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Synthesis of hexagonal-prism-like ZrB2 by a sol-gel route

文献类型：期刊论文

作者Yang, Biyun1; Li, Junping2; Zhao, Bin1; Hu, Yongzhen1; Wang, Tingyu1; Sun, Dongfeng1; Li, Ruixing1; Yin, Shu3; Feng, Zhihai2; Tang, Qing4
刊名POWDER TECHNOLOGY
出版日期2014-04-01
卷号256期号:1页码:522-528
关键词Synthesis Sol-gel Carbothermal reduction Crystal morphology ZrB2
ISSN号0032-5910
其他题名Powder Technol.
中文摘要One-dimensional (1D) materials can increase mechanical properties along the long axis of the reinforcement for the composites because of the transfer of stress across the reinforcement-matrix interfaces parallel with the load. In this study, 1D hexagonal-prism-like ZrB2 particles were synthesized by a sol-gel route using zirconium n-propoxide, boric acid, acetic acid, and fructose. Fructose acted as both a modifier and a carbon source for carbothermal reduction reaction. For comparison purposes, both nascent state gel and aged gel were used to clarify the aging-time-dependent mechanism for ZrB2 synthesis. As a result, a single phase ZrB2 could only be obtained from the aged gel with the optimal ratios (by mol.) of 1.2 and 5 for both fructose and acetic acid to zirconium n-propoxide, respectively, reduced at an optimal temperature of 1550 degrees C for 2 h. Additionally, it revealed a perfect hexagonal-prism-like morphology for the ZrB2 particles with a uniform size and shape distribution, and average particle size of ca. 0.8 mu m in diameter of excircle of the hexagonal cross-section. (C) 2014 Elsevier B.V. All rights reserved.
英文摘要One-dimensional (1D) materials can increase mechanical properties along the long axis of the reinforcement for the composites because of the transfer of stress across the reinforcement-matrix interfaces parallel with the load. In this study, 1D hexagonal-prism-like ZrB2 particles were synthesized by a sol-gel route using zirconium n-propoxide, boric acid, acetic acid, and fructose. Fructose acted as both a modifier and a carbon source for carbothermal reduction reaction. For comparison purposes, both nascent state gel and aged gel were used to clarify the aging-time-dependent mechanism for ZrB2 synthesis. As a result, a single phase ZrB2 could only be obtained from the aged gel with the optimal ratios (by mol.) of 1.2 and 5 for both fructose and acetic acid to zirconium n-propoxide, respectively, reduced at an optimal temperature of 1550 degrees C for 2 h. Additionally, it revealed a perfect hexagonal-prism-like morphology for the ZrB2 particles with a uniform size and shape distribution, and average particle size of ca. 0.8 mu m in diameter of excircle of the hexagonal cross-section. (C) 2014 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]NANOCARBON-DEPENDENT SYNTHESIS ; IN-SITU SYNTHESIS ; CARBON SOURCE ; ZIRCONIUM ; ZRO2 ; MICROSTRUCTURE ; NANOPARTICLES ; MORPHOLOGY ; REDUCTION ; COMPOSITE
收录类别SCI
原文出处://WOS:000335097600062
语种英语
WOS记录号WOS:000335097600062
公开日期2014-08-28
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/11005]  
专题过程工程研究所_研究所（批量导入）
作者单位1.Beihang Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China
2.Aerosp Res Inst Mat & Proc Technol, Beijing 100076, Peoples R China
3.Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Biyun,Li, Junping,Zhao, Bin,et al. Synthesis of hexagonal-prism-like ZrB2 by a sol-gel route[J]. POWDER TECHNOLOGY,2014,256(1):522-528.
APA Yang, Biyun.,Li, Junping.,Zhao, Bin.,Hu, Yongzhen.,Wang, Tingyu.,...&Sato, Tsugio.(2014).Synthesis of hexagonal-prism-like ZrB2 by a sol-gel route.POWDER TECHNOLOGY,256(1),522-528.
MLA Yang, Biyun,et al."Synthesis of hexagonal-prism-like ZrB2 by a sol-gel route".POWDER TECHNOLOGY 256.1(2014):522-528.

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来源：过程工程研究所

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