钟，然后于温度1200℃烧结4小时，制得高温热敏陶瓷材料；
d、将步骤c烧结的陶瓷材料正反两面涂覆银浆电极，然后于温度600℃下退火30分钟，即得到温度范围为75℃-600℃，材料常数为B300℃/500℃＝7100K，温度75℃电阻率为4.60×106Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
实施例4
a、按SrCu3Ti4O12的组成，分别称取氧化锶、氧化铜和二氧化钛进行混合，将混合的原料置于玛瑙研钵中研磨8小时，得到粉体；
b、将步骤a中研磨好的粉体在温度700℃煅烧10小时，研磨9小时后即得SrCu3Ti4O12粉体；
c、将步骤b得到的粉体材料以10Kg/cm2的压力进行压块成型，时间为2分钟，将成型的块体材料进行冷等静压，在压强为350MPa下保压3分钟，然后于温度900℃烧结10小时，制得高温热敏陶瓷材料；
d、将步骤c烧结的陶瓷材料正反两面涂覆银浆电极，然后于温度600℃下退火30分钟，即得到温度范围为75℃-600℃，材料常数为B300℃/500℃＝10600K，温度75℃电阻率为3.20×109Ωcm不同A位元素的类钙钛矿型高温热敏电阻材料。

Claims (2)

1.一种不同A位元素的类钙钛矿型高温热敏电阻材料，其特征在于该热敏电阻材料以碳酸钙、氧化铜、二氧化钛、三氧化二钇、三氧化二镧、氧化锶为原料，其化学组成为ACu3Ti4O12，为体心立方的类钙钛矿结构，其中A=Ca、La2/3、Y2/3或Sr制成材料常数为B 300℃/500℃=5900K-11000K，温度75℃电阻率为6.01×105Ωcm-3.2×109Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
2.根据权利要求1所述的类钙钛矿型高温热敏电阻材料的制备方法，其特征在于按下列步骤进行：
a、按ACu3Ti4O12的组成，其中A=Ca、La2/3、Y2/3或Sr，分别按碳酸钙、氧化铜和二氧化钛；或三氧化二钇、氧化铜和二氧化钛；或三氧化二镧、氧化铜和二氧化钛；或氧化锶、氧化铜和二氧化钛进行混合，将混合的原料置于玛瑙研钵中研磨5-10小时，得到粉体；
b、将步骤a中得到的粉体在温度700℃-1000℃煅烧4-10小时，研磨5-11小时后即得ACu3Ti4O12粉体；
c、将步骤b得到的粉体材料以10-20Kg/cm2的压力进行压块成型，时间为0.5-2分钟，将成型的块体材料进行冷等静压，在压强为300-400MPa下保压1-3分钟，然后于温度900℃-1200℃烧结4-10小时，制得高温热敏陶瓷材料；
d、将步骤c烧结的陶瓷材料正反两面涂覆银浆电极，然后于温度600℃下退火30分钟，即得到温度范围为75℃-600℃，材料常数为B 300℃/500℃=5900K-11000K，温度75℃电阻率为6.01×105Ωcm-3.2×109Ωcm的不同A位元素的类钙钛矿型高温热敏电阻材料。
CN202010511102.5A 2020-06-08 2020-06-08 一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法 Pending CN111620689A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010511102.5A CN111620689A (zh) 2020-06-08 2020-06-08 一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010511102.5A CN111620689A (zh) 2020-06-08 2020-06-08 一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法

Publications (1)

Publication Number Publication Date
CN111620689A true CN111620689A (zh) 2020-09-04

Family

ID=72256655

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010511102.5A Pending CN111620689A (zh) 2020-06-08 2020-06-08 一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法

Country Status (1)

Country Link
CN (1) CN111620689A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112851335A (zh) * 2021-02-19 2021-05-28 中国科学院新疆理化技术研究所 一种类钙钛矿基复合高温热敏电阻材料及其制备方法
CN114388204A (zh) * 2021-12-20 2022-04-22 中科立民新材料（扬州）有限公司 一种Fe3+离子掺杂类钙钛矿型高温热敏电阻材料及其制备方法
CN116063067A (zh) * 2023-01-16 2023-05-05 南昌航空大学 一种多主元素巨介电陶瓷材料及其制备方法和应用

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6143207A (en) * 1996-09-18 2000-11-07 Kabushiki Kaisha Toyota Chuo Kenkyusho Wide-range thermistor material and method for producing it
US6337991B1 (en) * 1996-11-05 2002-01-08 Corning Applied Technologies Corp. Large temperature coefficient of resistance material
US20080218940A1 (en) * 2007-03-05 2008-09-11 Northrop Grumman Systems Corporation High dielectric capacitor materials and method of their production
KR20110047481A (ko) * 2009-10-30 2011-05-09 전자부품연구원 산화물 전극 소재 및 이를 구비한 적층세라믹 전자부품
CN104183342A (zh) * 2014-08-11 2014-12-03 昆明贵金属研究所 一种钛酸铜钙（CaCu3Ti4O12）的新用途及其制备方法
CN104370539A (zh) * 2013-09-12 2015-02-25 铜仁学院 一种高使用温度无铅ptcr陶瓷及其制备方法
CN104692794A (zh) * 2015-02-07 2015-06-10 铜仁学院 一种无铅ptcr压电陶瓷材料及其制备方法
CN107324799A (zh) * 2017-08-07 2017-11-07 中国科学院新疆理化技术研究所 一种类钙钛矿型高温热敏电阻材料及其制备方法
CN108863346A (zh) * 2018-07-24 2018-11-23 云南大学 一种新型高b值的ntc热敏陶瓷材料及其制备方法与应用

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6143207A (en) * 1996-09-18 2000-11-07 Kabushiki Kaisha Toyota Chuo Kenkyusho Wide-range thermistor material and method for producing it
US6337991B1 (en) * 1996-11-05 2002-01-08 Corning Applied Technologies Corp. Large temperature coefficient of resistance material
US20080218940A1 (en) * 2007-03-05 2008-09-11 Northrop Grumman Systems Corporation High dielectric capacitor materials and method of their production
KR20110047481A (ko) * 2009-10-30 2011-05-09 전자부품연구원 산화물 전극 소재 및 이를 구비한 적층세라믹 전자부품
CN104370539A (zh) * 2013-09-12 2015-02-25 铜仁学院 一种高使用温度无铅ptcr陶瓷及其制备方法
CN104183342A (zh) * 2014-08-11 2014-12-03 昆明贵金属研究所 一种钛酸铜钙（CaCu3Ti4O12）的新用途及其制备方法
CN104692794A (zh) * 2015-02-07 2015-06-10 铜仁学院 一种无铅ptcr压电陶瓷材料及其制备方法
CN107324799A (zh) * 2017-08-07 2017-11-07 中国科学院新疆理化技术研究所 一种类钙钛矿型高温热敏电阻材料及其制备方法
CN108863346A (zh) * 2018-07-24 2018-11-23 云南大学 一种新型高b值的ntc热敏陶瓷材料及其制备方法与应用

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
M.A. SUBRAMANIAN A, ET AL: "ACu3Ti4O12 and ACu3Ru4O12 perovskites: high dielectric constants and valence degeneracy", 《SOLID STATE SCIENCES》 *
国家新材料产业发展专家咨询委员会: "《中国新材料产业发展年度报告 2017》", 31 August 2018, 冶金工业出版社 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112851335A (zh) * 2021-02-19 2021-05-28 中国科学院新疆理化技术研究所 一种类钙钛矿基复合高温热敏电阻材料及其制备方法
CN114388204A (zh) * 2021-12-20 2022-04-22 中科立民新材料（扬州）有限公司 一种Fe3+离子掺杂类钙钛矿型高温热敏电阻材料及其制备方法
CN116063067A (zh) * 2023-01-16 2023-05-05 南昌航空大学 一种多主元素巨介电陶瓷材料及其制备方法和应用
CN116063067B (zh) * 2023-01-16 2023-10-27 南昌航空大学 一种多主元素巨介电陶瓷材料及其制备方法和应用

Similar Documents

Publication Publication Date Title
CN111620689A (zh) 一种不同a位元素的类钙钛矿型高温热敏电阻材料及其制备方法
CN107324799B (zh) 一种类钙钛矿型高温热敏电阻材料及其制备方法
CN110550947A (zh) 一种钇和锆共掺杂的宽温区高温热敏电阻材料及其制备方法
Cheng et al. Preparation and microwave dielectric properties of low-loss MgZrNb2O8 ceramics
CN110903087B (zh) 一种低b高阻型宽温区高温热敏电阻材料及其制备方法和应用
CN103896579B (zh) 一种锂基低温烧结微波介质陶瓷材料及其制备方法
CN114394827B (zh) 一种低介电常数硅酸盐微波介质陶瓷及其制备方法
CN111548159A (zh) 一种锆酸盐体系负温度系数热敏电阻材料及制备方法
CN104557040A (zh) 一种高温热敏电阻材料及其制备方法
CN111018519B (zh) 一种铌酸钠掺杂钛酸铋钠-铝酸铋陶瓷的制备方法
CN104692802A (zh) 一种三氧化二钇掺杂的宽温区热敏电阻材料及其制备方法
US20210317003A1 (en) Preparation method and application of Yb3+-doped high temperature thermistor materials
CN112851335B (zh) 一种类钙钛矿基复合高温热敏电阻材料及其制备方法
CN111548155A (zh) 一种高压电高居里点铌酸钾钠-锑酸钾钠系无铅压电陶瓷及其制备方法
CN113979728A (zh) 一种双钙钛矿型与氧化钇复合的负温度系数热敏电阻材料的制备方法
JPH08231223A (ja) 熱電変換材料
CN108727013A (zh) 一种超低介电损耗高介电常数陶瓷介电材料及其制备方法
CN113956038A (zh) 一种铈掺杂钙钛矿型高温热敏陶瓷电阻材料及其制备方法
CN113004039A (zh) 一种钨青铜型高温热敏电阻材料及其制备方法
CN116023140B (zh) 基于高熵稀土锡酸盐的氧不敏感型负温度系数热敏材料
CN112939602B (zh) 一种钛酸盐体系负温度系数热敏电阻材料及制备方法
CN110054480A (zh) 一种具有三明治结构的负温度系数热敏陶瓷材料及制备方法和应用
CN116813335B (zh) 具有宽温区高电卡效应的钛酸铋钠基弛豫铁电陶瓷材料及其制备方法和应用
CN116621573A (zh) 一种用于高温宽温区测温的尖晶石型热敏电阻材料及其制备方法
KR102664215B1 (ko) 고온 유전 특성이 안정한 무연 유전체 세라믹스 조성물 및 그의 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20200904

RJ01 Rejection of invention patent application after publication