Mineralien / Minerals / Minerales > Allg. Diskussionen Mineralien / General discussions minerals

Kristalizing processes and synthetic minerals

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Krizu:
Hello,

one in my oppinion good german book is:

Kristallzüchtung

Klaus-Thomas Wilke, Joachim Bohm

Gebundene Ausgabe - 1088 Seiten - Deutsch (Harri)
Erscheinungsdatum: 1988
Auflage: 2., völlig neubearb. Auflage
ISBN: 3871449717

Three very common authors are Wilke, Bautsch and Bohm.

A quite interessting side is
http://www.gks.fr.bw.schule.de/Chemie/chemie.htm

But your text does not help very much:
- water based solution?
- high temperature solution growth or Flux growth
- growth of elements (beginning with gallium at 30°C ending by osmium more than 3000°C)
- Kind of heating
- kind of temperature control.

Main techniques are
- floating zone (Pfann, early 50)
- Nacken and Kyropoulos (early 30)
- James T. Czochrakly (early 1900)
- Verneuil (1890)
- TSSG (Top seed solution growth)
- hydrothermal growth
- sol-gel processes
- Stockbarger and Bridgemann

and some thousand other derivations like
- skull melting
- magnetic levitation
- crystal vibration techniques in TSSG

Heating:
- starting by inverse Czochalsky with cooling for ice crystals
- only constant roomtemperature
- resistant heaters
- radiofrequence heating
- electron beam
- arc melting

Do not forget
- gas transport techniques
- electrolytic growth
- gasreactions like CVD and MOCVD
- molekular beam epitaxie

Sorry, you asked for all sorts of techniques. Due to the fact, that you did not specify your and university equipement it is hard to tell details, or give valuable informations.

Once again: Can you give some more detailed informations?

br

Frank

Menno:
Wow, thats a lot of options. I didn't know that there were so many options, google didn't work that well. This will really help.
I just began my project (will lest till end of December) and I'm still orientating. I am especially interested in the technique's wich show the proces of kristalisation the best. Because I don't know if it is sure that I could work on an university ( I'm still on seconday school ), I would first would like to know the simple technique, which doesn't need any extremely rare chemicals or high-tech computers/machines. I hope I now gave you enough information! ( ow and many thx for all the information, this will take some time sorting out)

Greetings, Menno

Menno:
lol, sorry for al the grammatical and spelling mistakes, I typed it to fast!

Krizu:

--- Zitat von: Krizu am 20 May 05, 12:39 ---- water based solution?
- growth of elements (beginning with gallium at 30°C ending by osmium more than 3000°C)
- floating zone (Pfann, early 50)
- Nacken and Kyropoulos (early 30)
- James T. Czochrakly (early 1900)
- sol-gel processes
- Stockbarger and Bridgemann
- crystal vibration techniques in TSSG
- only constant roomtemperature
- resistant heaters

--- Ende Zitat ---

Ok, minimizing  ;)
quite easy is Nacken-Kyropulous with pure materials eg some organics.
Czochralsky is more difficult in regulation and equipement. But you see a crystal growing above the melt!

Main aspekt ist the growth control. Any idea? e.q. lab. balance and AD computer card or other measurement equipement? Or more like a hobbiest?

But this board is normally used by mineral serachers. Crystal growth is not really desired. Perhaps it is a better idea to contact me by pm or pn.

BR

Frank

MEHo:
I think I'll first will keep on working like a hobbiest. And maybe later ill try to do some proffesional work. But do you have MSN? That would be much easier. My MSN is the same as my email.

                                                                         Greetings, Menno ( or MeHo, just what you like)

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