Effect of dispersants on the physicochemical properties of ultra-fine ZrB2 powder in Sol-gel synthesis

doi:10.1016/j.surfin.2021.101162

	Effect of dispersants on the physicochemical properties of ultra-fine ZrB2 powder in Sol-gel synthesis
	Shen, Hao 1,2,3; Li, Xinyang 2,3; Hu, Chenguang 2,3; Wang, Zhen 2,3; Hu, Xiaoye 2,3; Li, Yue 2,3; Yan, Jian 1
刊名	SURFACES AND INTERFACES
	2021-08-01
卷号	25
关键词	ZrB2 Sol-gel Dispersant Ultra-fine High purity
ISSN号	2468-0230
DOI	10.1016/j.surfin.2021.101162
通讯作者	Hu, Xiaoye(hxy821982@issp.ac.cn) ; Yan, Jian(yanjian@hfut.edu.cn)
英文摘要	Boride-based ultra-high temperature ceramics have been extensively utilized as high temperature thermal protection materials due to its excellent physical and mechanical properties. Yet, the synthesis of boride-based ceramic powder with high purity, ultra-fine structure and excellent dispersity remains a great challenge to reach. In this work, zirconium diboride (ZrB2) ultra-high temperature ceramic powder with high purity and ultrafine structure (size of hundreds of nanometers) was prepared by carbothermal reaction combined with sol-gel method. Various dispersants including oleic acid (OA), polyethylene glycol (PEG) and polyvinyl pyrrolidone (PVP) were employed during the preparation procedure to tune the physicochemical properties of the resultant ZrB2. According to the X-ray diffraction and microscopy characterizations, it was revealed that the OA turned up as the most effective dispersant to obtain the ZrB2 powder with hundreds-nanometer-scale and high purity. Besides, the thermogravimetry-differential thermal analysis and Fourier transformed infrared spectroscopy analysis were performed, unveiling the function of OA in enhancing the dispersity of the ZrB2. Such a work on the effect of dispersant on the preparation of ultra-high temperature ceramic powder could shed some important light for the development of high temperature resistant materials.
资助项目	Fundamental Research Funds for the Central Universities of China[PA2020GDJQ0026]
WOS关键词	HIGH-TEMPERATURE ; OLEIC-ACID ; BORO/CARBOTHERMAL REDUCTION ; FE3O4 NANOPARTICLES ; NANO-POWDERS ; CERAMICS ; SURFACE ; BEHAVIOR ; ZNO
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000681232500007
资助机构	Fundamental Research Funds for the Central Universities of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123075]
专题	中国科学院合肥物质科学研究院
通讯作者	Hu, Xiaoye; Yan, Jian
作者单位	1.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanostruct, HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Shen, Hao,Li, Xinyang,Hu, Chenguang,et al. Effect of dispersants on the physicochemical properties of ultra-fine ZrB2 powder in Sol-gel synthesis[J]. SURFACES AND INTERFACES,2021,25.
APA	Shen, Hao.,Li, Xinyang.,Hu, Chenguang.,Wang, Zhen.,Hu, Xiaoye.,...&Yan, Jian.(2021).Effect of dispersants on the physicochemical properties of ultra-fine ZrB2 powder in Sol-gel synthesis.SURFACES AND INTERFACES,25.
MLA	Shen, Hao,et al."Effect of dispersants on the physicochemical properties of ultra-fine ZrB2 powder in Sol-gel synthesis".SURFACES AND INTERFACES 25(2021).