Article(id=1319973050431426584, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319973019079000285, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20230643, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1693411200000, receivedDateStr=2023-08-31, revisedDate=1702828800000, revisedDateStr=2023-12-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1792635699135, onlineDateStr=2026-10-22, pubDate=1713542400000, pubDateStr=2024-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792635699135, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792635699135, creator=13701087609, updateTime=1792635699135, updator=13701087609, issue=Issue{id=1319973019079000285, tenantId=1146029695717560320, journalId=1263187385517883426, year='2024', volume='52', issue='4', pageStart='1171', pageEnd='1476', issueExtLink='null', onlineDate='null', pubDate='1713542400000', pubDateStr='2024-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792635691661, creator='13701087609', updateTime=1792641833008, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319998777822396474, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319973019079000285, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319998777822396475, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319973019079000285, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1310, endPage=1319, ext={EN=ArticleExt(id=1319973050649530393, articleId=1319973050431426584, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Energy Storage Performance of La3+ Doped Strontium Barium Niobate Glass Ceramics, columnId=1321894869182828764, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue on Dielectric Energy Storage Materials—Research Article, runingTitle=null, highlight=null, articleAbstract=
Introduction

As a core energy storage device of high energy pulse power supply, dielectric energy storage materials have the characteristics of high-power density, fast charging and discharging rate, good temperature stability, and intense aging resistance. They are widely used in power and electronic systems such as hybrid electric vehicles, oil exploration, directional weapons, etc., especially in high energy pulse power technology, having irreplaceable application prospects. With the rapid development of pulse power electronic systems, higher requirements are placed on the energy storage density, discharge current and time of dielectric capacitors in pulse power systems. These advanced devices are used in scenarios such as 100 kA current or 100 kV high voltage. This becomes some challenges for the energy storage density of dielectric capacitors. In addition, a problem of low energy storage density of dielectric capacitors also makes the pulse power system too large and cumbersome to meet the requirements of practical equipment platforms for small and lightweight high-tech weapons. Dielectric energy storage materials are key materials for pulse power devices, but their low energy storage density severely limits the miniaturization of dielectric capacitors. Further improving the breakdown field strength and increasing the dielectric constant to obtain high energy storage density dielectric materials remain a major challenge. It is necessary to develop new technologies that can improve the energy density of dielectric capacitors or explore new material systems with a high energy storage density. Doping rare-earth oxides into glass ceramics can enhance their dielectric and energy storage properties. The rare-earth element La3+ has a unique 4f electron layer structure, large ion radius and a high coordination number. Incorporating La3+ into the glass ceramics has an impact on their phase structure, dielectric properties, and energy storage performance. It is thus expected that the energy storage performance of glass ceramics can be improved via doping the rare-earth element La3+.

Methods

Strontium barium niobate glass ceramics doped with different mole fractions of La3+ were prepared via high-temperature melting and subsequent temperature-controlled crystallization. The strontium barium niobate glass ceramic had a composition of 20SrO-20BaO-20Nb2O5-33.5SiO2-5Al2O3-1.5B2O3. Different mole fractions (i.e., 0.5%, 1.0% and 1.5%, in mole) of La3+ elements were doped into the galss ceramics. The raw materials were weighed according to the stoichiometric ratio and evenly mixed/ground in a ball mill. The mixed raw materials were sintered in a high-temperature glass furnace at 1 550 ℃ for 2.5 h. The molten material was quickly poured into a preheated metal mold to create a bulk glass. The glass was then held at 650 ℃ for 3 h to remove any remaining stresses. The transparent glass was cut into flakes with the sizes of 1.5 mm×6.0 mm×6.0 mm and heated to 1 100 ℃ for 3 h. Finally, strontium barium niobate glass ceramics with varying mole fractions of La3+ doping were prepared.

The phase structure and content of La3+ doped strontium barium niobate-based glass ceramics were analyzed by a model D8 Advanced X-ray diffractometer. The crystal size and microstructure of glass ceramics were determined by a model XL30-FEG scanning electron microscope. The dielectric constant and dielectric loss of glass ceramics at different temperatures were measured by a model E4980A LCR meter. The breakdown strength of glass ceramics was evaluated by a model ET2671B breakdown resistance tester. The P-E polarization curve of glass ceramics was tested by a model Premier-II ferroelectric tester.

Results and discussion

The impact of doping mole fractions of La3+ on the phase structure, microstructure, and dielectric constant, loss, breakdown field strength, and energy storage performance of strontium barium niobate glass ceramics was investigated via experiments and theoretical simulation to reveal the mechanism of enhancing the energy storage performance of strontium barium niobate glass ceramics. The results show that La3+ doping can improve the crystallinity and the content of tungsten bronze structure Ba0.5Sr0.5Nb2O6 of the glass ceramics, thereby increasing the dielectric constant of strontium barium niobate glass-ceramics. At doping mole fractions of 0.5%, 1.0%, and 1.5% for La3+, the room-temperature dielectric constants of strontium barium niobate glass ceramics are 76.3, 96.3, and 88.1, respectively. These values are all greater than the dielectric constant of undoped strontium barium niobate glass ceramics (i.e., 65.7). La3+ doped strontium barium niobate glass ceramics have a superior temperature stability and a low loss. The optimum La3+ doping mole fraction can improve the microstructure and reduce the interface activation energy of glass ceramics, thus enhancing the breakdown strength of glass ceramics. When the doping mole fraction of La3+ is 1.0%, the breakdown strength of the glass ceramics reaches 1 458 kV/cm, and the dielectric constant is 96.3. The maximum energy storage density reaches 9.36 J/cm3, which is 2.25 times greater than that of undoped strontium barium niobate glass ceramics.

Conclusions

In the controlled doping amount of La3+ of glass ceramics, the phases and microstructure of glass ceramics could be effectively controlled. This improved the dielectric properties and breakdown strength of the glass ceramics. The increase in energy storage density of strontium barium niobate glass ceramic with an appropriate doping amount of La3+ was attributed to the increase in crystallinity and decrease in interfacial activation energy of the glass ceramics. This study could provide a reference for the development of high energy storage density glass-ceramics.

, authors=Jiao WANG, Qing WANG, Yuan WANG, Xing SUN, Haoshan HAO, Shaohui LIU, authorsList=Jiao WANG, Qing WANG, Yuan WANG, Xing SUN, Haoshan HAO, Shaohui LIU, authorCompany=null, correspAuthors=Shaohui LIU, authorNote=

WANG Jiao (1985-), female, Ph.D., Associate Professor. E-mail:

, correspAuthorsNote=
LIU Shaohui (1986-), male, Ph.D., Associate Professor. E-mail:
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高功率密度、高能量密度玻璃陶瓷电介质材料在小型化、轻量化、集成化脉冲功率器件领域具有重要的应用价值。通过高温熔融结合温度控制结晶工艺制备出不同La3+掺杂量铌酸锶钡基玻璃陶瓷。测试结果表明:稀土离子La3+掺杂可以提高玻璃陶瓷的结晶度与钨青铜结构Ba0.5Sr0.5Nb2O6相含量,从而提高了铌酸锶钡基玻璃陶瓷的相对介电常数,La3+掺杂铌酸锶钡玻璃陶瓷具有出色的温度稳定性和较低的损耗。稀土离子La3+掺杂可以改善铌酸锶钡基玻璃陶瓷的微观结构同时降低玻璃陶瓷的界面激活能,从而提升玻璃陶瓷的耐击穿场强。对于La3+掺杂的摩尔分数为1.0%时,玻璃陶瓷的耐击穿场强达到了1 458 kV/cm,其相应的介电常数为96.3,最高的储能密度达到9.36 J/cm3,是未掺杂铌酸锶钡玻璃陶瓷的能量密度2.25倍。该研究对开发高储能密度玻璃陶瓷提供了一种实验思路。

, authors=王娇, 汪庆, 王远, 孙兴, 郝好山, 刘少辉, authorsList=王娇, 汪庆, 王远, 孙兴, 郝好山, 刘少辉, authorCompany=null, correspAuthors=刘少辉, authorNote=

王娇(1985—),女,博士,副教授。

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刘少辉(1986—),男,博士,副教授。
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稀土离子La3+掺杂铌酸锶钡玻璃陶瓷储能性能
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王娇 , 汪庆 , 王远 , 孙兴 , 郝好山 , 刘少辉
硅酸盐学报 | 电介质储能材料专刊—研究论文 2024,52(4): 1310-1319
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硅酸盐学报 |电介质储能材料专刊—研究论文 2024 , 52 (4) : 1310 -1319
稀土离子La3+掺杂铌酸锶钡玻璃陶瓷储能性能
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王娇 , 汪庆, 王远, 孙兴, 郝好山, 刘少辉
作者信息
  • 河南工程学院材料工程学院,郑州 451191
通讯作者:
刘少辉(1986—),男,博士,副教授。
作者简介:

王娇(1985—),女,博士,副教授。

Energy Storage Performance of La3+ Doped Strontium Barium Niobate Glass Ceramics
Jiao WANG , Qing WANG, Yuan WANG, Xing SUN, Haoshan HAO, Shaohui LIU
Affiliations
  • School of Materials Engineering, Henan University of Engineering, Zhengzhou 451191, China
  • Corresponding Author:
    LIU Shaohui (1986-), male, Ph.D., Associate Professor. E-mail:

    WANG Jiao (1985-), female, Ph.D., Associate Professor. E-mail:

出版时间: 2024-04-20 doi: 10.14062/j.issn.0454-5648.20230643
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高功率密度、高能量密度玻璃陶瓷电介质材料在小型化、轻量化、集成化脉冲功率器件领域具有重要的应用价值。通过高温熔融结合温度控制结晶工艺制备出不同La3+掺杂量铌酸锶钡基玻璃陶瓷。测试结果表明:稀土离子La3+掺杂可以提高玻璃陶瓷的结晶度与钨青铜结构Ba0.5Sr0.5Nb2O6相含量,从而提高了铌酸锶钡基玻璃陶瓷的相对介电常数,La3+掺杂铌酸锶钡玻璃陶瓷具有出色的温度稳定性和较低的损耗。稀土离子La3+掺杂可以改善铌酸锶钡基玻璃陶瓷的微观结构同时降低玻璃陶瓷的界面激活能,从而提升玻璃陶瓷的耐击穿场强。对于La3+掺杂的摩尔分数为1.0%时,玻璃陶瓷的耐击穿场强达到了1 458 kV/cm,其相应的介电常数为96.3,最高的储能密度达到9.36 J/cm3,是未掺杂铌酸锶钡玻璃陶瓷的能量密度2.25倍。该研究对开发高储能密度玻璃陶瓷提供了一种实验思路。

铌酸锶钡  /  玻璃陶瓷  /  储能性能  /  介电性能  /  微观结构
Introduction

As a core energy storage device of high energy pulse power supply, dielectric energy storage materials have the characteristics of high-power density, fast charging and discharging rate, good temperature stability, and intense aging resistance. They are widely used in power and electronic systems such as hybrid electric vehicles, oil exploration, directional weapons, etc., especially in high energy pulse power technology, having irreplaceable application prospects. With the rapid development of pulse power electronic systems, higher requirements are placed on the energy storage density, discharge current and time of dielectric capacitors in pulse power systems. These advanced devices are used in scenarios such as 100 kA current or 100 kV high voltage. This becomes some challenges for the energy storage density of dielectric capacitors. In addition, a problem of low energy storage density of dielectric capacitors also makes the pulse power system too large and cumbersome to meet the requirements of practical equipment platforms for small and lightweight high-tech weapons. Dielectric energy storage materials are key materials for pulse power devices, but their low energy storage density severely limits the miniaturization of dielectric capacitors. Further improving the breakdown field strength and increasing the dielectric constant to obtain high energy storage density dielectric materials remain a major challenge. It is necessary to develop new technologies that can improve the energy density of dielectric capacitors or explore new material systems with a high energy storage density. Doping rare-earth oxides into glass ceramics can enhance their dielectric and energy storage properties. The rare-earth element La3+ has a unique 4f electron layer structure, large ion radius and a high coordination number. Incorporating La3+ into the glass ceramics has an impact on their phase structure, dielectric properties, and energy storage performance. It is thus expected that the energy storage performance of glass ceramics can be improved via doping the rare-earth element La3+.

Methods

Strontium barium niobate glass ceramics doped with different mole fractions of La3+ were prepared via high-temperature melting and subsequent temperature-controlled crystallization. The strontium barium niobate glass ceramic had a composition of 20SrO-20BaO-20Nb2O5-33.5SiO2-5Al2O3-1.5B2O3. Different mole fractions (i.e., 0.5%, 1.0% and 1.5%, in mole) of La3+ elements were doped into the galss ceramics. The raw materials were weighed according to the stoichiometric ratio and evenly mixed/ground in a ball mill. The mixed raw materials were sintered in a high-temperature glass furnace at 1 550 ℃ for 2.5 h. The molten material was quickly poured into a preheated metal mold to create a bulk glass. The glass was then held at 650 ℃ for 3 h to remove any remaining stresses. The transparent glass was cut into flakes with the sizes of 1.5 mm×6.0 mm×6.0 mm and heated to 1 100 ℃ for 3 h. Finally, strontium barium niobate glass ceramics with varying mole fractions of La3+ doping were prepared.

The phase structure and content of La3+ doped strontium barium niobate-based glass ceramics were analyzed by a model D8 Advanced X-ray diffractometer. The crystal size and microstructure of glass ceramics were determined by a model XL30-FEG scanning electron microscope. The dielectric constant and dielectric loss of glass ceramics at different temperatures were measured by a model E4980A LCR meter. The breakdown strength of glass ceramics was evaluated by a model ET2671B breakdown resistance tester. The P-E polarization curve of glass ceramics was tested by a model Premier-II ferroelectric tester.

Results and discussion

The impact of doping mole fractions of La3+ on the phase structure, microstructure, and dielectric constant, loss, breakdown field strength, and energy storage performance of strontium barium niobate glass ceramics was investigated via experiments and theoretical simulation to reveal the mechanism of enhancing the energy storage performance of strontium barium niobate glass ceramics. The results show that La3+ doping can improve the crystallinity and the content of tungsten bronze structure Ba0.5Sr0.5Nb2O6 of the glass ceramics, thereby increasing the dielectric constant of strontium barium niobate glass-ceramics. At doping mole fractions of 0.5%, 1.0%, and 1.5% for La3+, the room-temperature dielectric constants of strontium barium niobate glass ceramics are 76.3, 96.3, and 88.1, respectively. These values are all greater than the dielectric constant of undoped strontium barium niobate glass ceramics (i.e., 65.7). La3+ doped strontium barium niobate glass ceramics have a superior temperature stability and a low loss. The optimum La3+ doping mole fraction can improve the microstructure and reduce the interface activation energy of glass ceramics, thus enhancing the breakdown strength of glass ceramics. When the doping mole fraction of La3+ is 1.0%, the breakdown strength of the glass ceramics reaches 1 458 kV/cm, and the dielectric constant is 96.3. The maximum energy storage density reaches 9.36 J/cm3, which is 2.25 times greater than that of undoped strontium barium niobate glass ceramics.

Conclusions

In the controlled doping amount of La3+ of glass ceramics, the phases and microstructure of glass ceramics could be effectively controlled. This improved the dielectric properties and breakdown strength of the glass ceramics. The increase in energy storage density of strontium barium niobate glass ceramic with an appropriate doping amount of La3+ was attributed to the increase in crystallinity and decrease in interfacial activation energy of the glass ceramics. This study could provide a reference for the development of high energy storage density glass-ceramics.

strontium barium niobate  /  glass-ceramic  /  energy storage property  /  dielectric performance  /  microstructure
王娇, 汪庆, 王远, 孙兴, 郝好山, 刘少辉. 稀土离子La3+掺杂铌酸锶钡玻璃陶瓷储能性能. 硅酸盐学报, 2024 , 52 (4) : 1310 -1319 . DOI: 10.14062/j.issn.0454-5648.20230643
Jiao WANG, Qing WANG, Yuan WANG, Xing SUN, Haoshan HAO, Shaohui LIU. Energy Storage Performance of La3+ Doped Strontium Barium Niobate Glass Ceramics[J]. Journal of the Chinese Ceramic Society, 2024 , 52 (4) : 1310 -1319 . DOI: 10.14062/j.issn.0454-5648.20230643
  • 国家自然科学基金项目(51902088)
  • 河南省高校科技创新人才项目(21HASTIT014)
  • 河南省优秀青年基金项目(212300410031)
  • 河南省科技攻关计划项目(222102240004; 232102230022)
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doi: 10.14062/j.issn.0454-5648.20230643
  • 接收时间:2023-08-31
  • 首发时间:2026-10-22
  • 出版时间:2024-04-20
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  • 收稿日期:2023-08-31
  • 修回日期:2023-12-18
基金
国家自然科学基金项目(51902088)
河南省高校科技创新人才项目(21HASTIT014)
河南省优秀青年基金项目(212300410031)
河南省科技攻关计划项目(222102240004; 232102230022)
作者信息
    河南工程学院材料工程学院,郑州 451191

通讯作者:

刘少辉(1986—),男,博士,副教授。
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2种不同金属材料的力学参数
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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