21st line 2; 199026 St. Petersburg, Russia
Phone/Fax: +7 (812) 328-8640 email: rmo@minsoc.ru
founded in 1817

Crystallogenesis and Mineralogy
Saint Petersburg, Russia
30 September-4 October 2007
Русский Site map
Conferences & Meetings 2nd International Conference "Crystallogenesis and Mineralogy"
print print version

Locations of visitors to this page
MinSoc Info
Conferences & Meetings
Zapiski RMO (Journal)
re-registered: 931
yesterday: 158
users: 2752
active: 2324
organizations: 756
departments: 435
useful links: 66
announced: 31
registration open: 1
total: 2007
PDF: 1986
issues: 547
articles: 9606
PDF of abstracts: 2156
fulltext articles: 3830
records: 43
fulltext PDF: 9
| search |
Diamonds and onions - carbon at the nanoscale

RMS-DPI code:  2007-1-173-1
Scientific session:  Session 6. Nanophases and nanoprocesses
Author listing:  Krueger A.
Principal author:  Anke Krueger
Language:  English
Abstract - Summary 
(short description):
Diamond has always been a material that attracted a lot of interest among researchers ofvarious fields. Not only its valuable properties like the hardness, inertness and electronic behaviour but also its structural properties such as surface structure and lattice defects are of great interest. The existence of nanoscale diamond in the interstellar dust was also discussed.[1]
Especially at the nanoscale diamond exhibits a variety of exceptional features. Among them, the easy reconstruction of the particle surface and the transformation into carbon onions play an important role. In a size range up to ~10 nm the thermodynamic stability of sp2 and sp3 carbon shows only slight differences and the transformation of diamond into carbon onions can be achieved by electron irradiation or thermal treatment. Here we will discuss some mechanistic issues of this transformation and the properties of the resulting materials.
On the other hand, the production of nanoscale diamond itself represents an interesting task. Production methods include the milling of larger diamond crystals, the shock wave transformation of graphite as well as the production of so-called detonation diamond from explosives. This technique was developed in Russia in the 1960s.[2] We are working on the deagglomeration and solubilisation of the primary nanocrystalline diamond particles. Here we discuss mechanical and chemical methods of deagglomeration, namely the beads milling,[2] the beads assisted sonic disintegration[2] and the reductive hydroboration.[3] Altogether, nanoscale diamond, carbon onions and other nanoscale carbons are important for the discussion of the production of larger scale carbon materials with well-defined properties and the understanding of their crystallographic properties.
RMS-DPI code:  2007-1-173-1
Proceeedings volume 
in the RMS catalogue:
Crystallogenesis and Mineralogy
Pages:  415-416
File of proceedings 
 332 K
Status:  printed
Revised:  06/06/2007
Accepted:  07/06/2007
Published on-line:  05/01/2008
Permanent address of publication:  http://www.minsoc.ru/2007-1-173-1/
Contact author(s):  Krueger, Anke

Error. Page cannot be displayed. Please contact your service provider for more details. (19)

site administrator: adminminsoc.ru (Docent Morozov, Mikhail)
registration | forgot password?
about registration
RMS distribution list service
NEW !!! RMS 200th Anniversary Meeting 2017
RMS for You:  PDF (37k)
RMS Directory
List of organizations

"Zapiski RMO" online
New Books

RMS Annual Session and Fedorov Session 2012
General Meeting and Fedorov Session 2010
Minerals as Advanced Materials II
Annual Session 2009
Annual Session 2008
Fedorov Session 2008
Annual Session 2007
Annual Session 2006
Fedorov Session 2006

ankara escort
tuzla escort
seks filmi izle