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|Title: ||In-situ high-temperature X-ray diffraction studies of non-stoichiometric Ni-Zr substituted barium hexagonal ferrites prepared by citrate precursor route|
|Authors: ||BAHADUR, D|
|Keywords: ||thermal-expansion behavior|
|Issue Date: ||1998|
|Publisher: ||ELSEVIER SCIENCE SA|
|Citation: ||MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 252(1), 109-116|
|Abstract: ||The mechanism of evolution of hexaferrite has been studied in non-stoichiometric Ni-Zr substituted barium ferrites using the technique of in-situ high-temperature X-ray diffraction. Vacancies in the lattice and a small excess of Ba2+ have been found to aid phase formation at lower temperatures. Furthermore, the mechanism of hexaferrite formation is different in non-stoichiometric compositions as compared to the stoichiometric samples. The thermal expansion data shows lowering of the thermal expansion coefficients due to relaxing of bonds in non-stoichiometric compositions. (C) 1998 Elsevier Science S.A. .|
|Appears in Collections:||Article|
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