Role of charge compensation mechanism in La‐modified Pb(Mg1/3Nb2/3)O3–PbTiO3 ceramics: Enhanced ordering and pyrochlore formation
SM Gupta, D Viehland - Journal of applied physics, 1996 - pubs.aip.org
Selected area electron-diffraction SAED investigations were performed on La-modified 1x
PbMg1/3Nb2/3 O3–x PbTiO3 ceramics for compositions near the morphotropic phase
boundary for various nonstoichiometric ordering conditions of Mg and Nb on the B-site
cation positions. Studies were performed on specimens with La contents between 0 and 10
at.% and for x 0.35. Specimens were fabricated either by: i keeping the average Mg/Nb/Ti
ratio unchanged and while creating B-site vacancies La–PMN–PT, or ii changing the …
PbMg1/3Nb2/3 O3–x PbTiO3 ceramics for compositions near the morphotropic phase
boundary for various nonstoichiometric ordering conditions of Mg and Nb on the B-site
cation positions. Studies were performed on specimens with La contents between 0 and 10
at.% and for x 0.35. Specimens were fabricated either by: i keeping the average Mg/Nb/Ti
ratio unchanged and while creating B-site vacancies La–PMN–PT, or ii changing the …
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