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Densification of NaSr2Nb5O15 Ferroelectric Ceramics with Tetragonal Tungsten Bronze Structures
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Rui LV, Liangliang LIU, Yongqiang WANG
Journal of the Chinese Ceramic Society | 2021, 49(9) : 1943 - 1951
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Journal of the Chinese Ceramic Society | 2021, 49(9): 1943-1951
• Research Article •
Densification of NaSr2Nb5O15 Ferroelectric Ceramics with Tetragonal Tungsten Bronze Structures
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Rui LV, Liangliang LIU, Yongqiang WANG
Affiliations
  • College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

    • LV Rui (1994-), male, Master candidate. E-mail:

About Author:

LV Rui (1994-), male, Master candidate. E-mail:

Published: 2021-09-20 doi: 10.14062/j.issn.0454-5648.20200920
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Ceramics with tetragonal tungsten bronze (TTB)-type structures undoped with sintering aids are difficult to densify due to the high anisotropy of their crystal structures. In this paper, TTB-structured NaSr2Nb5O15 (NSN) was selected as the research object to prepare dense ceramics by the design of raw materials. Two powders synthesized by conventional solid-state sintering and molten salt methods were used. The former powder consisted of three phases as the matrix, NSN and intermediate phases (NaNbO3 and SrNb2O6). The latter powder, with a large particle size, acted as a seed. The effects of seed content on the sintering behavior and microstructure of NSN ceramics were investigated. Dense NSN ceramics were prepared by reaction sintering using seed addition into the matrix. The seed content had an obvious influence on the microstructures of the NSN ceramics.

sodium niobate strontium  /  densification  /  microstructure  /  lead-free ceramics
吕蕊, 刘亮亮, 王永强. 四方钨青铜结构NaSr2Nb5O15铁电陶瓷的致密化. 硅酸盐学报, 2021 , 49 (9) : 1943 -1951 . DOI: 10.14062/j.issn.0454-5648.20200920
Rui LV, Liangliang LIU, Yongqiang WANG. Densification of NaSr2Nb5O15 Ferroelectric Ceramics with Tetragonal Tungsten Bronze Structures[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (9) : 1943 -1951 . DOI: 10.14062/j.issn.0454-5648.20200920
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Year 2021 volume 49 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20200920
  • Receive Date：2020-12-15
  • Online Date：2026-10-30
  • Published：2021-09-20
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History
  • Received：2020-12-15
  • Revised：2021-02-05
Funding
Affiliations
    College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Corresponding:

LIU Liangliang (1985-), male, Ph.D, Lecturer. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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