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Scientists succeed in growing dolomite in the lab
21–30 of 43 posts
Re: Scientists succeed in growing dolomite in the lab
#22Re: Scientists succeed in growing dolomite in the lab
#23"the tough, black mineral that won't cop out when there's heat all about"
-Prof. H. Farnsworth
Re: Scientists succeed in growing dolomite in the lab
#24"A dollar might go further in a Dolamite account... " - Jingle for the genx Aussies
Geez, that's going back a ways.
Re: Scientists succeed in growing dolomite in the lab
#25Really glad to see this work and result. My PhD dissertation 25 years ago (pub cited in group's Science paper) focused on laboratory synthesis of dolomite at lower temperatures (less than hydrothermal), but since then focused on virtual (kinetic Monte Carlo simulations) experiments as a means of understanding crystal growth. Really happy to see this fundamental progress.
Re: Scientists succeed in growing dolomite in the lab
#26This is an interesting result. It makes me wonder if you could grow a silicon ingot in this way. If so it would cut the cost of silicon solar cells significantly (a big chunk of their cost is the cost of the ingot, the ingot cost is a function of time to produce, producing them quickly would get more ingots per unit time from a given reactor). Another crystal structure that would be useful would be sapphire for thing…
> This is an interesting result. It makes me wonder if you could grow a silicon ingot in this way. No really. The way we grow silicon crystals is already very efficient and would not be improved by this sort of thing. We grow them by pulling a seed (in carefully controlled conditions, with a bit of twisting and other tweaks, but still), adding dissolutions steps would waste a lot of time. Besides, the defects they ge…
additional dissolution steps could definitely improve purity; i mean that's basically how zone melting does it
Re: Scientists succeed in growing dolomite in the lab
#27For those people, who also wondered what dolomite exactly was, beside a mountain range: https://en.m.wikipedia.org/wiki/Dolomite_(mineral)
It's amazing they failed to have a picture of either the sample or the mineral in the article.
Re: Scientists succeed in growing dolomite in the lab
#28That is very nicely explained, easy to understand and informative.
Re: Scientists succeed in growing dolomite in the lab
#29Earlier quoted context omitted.
> This is an interesting result. It makes me wonder if you could grow a silicon ingot in this way. No really. The way we grow silicon crystals is already very efficient and would not be improved by this sort of thing. We grow them by pulling a seed (in carefully controlled conditions, with a bit of twisting and other tweaks, but still), adding dissolutions steps would waste a lot of time. Besides, the defects they ge…
additional dissolution steps could definitely improve purity; i mean that's basically how zone melting does it
That’s melting, not dissolution. They came nowhere near the melting point of dolomite in the paper, AFAICT.
Re: Scientists succeed in growing dolomite in the lab
#30I'm 60% dolomite