P2-0084 — Annual report 2013
1.
Method of manufacturing fully dense Nd-fe-B magnets with enhanced coercivity and gradient microstructure

Highly coercive permanent Nd-Fe-B-based magnets were successfully developed from commercially available MQU-F rapidly quenched ribbons with optimized composition by wet coating with DyF3 in isopropanol and subsequent spark plasma sintering and heat-treatment. Highest HCi enhancement was obtained at 2.2 wt.% Dy-fraction, i.e. from 1580 to 2025 kA/m, which is 25 % improvement. When more than 3 wt.% of Dy was added, the coercivity enhancement started to decrease, whereas at 4.8 wt.% the coercivity of as-sintered magnet was lower than it was for non-coated one and it was further decreasing with annealing time.

F.09 Development of a new technological process or technology

COBISS.SI-ID: 27437351
2.
Magnetic materials have always held a strong attraction for Spomenka Kobe

During the inetrnational conference TMS 2013 (4500 participants) I was inteviewed by the journalist from the offcial journal "The Minerals, Metals & Materials Society. The chapter in a journal was dedicated to successful female scentist from the whole international comunity of Material Science.

E.03 Other

COBISS.SI-ID: 27007783
3.
Europe try to find new magnets

Due to the winning European project ROMEO, 4 mio EUR, and the role of co-ordinator, I had a TV interview in the central news. The project has 13 partners 7 of them are the most successful academic groups in the field and 5 bigest European industral partners.

B.06 Other

COBISS.SI-ID: 27115815
4.
Project RRP2

In collaboration with company VARSI we continued development of special varistors for overvoltage protection of renewable energy systems (solar panels and wind turbine generators). The result is new types of varistors with high stability under dc field for operation under harsh climate conditions (temperature, humidity).

F.13 Development of new production methods and tools or processes

COBISS.SI-ID: 26718247
5.
Structure of the chondrules and the chemical composition of olivine in meteorite Jesenice

Up to date three meteorites have been found on the territory of Slovenia, one stony and two iron types. The highly conserved stone meteorite named after the location Jezersko has recently joined to the collection of Slovenian meteorites. The detailed studies of the meteorite Jezersko, which were performed jointly at the Jozef Stefan Institute, Geological Survey of Slovenia, Faculty of Natural Sciences and the Museum for Natural History of Slovenia offers us an unique opportunity for in-depth understanding of the origin and evolution of our solar system in the last ~ 4.6 billion years. Meteorite Jezersko was registered into the database of all known meteorites in Lunar and Planetary Institute (Meteoritical Bulletin Database).

F.02 Acquisition of new scientific knowledge

COBISS.SI-ID: 2184277