"comments from some who say that there are alternative materials that are being developed"
Always! And the development will go a lot faster if the cost of neos substantially increases.
The guys who developed alnico maybe thought there would never be anything better.
Wiki- "The term "rare earth" is often misunderstood by the chemical layman; these metals are not particularly rare or precious, and as of 2007 rare earth magnets give the best cost/field ratios of any permanent magnet"
COST being the key word as I see it.
China has half the neo deposits. Not all.
It will be more expensive to get neo because other places have rules about safety, the environment, and higher labor cost.
"it will quit exporting strategic elements". I expect they mean in a raw form?
So what. We pay more for our neos in a windmills and Prius?
The ipod ear buds get a bit larger. The kids with 10,000W neo speakers have to use ceramic.
If they stop exporting neo all together, that means no more computer hard drives.
That would be a serious issue!
Not to mention who will make the HDs if China stops exporting products containing neo?
Some neo uses will decline rapidly anyway.
The new terabyte HDs have a tiny amount of neo compared to the old 50 meg HDs.
Solid state HDs are here now. The days of spinning plattens are numbered, much like IBM punch cards.
G-