Chapter Four 2011-2016 Global and Chinese Market of Dysprosium
Canadian deposits contain the heavy rare earth elements dysprosium
The best fine-grained magnets completely free of dysprosium
may belong to Kazuhiro Hono, a researcher at the National Institute for Materials Science in Tsukuba, Japan, and colleagues.
That applies particularly to the heavier rare earths dysprosium
, terbium, and yttrium, whose ores are less common, Bauer says.
Adding the terbium or dysprosium
gives it a higher coercivity, which allows the magnet to withstand higher temperatures before losing magnetism.
Miniaturised multi-gigabyte portable disk drives and DVD drives wouldn't exist without magnets made from alloys of rare earths such as neodymium, samarium, praseodymium, dysprosium
was also identified as a constituent in kainosite-(Y) (see below).
Readers will also recall that I dwelt on the discovery of dysprosium
on Alaska's Prince of Wales Island in my April 2014 article "U.
Steve Constantinides, of Arnold Magnetics in the USA, presented a comprehensive picture on the attributes of rare earth magnets in industrial applications, the impact of dysprosium
supply shortages on the availability of heat-resistant rare earth magnets, and several material science initiatives underway to reduce dysprosium
usage in these magnets through grain boundary engineering and possible substitution of other rare earth elements.
The aim of the drilling programme is to identify a high grade, Dysprosium
resource that can be put into production much quicker and at a substantially lower capital cost than the company's Foxtrot Project resource, to test the earlier prospecting and surface sampling, which yielded Dysprosium
values of 621 - 2,741 ppm, and to demonstrate to all stakeholders the potential of the Port Hope Simpson REE District for multiple REE deposits.
Those materials are dysprosium
, terbium, europium, neodymium, and yttrium.
The ionic properties of that element, as well as samarium, praseodymium and dysprosium
, make for some of the strongest known magnets, including some that function at temperatures high enough to remain viable in harsher settings like automobile engines.