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Investigations of nano-crystalline Sr0.5Ba0.5Nb2O6 and Bulk Ceramics Synthesized by a Polymerization Method Using PEG400
2018
Social Science Research Network
Nano-crystalline Sr 0.5 Ba 0.5 Nb 2 O 6 was synthesized by a one-pot method using PEG400 and citric acid. Calcination of the (Sr,Ba,Nb)-gel at 600 °C leads to Sr 0.5 Ba 0.5 Nb 2 O 6 with a crystallite size of 24(2) nm and a specific surface area of 38.5(10) m 2 g 1 . Sintering up to 1325 °C leads to ceramics with globular or irregular-shaped grains and average grain sizes between 1.3 and 2.4 µm, whereas higher temperatures lead to a rod-like microstructure. The indirect allowed optical band
doi:10.2139/ssrn.3410773
fatcat:6ffjxkmrvjfg3eia663eitw234