Plutenko T. Synthesis, structure and properties of lead-free ferroelectric semiconductors based on (1-x)BaTiO3-xM0.5Bi0.5TiO3 (M = Li, Na, K)

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0414U001674

Thesis Registration Form

0414U001674.pdf

Applicant for

Plutenko Tetiana Oleksandrivna

Specialization

02.00.01 - Неорганічна хімія

Date of defense

10-04-2014

Specialized Academic Board

Д 26.218.01

V.I. Vernadskii Institute of General & Inorganic Chemistry NAS of Ukraine

Essay

It was determined that increase of M0.5Bi0.5TiO3 content in (1-x)BaTiO3-xM0.5Bi0.5TiO3 (M = Na, K) solid solutions increases the Curie temperature. It was found that grain boundary and outlayer region make the main contribution to the PTCR effect in solid solutions (1-x)BaTiO3-xM0.5Bi0.5TiO3 (M = Na, K). It was shown that the use of pre-synthesized by oxalate method barium titanate in preparation of (1-x)BaTiO3-xM0.5Bi0.5TiO3 (M = Na,K) solid solutions enhances the minimum value of resistance, increases the ceramic's grain size and reduces the sintering temperature of ceramics compared with solid state reaction technique.

Thesis supervisor

Bilous Anatolii Grygorovych

Official opponents

Неділько Сергій Андрійович
Харламов Олексій Іванович

Files

aref.doc

dis.doc

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