Scientific confectioners in June in a spirit of diamonds

24. 06. 2015

Ing. Marián Marton, PhD., na prednáške v CVTI SRFew people know that diamonds are produced in Slovakia for 15 years. To inform about this topic general public, Ing. Marián Marton, PhD. from the Faculty of Electrical Engineering and Information Technology at SUT, who is devoted to this topic, accepted an invitation to Bratislava Scientific confectioners on 23.6. 2015 at 9.00 am.

What is actually a diamond

The word diamond has its origin in the Greek "adamas" - insuperable. Diamond is the hardest material in the world. However is his occurrence a unique, it consists of one of the most often represented element in nature - carbon. The carbon atoms are connected by short hardback in a cubic crystal lattice. Crystallization in nature occurs in extreme conditions.

Formation of diamond in nature requires specific conditions, the presence of carbon, 4.5 - 6 GPa pressure and temperature 900-1300°C. For demanding conditions, an incidence of natural diamond is very rare, there is therefore a need for diamond production.

In terms of physical properties is the diamond unique material with great perspective for the use, not only for jewellers, but also for scientists. In Scientific confectioners we learned in detail of what it consists of, how it occurs in nature and how it can be produced.

Of which material is a diamond consist of?

Few of us are aware that diamond and graphite in pencil have something in common. It vividly shows us a view of the presentation no. 1 and 2.

Uhlíkové materiály, prezentácia Ing. Mariána Martoňa, PhD.

Uhlíkové materiály, prezentácia Ing. Mariána Martoňa, PhD.

Simply said, we can say that the diamond is a form of carbon. The density of D = 1.6 times the density of graphite. By pressing of graphite is formed diamond. The first successful attempts of synthetic diamond production started already in 1953.

Currently, the manufacture of diamond is by the so-called HPHT method, i. e. as in nature - under high pressure and temperature or the production of the diamond is by CVD method, using low pressure and high temperature.

diskutujúciWhy is the diamond interesting for scientists?

It's thanks to its characteristics and excellent practical use. Thanks to its mechanical properties is used in surgery, for cutting and grinding wheels, in drills and thanks to its optical and acoustic properties it used in laser optics and in stereophonic of sound. Thanks to its electrical and thermal properties is used in electrochemistry for water purification and decomposition of micropollutants.

Diamond is a material with many unique features, so it is interesting for scientists and industrial use. It can be used in a wide range of applications. Additionally, other options of using are intensively studied. According to the lecturer, manufacturing technologies are already well controlled in the world, and even in Slovakia. It has great potential particularly in electrochemistry in analyzing and eliminating water pollution from drugs, irreducible residues of antibiotics and hormonal preparations (micropollutants).

An author of the lectures approached us the history of how and why it made by scientists at the Slovak University of Technology. He also introduced us other carbon nanomaterials, explained more about the vacuum in its manufacture and we also discussed about nanotechnology. In the debate, students were interested in many things and we have learned that in Slovakia is the Faculty of Electrical Engineering and Information Technology at Slovak University of Technology, the only producer of diamonds and nanomaterials with diamond surface. We believe that the topic about diamonds was interesting and many students addressed.

Student activities did not remain unnoticed, and finally three most active lecture discussant were pressented with small tarts, as it is our custom during this event. Scientific confectioners in June was the last in this school year and a managing director of NCP S&T (which prepared the event) Mgr. Andrea Putalová wished to all students a beautiful holiday.

výhercovia v júnovej Bratislavskej vedeckej cukrárni v CVTI SR

Prepared by: Mgr. Mária Izakovičová

Photos: Ing. Alena Oravcová (SCSTI SR)

Source of photos in article: Presentation of author (Ing. Marián Marton, PhD.)

Photo gallery from event

Translated by: LŠ

Keywords:
Material Engineering, Nanotechnologies, colleges

Areas:
Technical Sciences

Scientific Patisserie: 15 years of manufacturing diamonds in Slovakia

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