Spark plasma sintering densifies SmFeAsO0.80F0.20 to 97-98% density but leaves impurity phases unchanged, so Tc and Jc stay near those of conventional and high-pressure synthesis.
Iro n-based layered superconductor La[O 1-xFx]FeAs (x = 0.05-0.12) with Tc = 26 K
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Effect of spark plasma sintering on the superconducting properties of Sm-based oxypnictide
Spark plasma sintering densifies SmFeAsO0.80F0.20 to 97-98% density but leaves impurity phases unchanged, so Tc and Jc stay near those of conventional and high-pressure synthesis.