Synthesis of ultrafine ZrB 2 powders by sol-gel process

doi:10.1007/s11706-010-0094-0

Front. Mater. Sci.

2010, Vol. 4

Issue (3) : 285-290 https://doi.org/10.1007/s11706-010-0094-0

Research articles

Synthesis of ultrafine ZrB 2 powders by sol-gel process

Li-Juan YANG,Shi-Zhen ZHU,Qiang XU,Zhen-Yu YAN,Ling LIU,

School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;

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Abstract Ultrafine zirconium diboride (ZrB₂) powders have been synthesized by sol-gel process using zirconium oxychloride (ZrOCl₂·8H₂O), boric acid (H₃BO₃) and phenolic resin as sources of zirconia, boron oxide and carbon, respectively. The effects of the reaction temperature, B/Zr ratio, holding time, and EtOH/H₂O ratio on properties of the synthesized ZrB₂ powders were investigated. It was revealed that ultrafine (average crystallite size between 100 and 400 nm) ZrB₂ powders can be synthesized with the optimum processing parameters as follows: (i) the ratio of B/Zr is 4; (ii) the solvent is pure ethanol; (iii) the condition of carbothermal reduction heat treatment is at 1550°C for 20 min.

Keywords ultrafine ZrB2 powders sol-gel method synthesis

Issue Date: 05 September 2010

Cite this article:

Ling LIU,Li-Juan YANG,Qiang XU, et al. Synthesis of ultrafine ZrB 2 powders by sol-gel process[J]. Front. Mater. Sci., 2010, 4(3): 285-290.

URL:

https://academic.hep.com.cn/foms/EN/10.1007/s11706-010-0094-0
https://academic.hep.com.cn/foms/EN/Y2010/V4/I3/285

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