Dy mountain, page-4

Or DD:

" Abstract:
This paper describes a new Dy grain boundary diffusion process for sintered Nd₂Fe₁₄B magnets for applications in EV traction machines. The new process results in a 75% reduction in Dy consumption normally required by conventional Nd₂Fe₁₄B magnets for the equivalent performance, thus quite diminishes the dependence on the high-cost and volatile supply of rare earth element. An interior permanent magnet machine (IPM) with 18 slots and 8 poles is also designed and built with the low-Dy content magnets for a small sized electric vehicle. With the help of the new magnets, the prototype machine has reached very high energy efficiency over a wide torque-speed range in the test, while the magnet material cost is significantly reduced ."

http://ieeexplore.ieee.org/document/7157107/

"75% reduction in Dy consumption normally required by conventional Nd₂Fe₁₄B magnets for the equivalent performance" as at May 2015 IEEE International Magnetics Conference.

Hardly surprising the bottom fell out of DyO pricing just a few months later:



And of course it has continued to fall for the 30 months since. With particle size & grain alignment now further progressing DyO deletion the driving force is now competition to development the most efficient NdFeB, every point of Dy eliminated not only reduces cost but enhances flux (strength) and therefore reduces mass.

Huge incentives to continued Dy deletion, the reason China has 4/5 years DyO piled up, it's rapidly moving to obsolescence, only a matter of time till values return to pre 2010 levels > $90kg.

Word is another round of SRB stock piling imminent, how many 100t of DyO will they add this time?

And NTU plans to sell them a dirty 52% con, all the way from the Tanami Desert?

Gotta be kidding, isn't remotely a business.