Synthesis of Ti(C, N, O) ceramic from rutile at low temperature by CH4-H-2-N-2 gas mixture

doi:10.1016/j.ijrmhm.2021.105659

CORC > 兰州理工大学 > 兰州理工大学

	Synthesis of Ti(C, N, O) ceramic from rutile at low temperature by CH4-H-2-N-2 gas mixture
	Fan, Gangqiang 1,3; Hou, Youling 1,3; Huang, Dejun 4; Dang, Jie 1,2; Zhang, Run 1,3; Xiang, Junyi 1; Lv, Xuewei 1,3; Ding, Xiaoming 5
刊名	INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
	2021-12
卷号	101
关键词	Ti(C, N, O) TiO2 CH4-H-2-N-2 gas mixture Novel synthesis process
ISSN号	0263-4368
DOI	10.1016/j.ijrmhm.2021.105659
英文摘要	Titanium carbides, oxides, nitrides, and carbonitrides possess many special and excellent properties. But the high production cost caused by the traditional carbothermic reduction process severely limits the wide applications. In this study, a novel synthesis process has been proposed by reducing and carbonitriding TiO2 with a CH4-H-2-N-2 gas mixture at low temperatures. The synthesis of Ti(C, N, O), reaction mechanism, and the composition of the product have been investigated. Thermodynamic analysis indicated that TiO2 could be ultimately reduced and carbonitrided to Ti(C, N, O) by CH4-H-2-N-2 gas mixture. Based on the predictions of thermodynamics, the effects of reduction time, temperature, and gas composition have been studied experimentally. The obtained results indicated that increasing reduction temperature and introduction of N-2 are beneficial to the synthesis of Ti(C, N, O). Finally, the optimum reaction conditions have been obtained. The density functional theory (DFT) results further demonstrated the reaction mechanism. This work provides a new approach to prepare metallic carbonitrides from their oxides.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000706708200003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150116]
专题	兰州理工大学
作者单位	1.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 3.Chongqing Univ, Chongqing Key Lab Vanadium Titanium Met & New Mat, Chongqing 400044, Peoples R China; 4.Malvern Panalyt China, Shanghai 200233, Peoples R China; 5.Natl Innovat Qingdao High Speed Train Mat Res Ins, Qingdao 266109, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Fan, Gangqiang,Hou, Youling,Huang, Dejun,et al. Synthesis of Ti(C, N, O) ceramic from rutile at low temperature by CH4-H-2-N-2 gas mixture[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2021,101.
APA	Fan, Gangqiang.,Hou, Youling.,Huang, Dejun.,Dang, Jie.,Zhang, Run.,...&Ding, Xiaoming.(2021).Synthesis of Ti(C, N, O) ceramic from rutile at low temperature by CH4-H-2-N-2 gas mixture.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,101.
MLA	Fan, Gangqiang,et al."Synthesis of Ti(C, N, O) ceramic from rutile at low temperature by CH4-H-2-N-2 gas mixture".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 101(2021).