Effects of process parameters on tungsten boride production from WO 3 by self propagating high temperature synthesis

Sertac Yazici, Bora Derin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

In the present study, the production parameters of tungsten boride compounds by self-propagating high-temperature synthesis (SHS) method and following leaching process were investigated. In the SHS stage, the products consisting of tungsten borides, magnesium oxide, magnesium borate, and also minor compounds were obtained by using different initial molar ratios of WO 3, Mg and B2O3 as starting materials. In the leaching step, Mg containing byproducts, i.e. MgO and Mg3B 2O6, existed in the selected SHS product synthesized at 1:8:2.5 initial molar ratio of WO3:Mg:B2O3 were leached out by using aqueous HCl solution to obtain clean tungsten boride compounds at different experimental parameters which are time, acid concentration and temperature. The acid leaching experiments of the SHS product showed that optimum leaching conditions could be achieved by using 5.8 M HCl at 1/10 S/L ratio and the temperature of 80 °C for 60 min.

Original languageEnglish
Pages (from-to)89-93
Number of pages5
JournalMaterials Science and Engineering: B
Volume178
Issue number1
DOIs
Publication statusPublished - 1 Jan 2013

Funding

The authors are pleased to acknowledge the financial support for this research from BOREN (Turkish National Boron Research Institute – Project No: 2007.C0064) and Istanbul Technical University Research Foundation .

FundersFunder number
Boren
Turkish National Boron Research Institute

    Keywords

    • HCl leaching
    • SHS
    • Tungsten boride

    Fingerprint

    Dive into the research topics of 'Effects of process parameters on tungsten boride production from WO 3 by self propagating high temperature synthesis'. Together they form a unique fingerprint.

    Cite this