Study on Thermodynamic Principle of Preparation of VC by Carbon-Heat Reducing

Ze Rong Li; Zhi Qin Cao; Min Xian Fang

doi:10.4028/www.scientific.net/AMR.328-330.1253

Paper Titles

Effect of Nano-Filler Network on the Rheological Behaviours of Poly(vinylidene fluoride) Nanocomposites
p.1232

Exploration of the Defect’s Effect on the Mechanical Properties of Different Orientated Nanowires
p.1239

Two High-Speed and Large-Drive-Current BiCMOS Analog Switches
p.1245

The Key Technology in the Parallel Control of Inverter
p.1249

Study on Thermodynamic Principle of Preparation of VC by Carbon-Heat Reducing
p.1253

The Preparation of Mica Composite Insulation Material with Starch Adhesive and its Modified Enhancement
p.1259

Preparation and Performance of RTV Coating for Anti-Pollution Flashover with Superhydrophobicity by Filling CaCO₃/SiO₂ Composite Particles into Silicone Rubber
p.1263

Effects of Alloy Powder for WC/Steel Base Surface Composite Structure and Interface
p.1268

Experimental Study on CTOD Fracture Toughness of Welded Joints of Low Temperature Steel
p.1272

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 328-330Study on Thermodynamic Principle of Preparation of...

Study on Thermodynamic Principle of Preparation of VC by Carbon-Heat Reducing

Abstract:

This paper analyzed thermodynamic principle of preparation VC,VN and V(C,N) with V₂O₅ and C by carbon-heat reduction. The results show that synthesizing process includes phase change and the vanadium oxide is reduced gradually. And because of the reaction kinetics, there are no obvious boundaries between each reaction. There are two principles for V₂O₅ reducing by carbon thermal method. One reaction depends mainly on CO/CO₂ gas-solid transmitted and another reaction depends mainly on the solid-solid reaction between carbon and vanadium oxide. But no matter what kind of mixing method, two kinds of reaction mechanism are also present in different degree. The reacting principle which is primary is depended on original mixed condition between V₂O₅ and C. It is propitious to reducing process by increasing temperature. The preparation of VC should be done at the condition with CO or vacuum.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 328-330)

Pages:

1253-1258

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.328-330.1253

Citation:

Cite this paper

Online since:

September 2011

Authors:

Ze Rong Li, Zhi Qin Cao, Min Xian Fang

Keywords:

Carbon-Heat Reducing, Thermodynamic, Vanadium Carbide

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Abachi P, Ganji Y. P: Tribology - Materials, Surfaces & Interfaces, Vol. 3(2009), P. 31-36.

Google Scholar

[2] Jing Sun , Qingfeng Wei, Xiaona Guo, Baoyin Li and Qunying Li: Journal of Hard Alloy , Vol. 21(2004) , pp.15-9. (In Chinese).

Google Scholar

[3] Nagasaki, Z. p. Lin: Dual Alloy State Atlas. (Trans the Metallurgical Industry Press, Japan 2004). P. 322.

Google Scholar

[4] Н. Nagasaki: Vanadium and its Application in Black Metallurgy (Trans Science and Technology Literature Press Chongqing Branch, Soviet 1987)P. 8-9.

Google Scholar

[5] X.F. Xu, X.T. Wang: Steel Vanadium Titanium, Vol. 24(2003)No. 1, pp.46-49. (In Chinese).

Google Scholar

[6] Z.L. Wang, Y.P. Zhou: Physical chemistry. (Higher Education Press, China 2003 ). P. 216-218.

Google Scholar

[7] X.G. Huang: The principle of Steel metallurgical. (The Metallurgical Iindustry Press, China 2002 ). pp.436-439.

Google Scholar

[8] X.F. Zhang: Journal of Hebei Institute of Technology, Vol. 25(2003)No. 1, pp.21-26. (In Chinese).

Google Scholar

[9] WIFT G. A, KOC R: Journal of materials science, Vol. 34 (1999) No. 13, pp.3083-3093.

Google Scholar

[10] Midwest Research Institute: US, 5417952[P]. (1995).

Google Scholar

[11] R.Z. Tang: Rare Metal and Hard Alloy, Vol. 141 (2000) No. 2, p.11. -13. (In Chinese).

Google Scholar