It is true that you can grow extraordinarily well ordered crystals in
microgravity and, at least in many cases, much larger crystals. But,
as a practical mater, the crystals need to be cryocooled for data
collection to reduce radiation damage. Cryocooling increases the
disorder (mosaic spread) to such an extent as to obliterate the
advantage of microgravity growth. This applies even when comparing
crystals of the same size. For a reference see: Acta D59
2169-2182 (2003) Vahedi-Faridi et al.
The large highly ordered crystals from microgravity might be of great
value for neutron work where cryocooling is not required but that
would be a small corner of a niche market.
HTH
Henry Bellamy
Associate Professor - Research
Center for Advanced Microstructures and Devices
Louisiana State University
6980 Jefferson Hwy.
Baton Rouge LA 70806
225-578-9342 (voice)
225-578-6954 (fax)
hbell...@lsu.edu