16 Dec 2019

Yttrium - here's that village Ytterby again

From Elemental, 8:00 am on 16 December 2019

Here we go again - yet another element named after the Swedish village of Ytterby with a suitably tortuous extraction process, although surprisingly it is actually not a lanthanoid; it is a transition metal.

It is used in camping gas mantles along with thorium, is added to cast iron to make it more ductile, and appears in alloys used in cutting tools, bearings and jet engines.

When used with ytterbium, barium, copper and oxygen, it creates a high-temperature superconductor that operates at much warmer temperatures than most superconductors.

Kiwi scientists Jeff Tallon and Bob Buckley are at the forefront of high temperature superconductor research, says Professor Allan Blackman from the Auckland University of Technology, in episode 94 of Elemental.

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Photo: RNZ

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The Elemental podcast is celebrating 150 years since the periodic table was first published by Russian chemist Dmitri Mendeleev.

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Professor Allan Blackman is at Auckland University of Technology.