Detail publikace

Phase transformation of cold-sintered doped barium titanate ceramics during the post-annealing process

SIDDIQUI, M. VALÁŠEK, D. BAI, Y. SALAMON, D.

Originální název

Phase transformation of cold-sintered doped barium titanate ceramics during the post-annealing process

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The cold sintering technique has been developed to densify electroceramics at significantly low temperatures to tackle high energy consumption as well as compatibility of electroceramic components in modern electronics. However, obstacles still exist since, to obtain desired electrical properties, a post-annealing procedure at elevated temperatures must follow to trigger compulsory phase formation and/or grain growth. This work investigates the BaTiO3 and (Ba,Sr)TiO3 ceramics via both the cold and conventional sintering routes, and then compares their phase transformation behaviors during the post-annealing process. Results suggest that, given similar particle and grain sizes, the cold-sintered ceramics tend to retain a substantial part of the pristine tetragonal phase at annealing temperatures of <800 C-degrees, while the cubic phase tends to dominate when annealed at >800 C-degrees. This indicates a process-stimulated phase transformation that may guide or limit the selection of annealing temper-ature in practice.

Klíčová slova

Cold sintering process; Phase transition; Annealing; Electroceramic; Doping; Low temperature densification

Autoři

SIDDIQUI, M.; VALÁŠEK, D.; BAI, Y.; SALAMON, D.

Vydáno

1. 9. 2023

Nakladatel

ELSEVIER

Místo

AMSTERDAM

ISSN

2666-5395

Periodikum

Open Ceramics

Ročník

15

Číslo

1

Stát

Nizozemsko

Strany počet

7

URL

https://www.sciencedirect.com/science/article/pii/S2666539523000731?via%3Dihub

BibTex

@article{BUT187397,
  author="Maliha {Siddiqui} and Daniel {Valášek} and Yang {Bai} and David {Salamon}",
  title="Phase transformation of cold-sintered doped barium titanate ceramics during the post-annealing process",
  journal="Open Ceramics",
  year="2023",
  volume="15",
  number="1",
  pages="7",
  doi="10.1016/j.oceram.2023.100401",
  issn="2666-5395",
  url="https://www.sciencedirect.com/science/article/pii/S2666539523000731?via%3Dihub"
}