СИНТЕЗ ТА ДОСЛІДЖЕННЯ ТВЕРДИХ РОЗЧИНІВ ТИТАНАТУ–СТАНАТУ БАРІЮ

• Datum: 2019
• Hauptverfasser: V’yunov, Oleg, Kovalenko, Leonid, Belous, Anatolii
• Format: Artikel
• Sprache: English
• Veröffentlicht: V.I.Vernadsky Institute of General and Inorganic Chemistry 2019
• Online Zugang: https://ucj.org.ua/index.php/journal/article/view/105
• Назва журналу: Ukrainian Chemistry Journal

Solid  solutions  of barium  titanate-stannate,  Ba(Ti,Sn)O3  have been investigated.  The  sequence  of phase  transformations  during  the synthesis  by solid  state  reactions  technique  has  been  determined,  crystallographic  and  microscopic  examinations  of polycrystalline  ceramics  based  on Ba(Ti,Sn)O3  solid solutions  have been  carried  out.  The  laws  governing  the change  in crystallographic  parameters  and the average  grain  size  as a function  of tin  content  have  been  shown.  Electrophysical  investigations  of the  obtained ceramics  have been carried out.  It has  been  found that  the dielectric  pa-rameters  (e and tgd)  of Ba(Ti,Sn)O3-based  ceramics  can  be improved  and  their  sintering  temperature  can  be reduced  by the addition  of  0.5 wt.% manganese  oxide(IV)  and 2 wt. % of  low-melting  glass-forming  admixture  AST (Al2O3–SiO2–TiO2).  It  has been  shown  that  the  obtained  materials  have  promise  in creating  ceramic  capacitors  based  on  them.