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Home Moldova Technologies Superconducting MgB2 Films For Technical Applications

Superconducting MgB2 Films For Technical Applications

Description

Elaborated advanced method for production of high-quality, smooth superconducting MgB2 films with the highest superconducting properties. Method is based on DC-magnetron sputtering of the B-precursor film and post annealing in Mg atmosphere in a specially designed reusable Nb container placed in evacuated quarts reactor.

MgB2 films are prepared using two-step method including dc-magnetron sputtering of B- precursor films from B target on (100) MgO or on sapphire substrates with the following annealing ex-situ at 850°C in Mg vapour atmosphere in a specially designed self-sealed reusable Nb reactor.

Innovative Aspect and Main Advantages

Produced MgB2 films with reliable reproducibility and long term stable parameters opens perspectives for technical applications of MgB2 films in microelectronics, especially for high-frequency superconducting devices.

Areas of Application

Field of application serves power superconducting electronics - powerful magnets, cables for transmission of current, power generators, powerful electric motors.

First.step: DC-magnetron-sputtering of B-precursor in argon atmosphere.


Second step: annealing in Mg atmosphere


Reactor for annealing of precursor MgB-films.
1 - Vacuumed quartz tube.
2 - Nb container with cone shape input.
3 - Nb plunger.
4 - Mg powder.
5 – Sample holder with precursor.

Stage of Development

Method was presented at the Brussel Exposition -2009, mentioned by medal and diploma, is covered by two patents:

  1. Method of synthesis of MgB2. V. Zdravkov, A. Sidorenko, Th. Koch, Th. Schimmel, patent RM Nr.3511, from 17.12.2007.
  2. Device for synthesis of magnesium diboride, V. Zdravkov, A. Sidorenko, Th. Koch Th. Schimmel, patent of RM Nr.3512, from 19.12.2007.

Contact Details

D.Ghitu Institute of Electronic Engineering and Nanotechnologies
Address: Academiei 3/3 str., Chisinau, Republic of Moldova
Tel. (373)22-727092
Fax. (373)22-727088
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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