Microwave calcination and sintering of barium strontium titanate

F. Selmi, F. Guerin, X. D. Yu, V. K. Varadan, V. V. Varadan, Sridhar Komarneni

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The calcination and sintering behavior of barium strontium titanate was investigated using microwave power absorption. With microwave power, BaCO3, SrCO3 and TiO2 powders were calcined at 1100°C for 45 min, whereas conventional calcination requires typically more than 5 h at 1150°C. Pressed samples of microwave calcined Ba0.65Sr0.35TiO3 were sintered in 30 min at 1350°C using a microwave cavity. The permittivity and loss tangent of the sintered samples were also measured. It is shown that microwave calcination and sintering lead to an improvement in the dielectric properties.

Original languageEnglish (US)
Pages (from-to)424-428
Number of pages5
JournalMaterials Letters
Volume12
Issue number6
DOIs
StatePublished - Jan 1 1992

Fingerprint

Barium strontium titanate
strontium
Calcination
roasting
barium
sintering
Sintering
Microwaves
microwaves
tangents
Dielectric properties
Powders
dielectric properties
Permittivity
permittivity
cavities

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Selmi, F. ; Guerin, F. ; Yu, X. D. ; Varadan, V. K. ; Varadan, V. V. ; Komarneni, Sridhar. / Microwave calcination and sintering of barium strontium titanate. In: Materials Letters. 1992 ; Vol. 12, No. 6. pp. 424-428.
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abstract = "The calcination and sintering behavior of barium strontium titanate was investigated using microwave power absorption. With microwave power, BaCO3, SrCO3 and TiO2 powders were calcined at 1100°C for 45 min, whereas conventional calcination requires typically more than 5 h at 1150°C. Pressed samples of microwave calcined Ba0.65Sr0.35TiO3 were sintered in 30 min at 1350°C using a microwave cavity. The permittivity and loss tangent of the sintered samples were also measured. It is shown that microwave calcination and sintering lead to an improvement in the dielectric properties.",
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Selmi, F, Guerin, F, Yu, XD, Varadan, VK, Varadan, VV & Komarneni, S 1992, 'Microwave calcination and sintering of barium strontium titanate', Materials Letters, vol. 12, no. 6, pp. 424-428. https://doi.org/10.1016/0167-577X(92)90206-Y

Microwave calcination and sintering of barium strontium titanate. / Selmi, F.; Guerin, F.; Yu, X. D.; Varadan, V. K.; Varadan, V. V.; Komarneni, Sridhar.

In: Materials Letters, Vol. 12, No. 6, 01.01.1992, p. 424-428.

Research output: Contribution to journalArticle

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