Synthesis, characterization and properties of nanostructured (LaxBa1−x)B6 cathode materials by liquid phase reactive spark plasma sintering

Author

Zhang, J.X. ; Zhou, S.L. ; Liu, D.M. ; Bao, L.H. ; Wei, Y.F. ; Ma, R.G. ; Huang, Q.Z.

Author_Institution

Key Lab. of Adv. Functional Mater., Beijing Univ. of Technol., Beijing, China

fYear

2010

fDate

14-16 Oct. 2010

Firstpage

175

Lastpage

177

Abstract

This paper studies the preparation procedure of nanostructured (La_xBa_1-x)B₆ cathode materials by liquid phase reactive spark plasma sintering. The phase identification and purity of the sintered samples is determined by X-ray diffraction (XRD) and X-ray fluorescence. The vibrational property is examined by using Raman spectroscopy. The SEM and electron back-scattered diffraction (EBSD) investigation is carried out for observation of the morphology of fracture surface and surface crystal orientation. The electrical resistivity and the pulse thermionic emission of the material is determined by using a four-probe dc technique.

Keywords

Raman spectra; X-ray diffraction; X-ray emission spectra; barium compounds; crystal orientation; electrical resistivity; electron backscattering; electron diffraction; fluorescence; lanthanum compounds; nanofabrication; nanostructured materials; plasma materials processing; scanning electron microscopy; sintering; surface morphology; thermionic electron emission; vibrational modes; (La_0.55Ba_0.45)B₆; EBSD; Raman spectroscopy; SEM; X-ray diffraction; X-ray fluorescence; XRD; electrical resistivity; electron back-scattered diffraction; four-probe dc technique; fracture surface; liquid phase reactive spark plasma sintering; nanostructured cathode materials; pulse thermionic emission density; surface crystal orientation; surface morphology; vibrational property; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International

Conference_Location

Nanjing

Print_ISBN

978-1-4244-6645-0

Type

conf

DOI

10.1109/IVESC.2010.5644398

Filename

5644398