Low temperature synthesis of hexagonal boron nitride by solid state reaction in the presence of lithium salts
Yükleniyor...
Dosyalar
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present study, high crystalline nano sized hexagonal boron nitride powder (h-BN) was synthesized by classical solid-state reaction at 1100 degrees C using a mixture of boron oxide, urea and lithium salt (Li2O, LiCl, LiNO3). The characterization of samples was done by Fourier transformation infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Lithium salts played a positive role by lowering the formation temperature. The average grain sizes (22-26 nm) and graphitization index (1.7-2.9) of h-BN samples were calculated from XRD pattern. TEM images illustrated that the products were needle-like and multi-layered nano-crystalline h-BN powders.
Açıklama
Anahtar Kelimeler
Hexagonal Boron Nitride, Nanocrystalline Materials, O'Connor Method, Characterization
Kaynak
Ceramics International
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
44
Sayı
11
