Sodium niobate NaNbO3 is the parent compound of a number of technologically important dielectric materials. For example potassium substitution yields a promising piezoelectric. NaNbO3 is made at high temperatures by reaction of Na₂O and Nb2O5. The high temperature phase possesses an ideal perovskite structure, while at lower temperatures a number of distorted perovskite polymorphs are observed. (a) With the aid of suitable sketches describe in detail the solid state reaction of Na₂O and Nb₂O5 to form NaNbO3.
Sodium niobate NaNbO3 is the parent compound of a number of technologically important dielectric materials. For example potassium substitution yields a promising piezoelectric. NaNbO3 is made at high temperatures by reaction of Na₂O and Nb2O5. The high temperature phase possesses an ideal perovskite structure, while at lower temperatures a number of distorted perovskite polymorphs are observed. (a) With the aid of suitable sketches describe in detail the solid state reaction of Na₂O and Nb₂O5 to form NaNbO3.
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Transcribed Image Text:Sodium niobate NaNbO3 is the parent compound of a number of technologically important
dielectric materials. For example potassium substitution yields a promising piezoelectric.
NaNbO3 is made at high temperatures by reaction of Na₂O and Nb₂O5. The high temperature
phase possesses an ideal perovskite structure, while at lower temperatures a number of distorted
perovskite polymorphs are observed.
(a) With the aid of suitable sketches describe in detail the solid state reaction of Na₂O and
Nb₂O5 to form NaNbO3.
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