CRYSTAL-STRUCTURE AND DEFECTS OF ZR4CO4SI7 (V-PHASE) INVESTIGATED BY HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPE

Authors
MAO JF YE HQ NING XG HE LL YANG DZ
Citation
Jf. Mao et al., CRYSTAL-STRUCTURE AND DEFECTS OF ZR4CO4SI7 (V-PHASE) INVESTIGATED BY HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPE, Journal of materials research, 12(2), 1997, pp. 377-384
Citations number
13
Categorie Soggetti
Material Science
Journal title
Journal of materials research → ACNP
ISSN journal
08842914
Volume
12
Issue
2
Year of publication
1997
Pages
377 - 384
Database
ISI
SICI code
0884-2914(1997)12:2<377:CADOZ(>2.0.ZU;2-3
Abstract
The results of high resolution transmission electron microscope (HRTEM ) observation and image simulation show that Zr4Co4Si7 possesses the s ame structure type of Zr4CO4Ge7. Addition of Fe or Ni into the Zr4Co4S i7 compound, except that the dimensions changed slightly, does not cha nge the lattice type and coordination in the crystal structure, mainta ining the V-phase structure. Also, twins with coherent boundaries and partially coherent interfaces are observed. The image conditions of Zr 4Co4Si7 and the structure differences between Zr4Co4Si7 and tetrahedra l close-packed phases are also discussed.