[期刊论文]


Studies on the interactions of transition metal carbides and sodium chloride in the temperature range 900–1200 K in oxygen

作   者:
M. Mobin;A.U. Malik;

出版年:1992

页     码:1 - 14
出版社:Elsevier BV


摘   要:

The interaction of different metal carbides, namely Cr7C3, Fe3C, TiC, ZrC, NbC, TaC, MoC, WC, VC and HfC with NaCl in a temperature range 900-1200 K in flowing oxygen has been studied. The thermogravimetric studies were carried out by measuring weight change as function of time and mole fraction of NaCl in the reaction mixture. The different constituents in the reaction products were identified by X-ray diffraction analysis and the morphologies of the reaction products were discussed on the basis of metallography, scanning electron microscopy and energy dispersive X-ray analysis. The concentration of water soluble metal species was determined using atomic absorption spectrophotometry. The transition metal carbides on interaction with NaCl are decomposed into respective metal oxides which further interact with NaCl forming sodium metal oxide and/or metal chloride depending upon the local conditions prevailing during the interaction. The solubility measurements indicate the formation of water soluble metal species.



关键字:

暂无


所属期刊
Journal of Alloys and Compounds
ISSN: 0925-8388
来自:Elsevier BV