Effect of initial composition on boron carbide production by SHS process followed by acid leaching

Murat Alkan, M. Seref Sonmez, Bora Derin*, Onuralp Yücel

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

25 Atıf (Scopus)

Özet

In this study, iron-free boron carbide powders (B4C) were produced from the milled SHS (self-propagating high temperature synthesis) products followed by leaching in an aqueous hydrochloric acid (HCl) media. The SHS mixtures were composed of boron oxide (B2O3), carbon black and magnesium. Thermochemical simulations were performed to estimate the effect of initial composition on the SHS process. In the SHS experiments, it was found that the formations of boron carbide and magnesium borates were directly related with B2O3 and carbon black contents in the initial SHS mixture. The aqueous HCl leaching of the SHS products did not only eliminate the unwanted byproducts (i.e. MgO, Mg3B2O 6 and Mg2B2O5) but also enhanced substantially the pore structure of the particles. Even though the leached SHS particles (d0.5 = 7.96 μm) were much coarser than that of the commercial powder (d0.5 = 1.73 μm), the surface area of the leached product (15.56 m2/g) was found to be larger than that of commercial one (4.92 m2/g).

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1688-1691
Sayfa sayısı4
DergiSolid State Sciences
Hacim14
Basın numarası11-12
DOI'lar
Yayın durumuYayınlandı - 2012

Parmak izi

Effect of initial composition on boron carbide production by SHS process followed by acid leaching' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

Alıntı Yap