Двухфазность кристаллической структуры твердых растворов (1-x)PbFe-=SUB=-2/3-=/SUB=-W-=SUB=-1/3-=/SUB=-O-=SUB=-3-=/SUB=--xPbTiO-=SUB=-3-=/SUB=- (x=0.25,0.3,0.35) при комнатной температуре
Keyword(s):
The evolution of the crystal structure of (1-x) PbFe2 / 3W1 / 3O3 - хPbTiO3 solid solutions depending on the PbTiO3concentrations (at x = 0.25, 0.3, 0.35) in the region of the morphotropic phase boundary was studied using x-ray diffraction at room temperature. It was established that all three compositions are a mixture of cubic and tetragonal phases, and an increase in the concentration of PbTiO3 above 30 mol. % leads to an increase of the tetragonal phase contribution. The parameters of the crystal structure and the content of both phases in these solid solutions are determined. It was shown that at room temperature there are static displacements of lead ions from the principle crystallographic positions.
2002 ◽
Vol 17
(5)
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pp. 1085-1091
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2013 ◽
Vol 7
(2)
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pp. 73-80
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2012 ◽
Vol 194
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pp. 187-193
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