CN107032790A - 一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法 - Google Patents

一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法 Download PDF

Info

Publication number
CN107032790A
CN107032790A CN201710338549.5A CN201710338549A CN107032790A CN 107032790 A CN107032790 A CN 107032790A CN 201710338549 A CN201710338549 A CN 201710338549A CN 107032790 A CN107032790 A CN 107032790A
Authority
CN
China
Prior art keywords
collection
energy
energy device
hours
high data
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
CN201710338549.5A
Other languages
English (en)
Other versions
CN107032790B (zh
Inventor
侯育冬
于肖乐
郑木鹏
晏晓东
朱满康
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.)
Beijing University of Technology
Original Assignee
Beijing University of Technology
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 Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN201710338549.5A priority Critical patent/CN107032790B/zh
Publication of CN107032790A publication Critical patent/CN107032790A/zh
Application granted granted Critical
Publication of CN107032790B publication Critical patent/CN107032790B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/49—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates
    • C04B35/491—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates based on lead zirconates and lead titanates, e.g. PZT
    • C04B35/493—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates based on lead zirconates and lead titanates, e.g. PZT containing also other lead compounds
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • C04B41/5116—Ag or Au
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/88—Metals
    • 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
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • 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
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, 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
    • C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, 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
    • C04B2235/3284—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
    • C04B2235/02—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
    • C04B2235/3296—Lead oxides, plumbates or oxide forming salts thereof, e.g. silver plumbate
    • 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
    • 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

Abstract

一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法，属于压电陶瓷材料领域。该陶瓷材料的基体化学组成为0.2PZN‑0.8PZT，并在其中掺入体积x vol.％的Al2O3，x为0.25～0.65。以ZnO、Nb2O5、Pb3O4、ZrO2、TiO2为原料，制备出0.2PZN‑0.8PZT；再加入Al2O3，采用湿磨、烘干、造粒、压制成型、烧结步骤。本发明为进一步发展高性能压电能量收集材料提供了全新的视角，并且对大幅提高能量收集器件的机电转换性能，使之更加有效地回收再利用废弃的振动能量，更加节能、环保、安全，更加具有显著的经济和社会价值，都具有重大的推进作用。

Description

一种应用于能量收集器件的高机电转换复相压电陶瓷材料及 制备方法
技术领域
本发明属于压电陶瓷材料领域，具体涉及一种可应用于能量收集器件且具有高机电转换系数的0-3复相结构压电陶瓷材料及其制备方法。
背景技术
能源与环境是21世纪人类所关注的两大主题。当今世界化石能源日益短缺，寻找和发展可持续性的绿色环保新能源并进行高效采集已成为各国政府所面临的紧迫任务之一。而如何高效地将环境中废弃的能量收集并转换为可再利用的电能则作为新能源发展的主要方向之一备受关注。其中，压电能量收集器件基于压电材料的正压电效应，可将环境中产生的机械能转换为电能，具有机电转化效率高、输出电压高、不受电磁干扰、无需外加偏置等特点，因而具有广阔的应用前景。
目前，应用于压电能量收集器件的材料主要以压电单晶为主，但制造工艺繁琐、成本高、无法大规模应用。压电陶瓷材料具有制造工艺简单、成本低、可大规模生产等优点，但是，其电学性能往往较低，无法满足能量收集器件的应用要求。为了满足压电能量收集器件的要求，压电陶瓷必须具有高机电转换系数:
首先，机电转换系数d·g可用如下公式表示：
d：压电应变常数 g：压电电场常数
εT：介电常数 ε0：真空介电常数，8.854×10-12F/m
通过公式可以看出，对于材料本身来说，高的机电转换系数(d·g)的材料可以通过高的压电常数d和低的相对介电常数εT获得。
再者，就现有报道针对能量收集器用压电材料改性研究以美、日、韩科学家工作为主，但其均是基于传统思路，通过大范围调整PZT基多元固溶体系成分(包括改变基元配比或掺杂元素)，在准同型相界(MPB)线附近来寻求高换能系数。然而这些工作中换能系数(d·g)提升的幅度非常有限，主要原因在于MPB处自发极化数目多，电畴活性高，虽有利于获得高压电应变常数d，但同时介电常数εT也显著增大。尽管MPB附近的材料组成适用于压电致动器和压电换能器等电子陶瓷器件使用需要，但根据d·g公式，可以看到，高压电与高介电特性的并存不利于材料换能系数的有效提升，难以满足高性能压电能量收集器的应用需求。因此，必须要突破传统基于压电固溶体的材料设计理念，引入新的材料设计思路来寻找高换能系数压电材料的设计窗口。
综上所述，为了满足压电能量收集器件的高机电转换性能的要求，在本专利中，主要通过构建新颖的0-3复相结构压电陶瓷材料，来进一步调控目前广泛应用的Pb(Zn1/ 3Nb2/3)O3-Pb(Zr,Ti)O3(缩写为PZN-PZT)陶瓷材料体系，大幅提高其在能量收集方面的性能。
发明内容
本发明的目的是进一步调控PZN-PZT陶瓷材料体系，大幅提高其在能量收集方面的性能。在于采取将高绝缘与高熔点的Al2O3顺电相作为第二相引入PZN-PZT钙钛矿铁电极性基体中构建新颖的0-3复相结构，利用Al2O3第二相的低介电常数大幅弱化复相材料整体的介电常数，同时基于介电体/压电体界面极化稳定复相材料宏观压电应变常数，从而在特定组成获得高机电转换性能。
为实现上述目的，本发明采取以下技术方案。
本发明提供的一种应用于能量收集器件的压电陶瓷材料，其特征在于，采取将高绝缘与高熔点的Al2O3顺电相作为第二相引入PZN-PZT钙钛矿铁电极性基体中构建0-3复相结构，PZN-PZT钙钛矿铁电极性基体的化学组成为：0.2Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr1/2Ti1/2)O3(简记0.2PZN-0.8PZT)，其中掺入的第二相Al2O3为压电陶瓷材料体积的x vol.％，其中x的数值为0.25～0.65，优选0.4。
进一步Al2O3在晶界处。
本发明上述具有高能量密度的压电陶瓷材料的制备方法，其特征在于，通过二步混合法制备得到，具体包括以下步骤：
(1)合成0.2PZN-0.8PZT基体粉料，按照相应化学摩尔计量比称取原料：ZnO、Nb2O5、Pb3O4、ZrO2、TiO2，将称量好的原料放入球磨罐中，以无水乙醇为介质置于行星球磨机中球磨12小时；球磨后所得浆料进行烘干，然后在空气气氛下850℃煅烧2小时后随炉冷却，再将煅烧后所得产物0.2PZN-0.8PZT进行二次球磨，球磨后所得浆料进行烘干；
(2)按照该陶瓷材料体积分数x vol.％Al2O3和(1-x)vol.％[0.2PZN-0.8PZT]基体粉料(0.25≤x≤0.65)，将称量好的两种粉料放入球磨罐中，以无水乙醇为介质置于行星球磨机中球磨至少12小时，然后干燥，得到相应陶瓷粉体；
(3)然后采用聚乙烯醇水溶液作为粘结剂进行造粒，压制成型，于560℃排除粘结剂，然后在1000℃烧结，保温2小时，得到陶瓷材料。
优选：上述步骤(3)粘结剂的用量优选为每10g陶瓷粉体对应1.5ml粘结剂，粘结剂的质量浓度为5％。成型压力为100MPa。
烧结后的陶瓷片，经过抛光处理之后进行力学性能的测试，然后被上银电极，在120℃的硅油中，在35kV·cm-1的电压下极化30min。然后对样品进行电性能的测试。
其中，最佳样品为：99.6vol.％0.2PZN-0.8PZT/0.4vol.％Al2O3，其性能可达到：d33＝264pC/N，εT＝834.94，d33·g33＝9427.7×10-15m2/N，可以满足能量收集器件的要求。
与现有技术相比，本发明具有如下有益效果：
(1)本发明的具有高机电转换系数(d33·g33)的压电陶瓷材料，可有效提高能量收集器件的机电转换效率，是潜在的一种应用于能量收集器件的压电陶瓷材料。
(2)本发明的具有高机电转换性能的压电陶瓷材料结构稳定、制备方法简单、成本低、易于操作。本发明应用于能量收集器件，可以有效地回收再利用环境中废弃的能量，且绿色环保、安全、可持续，具有显著的经济及社会价值。
(3)本发明中提出的复相材料设计方法，突破了传统基于压电固溶体的材料改性理念，为进一步发展高性能压电能量收集材料提供了全新的视角。
总之，本发明不仅能够获得高换能系数材料体系，而且能为压电能量收集器材料设计提供新的技术思路与理论储备；同时，有助于深刻理解压电能量收集器材料设计中的瓶颈问题，为获得具有自主知识产权，国际领先的高换能系数材料奠定坚实基础。
附图说明
图1为本发明x＝0.40vol.％时，即99.60vol.％[0.2PZN-0.8PZT]/0.40vol.％Al2O3的XRD图谱；
图2为本发明x＝0.40vol.％时，即99.60vol.％[0.2PZN-0.8PZT]/0.40vol.％Al2O3的SEM图；
图3为本发明组成为(1-x)vol.％[0.2PZN-0.8PZT]/x vol.％Al2O3，x＝0.25～0.65vol.％时，介电常数εT、压电应变常数d33及机电转换系数(d33·g33)的数据图。
具体实施方式
下面通过实施例进一步阐明本发明的实质性特点和显著优点。应该指出，本发明决非仅局限于所陈述的实施例。
本发明提供的具有高机电转换性能的复相压电陶瓷材料，其化学组成为：(1-x)vol.％[0.2PZN-0.8PZT]/x vol.％Al2O3，其中x的数值为0.25～0.65。该压电陶瓷材料基体0.2PZN-0.8PZT的组成原料为：Pb3O4、ZnO、Nb2O5、ZrO2、TiO2。具体制备方法为，首先，合成0.2PZN-0.8PZT基体粉料，按照相应化学计量比称取原料：ZnO、Nb2O5、Pb3O4、ZrO2、TiO2，将称量好的原料放入球磨罐中，以无水乙醇为介质置于行星球磨机中球磨12小时；球磨后所得浆料进行烘干，然后在空气气氛下850℃煅烧2小时后随炉冷却，再将煅烧后所得产物0.2PZN-0.8PZT进行二次球磨，球磨后所得浆料进行烘干。然后再称取该陶瓷材料体积分数x vol.％Al2O3和(1-x)vol.％[0.2PZN-0.8PZT]基体粉料(0.25≤x≤0.65)，将称量好的两种粉料放入球磨罐中，以无水乙醇为介质置于行星球磨机中球磨12小时，然后干燥，得到相应陶瓷粉体。然后采用质量浓度为5％的聚乙烯醇水溶液作为粘结剂进行造粒，在100Mpa的压力下成型，压制成直径11.5mm，厚度1.5mm左右的成型物，于560℃排除粘结剂，然后在1000℃烧结，保温2小时，得到陶瓷材料。烧结后的陶瓷片，经过抛光处理之后，被上银电极，在120℃的硅油中，在35kV·cm-1的电压下极化30min。然后对样品进行电性能的测试。本发明通过测定的压电常数d33和介电常数εT，经过简单计算就可以得出机电转换系数d·g。
下面通过实施例进一步阐明本发明的实质性特点和显著优点。应该指出,本发明决非仅局限于所陈述的实施例。
实施例1：
先按基体化学式0.2Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr1/2Ti1/2)O3称量Nb2O5、Pb3O4、ZrO2、TiO2和ZnO，并在乙醇中球磨12小时。混合物经烘干后在850℃下煅烧2小时，再次在乙醇中球磨、烘干后，得到0.2PZN-0.8PZT基体粉料.再按99.75vol.％[0.2PZN-0.8PZT]/0.25vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3，并在乙醇中球磨12小时，混合物烘干后按10g粉体1.5mL粘结剂的比例混合，在100MPa下压制成型物，成型物于560℃排除粘结剂，并在1000℃下烧结2小时得到陶瓷。
实施例2：
按99.70vol.％[0.2PZN-0.8PZT]/0.30vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3。其它同实施例1。
实施例3：
按99.65vol.％[0.2PZN-0.8PZT]/0.35vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3。其它同实施例1。
实施例4：
按99.60vol.％[0.2PZN-0.8PZT]/0.40vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3。其它同实施例1。
实施例5：
按99.55vol.％[0.2PZN-0.8PZT]/0.45vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3。其它同实施例1。
实施例6：
按99.50vol.％[0.2PZN-0.8PZT]/0.50vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3。其它同实施例1。
实施例7：
按99.35vol.％[0.2PZN-0.8PZT]/0.65vol.％Al2O3组成，称量0.2PZN-0.8PZT和Al2O3。其它同实施例1。
表1上述实施例性能对比表

Claims (6)

1.一种应用于能量收集器件的高机电转换复相压电陶瓷材料，其特征在于，采取将高绝缘与高熔点的Al2O3顺电相作为第二相引入PZN-PZT钙钛矿铁电极性基体中构建0-3复相结构，PZN-PZT钙钛矿铁电极性基体的化学组成为：0.2Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr1/2Ti1/2)O3，简记0.2PZN-0.8PZT，其中掺入的第二相Al2O3为压电陶瓷材料体积的x vol.％，其中x的数值为0.25～0.65。
2.按照权利要求1所述的一种应用于能量收集器件的高机电转换复相压电陶瓷材料，其特征在于，x的数值为0.4。
3.按照权利要求1或2所述的一种应用于能量收集器件的高机电转换复相压电陶瓷材料，其特征在于，Al2O3在晶界处。
4.制备权利要求1所述的压电陶瓷材料的方法，其特征在于，通过二步混合法制备得到，具体包括以下步骤：
(1)合成0.2PZN-0.8PZT基体粉料，按照相应化学摩尔计量比称取原料：ZnO、Nb2O5、Pb3O4、ZrO2、TiO2，将称量好的原料放入球磨罐中，以无水乙醇为介质置于行星球磨机中球磨12小时；球磨后所得浆料进行烘干，然后在空气气氛下850℃煅烧2小时后随炉冷却，再将煅烧后所得产物0.2PZN-0.8PZT进行二次球磨，球磨后所得浆料进行烘干；
(2)按照该陶瓷材料体积分数x vol.％Al2O3和(1-x)vol.％[0.2PZN-0.8PZT]基体粉料，0.25≤x≤0.65，将称量好的两种粉料放入球磨罐中，以无水乙醇为介质置于行星球磨机中球磨至少12小时，然后干燥，得到相应陶瓷粉体；
(3)然后采用聚乙烯醇水溶液作为粘结剂进行造粒，压制成型，于560℃排除粘结剂，然后在1000℃烧结，保温2小时，得到陶瓷材料。
5.按照权利要求4的方法，其特征在于，步骤(3)粘结剂的用量优选为每10g陶瓷粉体对应1.5ml粘结剂，粘结剂的质量浓度为5％。
6.按照权利要求4的方法，其特征在于，步骤(3)成型压力为100MPa。。
CN201710338549.5A 2017-05-15 2017-05-15 一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法 Active CN107032790B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710338549.5A CN107032790B (zh) 2017-05-15 2017-05-15 一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710338549.5A CN107032790B (zh) 2017-05-15 2017-05-15 一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法

Publications (2)

Publication Number Publication Date
CN107032790A true CN107032790A (zh) 2017-08-11
CN107032790B CN107032790B (zh) 2020-04-24

Family

ID=59538406

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710338549.5A Active CN107032790B (zh) 2017-05-15 2017-05-15 一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法

Country Status (1)

Country Link
CN (1) CN107032790B (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107746277A (zh) * 2017-10-16 2018-03-02 北京工业大学 一种靶向掺杂构建高机电性能能量收集复相陶瓷材料及制备方法
CN109400153A (zh) * 2018-10-11 2019-03-01 北京工业大学 一种应用于压电能量收集具有高换能系数的四元系陶瓷材料及制备
CN113651614A (zh) * 2021-07-15 2021-11-16 北京工业大学 一种压电能量收集用兼具高和热稳定压电性能的陶瓷材料及制备
CN113999006A (zh) * 2021-11-07 2022-02-01 北京工业大学 具有晶界颗粒桥结构的高温细晶能量收集压电陶瓷材料及制备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A. NGAMJARUROJANA等: "Effect of Al2O3 Addition on Dielectric, Piezoelectric and Ferroelectric Properties of 0.2Pb(Zn1/3Nb2/3)O3–0.8Pb(Zr1/2Ti1/2)O3 Ceramics", 《ADVANCED MATERIALS RESEARCH》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107746277A (zh) * 2017-10-16 2018-03-02 北京工业大学 一种靶向掺杂构建高机电性能能量收集复相陶瓷材料及制备方法
CN107746277B (zh) * 2017-10-16 2021-01-05 北京工业大学 一种靶向掺杂构建高机电性能能量收集复相陶瓷材料及制备方法
CN109400153A (zh) * 2018-10-11 2019-03-01 北京工业大学 一种应用于压电能量收集具有高换能系数的四元系陶瓷材料及制备
CN109400153B (zh) * 2018-10-11 2021-05-25 北京工业大学 一种应用于压电能量收集具有高换能系数的四元系陶瓷材料及制备
CN113651614A (zh) * 2021-07-15 2021-11-16 北京工业大学 一种压电能量收集用兼具高和热稳定压电性能的陶瓷材料及制备
CN113999006A (zh) * 2021-11-07 2022-02-01 北京工业大学 具有晶界颗粒桥结构的高温细晶能量收集压电陶瓷材料及制备
CN113999006B (zh) * 2021-11-07 2022-09-30 北京工业大学 具有晶界颗粒桥结构的高温细晶能量收集压电陶瓷材料及制备

Also Published As

Publication number Publication date
CN107032790B (zh) 2020-04-24

Similar Documents

Publication Publication Date Title
CN107459346B (zh) 高电学性能的无铅压电钛酸钡基织构陶瓷的制备方法和应用
CN107032790A (zh) 一种应用于能量收集器件的高机电转换复相压电陶瓷材料及制备方法
CN102815938B (zh) 一种钛酸钡基无铅电致伸缩陶瓷及其制备方法
CN103482977A (zh) 高压电常数铌锑酸钾钠-锆酸铋钠钾无铅压电陶瓷及制备方法
CN105198417B (zh) 一种锆酸铋钠锂铈掺杂铌酸钾钠基陶瓷材料的制备方法
CN109734447B (zh) 具有优异温度稳定性的无铅织构化陶瓷及其制备方法
CN107698252A (zh) 一种陶瓷材料作为高温稳定压电能量收集材料的应用及制备方法
CN101870583A (zh) 外加氧化锑的锆钛酸铅压电陶瓷
CN109626988A (zh) 高压电响应和高居里温度的压电陶瓷材料及其制备方法
CN102992761B (zh) 一种应用于能量收集器件的压电陶瓷材料及制备方法
CN101337814B (zh) 低温烧结锑酸锂掺杂的五元系压电陶瓷材料及其制备方法
CN103360068A (zh) 锰锑掺杂的锆钛酸铅压电陶瓷
CN110128140A (zh) 一种镱铝共掺杂石榴石型Li7La3Zr2O12锂离子导体材料及其制备方法
CN103288450B (zh) 铌酸钾钠-锆钛酸铋钾/锂系无铅压电陶瓷
CN113511893B (zh) 一种bnt基三层结构的高储能密度陶瓷及其制备方法
CN103086714B (zh) 锆酸钡与氧化锆复合质子导体材料及其制备方法
CN102299254B (zh) 一种流延法制备大尺寸厚膜压电复合材料的方法
CN102584228A (zh) 掺杂二氧化铈的铌锑-锆钛酸铅压电陶瓷
CN106699177B (zh) 一种具有高发电特性的无铅压电能量收集材料及其制备方法
CN105541327A (zh) 一种铌酸钾钠基压电陶瓷的制备方法
CN104505146B (zh) 一种具有纳米核壳及内晶型结构的介电复合材料及制备方法
CN101386536A (zh) 一种用于降低电声转换器压电陶瓷烧结温度的添加物
CN114315345B (zh) 一种具有宽温稳定换能系数的高温压电能量收集陶瓷材料及制备
CN108727021B (zh) 一种压电能量收集用兼具宽组分窗口与高换能系数陶瓷材料及制备
CN109400153B (zh) 一种应用于压电能量收集具有高换能系数的四元系陶瓷材料及制备

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