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Publikācija: Formation of High Temperature Compounds in W-C-B System by Reactive Spark Plasma Sintering

Publication Type Scientific article indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Formation of High Temperature Compounds in W-C-B System by Reactive Spark Plasma Sintering
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors Jānis Grabis
Ints Šteins
Inta Sīpola
Dzintra Ārija Rašmane
Keywords Amorphous boron | Boron carbide composites | Reactive spark plasma sintering | Tungsten carbide nanoparticles | Tungsten diboride
Abstract The formation of high temperature composites in W-C-B system from fine-grained powders in dependence on the ratio of components by using reactive spark plasma sintering was studied. The mixture of W2C and C nanoparticles was used as tungsten and carbon precursors. The W2C and carbon mixture with different ratio of components was prepared by reduction of WO<inf>3</inf> in presence of CH4 in nitrogen inductively coupled plasma. The specific surface area of the mixture was in the range of 36 – 42 m<sup>2</sup>/g in dependence on the content of carbon. The W2C and carbon particles were mixed mechanically with amorphous boron and densified using the spark plasma sintering technique at 1500 – 1700 °C and pressure of 30MPa for 4 minutes. The sintered bodies contained WB2 and B4C phases. The ratio of phase depends on the content of the components in the raw mixture.
DOI: 10.5755/j01.ms.21.3.7352
Hyperlink: http://www.vpa.ktu.lt/index.php/MatSc/article/view/7352 
Reference Grabis, J., Šteins, I., Sīpola, I., Rašmane, D. Formation of High Temperature Compounds in W-C-B System by Reactive Spark Plasma Sintering. Materials Science = Medziagotyra, 2015, Vol.21, No.3, pp.369-371. ISSN 1392-1320. e-ISSN 2029-7289. Available from: doi:10.5755/j01.ms.21.3.7352
Additional information Citation count:
  • Scopus  0
ID 22483