Abstract

Zirconium compounds has been widely attention over the last decades due to its excellent physical and chemical properties. Zirconium nitride nanopowders were synthesized via a simple direct carbothermic nitridation process of internal gel derived zirconia in the presence of nano-sized carbon black. The effects of reaction temperature, dwell time and molar ratio of carbon black to Zr (C/Zr) on the phase composition, grain size and crystal parameters of products were studied. Based upon the analysis of crystallite phase evolution and microstructure characterization, it was found that zirconium oxynitride is intermediate product and then O atoms in oxynitride were extracted by oxygen getter, carbon black. Anion sites were directly replaced by N atoms to form rock-salt type nitride in carbothermic nitridation process.

Details

Title
Synthesis and Characterization of Zirconium Nitride Nanopowders by Internal Gelation and Carbothermic Nitridation
Author
Zhao, Shijiao 1 ; Ma, Jingtao 1   VIAFID ORCID Logo  ; Xu, Rui 1 ; Lin, Xuping 1 ; Cheng, Xing 2 ; Hao, Shaochang 2 ; Zhao, Xingyu 2 ; Deng, Changsheng 1 ; Liu, Bing 2 

1  State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing, China; Collaborative Innovation Center of Advanced Nuclear Energy Technology, Tsinghua University, Beijing, China; Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China 
2  Collaborative Innovation Center of Advanced Nuclear Energy Technology, Tsinghua University, Beijing, China; Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China 
Pages
1-9
Publication year
2019
Publication date
Dec 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-019-55450-x
ProQuest document ID
2327344975
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.