Št. zadetkov: 12
Izvirni znanstveni članek
Oznake:
sintranje;spark-plasma sintering;microstructure refinement;
Sintered Nd-Fe-B-type permanent magnets are normally manufactured using a conventional powder-metallurgy approach. The limitations of such high-temperature, pressureless sintering methods include restricted control over the microstructure due to grain growth and constraints on the magnet’s geometry. ...
Leto:
2024
Vir:
Institut Jožef Stefan (IJS)
Diplomsko delo
Oznake:
Slovenija;ekonomski razvoj;ekonomska rast;inovacije;znanje;znanost;konkurenčnost;institucije;podjetništvo;infrastruktura;
Vloga znanja in znanosti v gospodarskem razvoju
Leto:
2006
Vir:
Ekonomska fakulteta (UL EF)
Diplomsko delo
Oznake:
Optimizacija;metalurgija prahov;Nd-Fe-B;trajni magneti;sintranje v vakuumu;
Magneti pridobljenih iz elementov redkih zemelj postajajo vse bolj pomembni za vzdrževanje dandanašnjega stila življenja, saj se uporabljajo v napravah, ki za delovanje potrebujejo električne motorje. Predvsem v tistih, ki zahtevajo maksimalne zmogljivosti in energijske učinkovitosti. Med drugim so ...
Leto:
2023
Vir:
Naravoslovnotehniška fakulteta (UL NTF)
Magistrsko delo
Oznake:
magneti;Nd-Fe-B;reciklirani prahovi;Nd-Cu;sintranje v pulzirajočem električnem polju - SPS;
V magistrskem delu je predstavljen nov pristop k pripravi trajnih magnetov tipa Nd-Fe-B na osnovi recikliranih mikrokristaliničnih prahov z dodatkom zlitine Nd70Cu30 (at. %). Magneti so bili pripravljeni z uporabo alternativnega postopka sintranja s t. i. tehniko sintranja v pulzirajočem električnem ...
Leto:
2021
Vir:
Naravoslovnotehniška fakulteta (UL NTF)
Izvirni znanstveni članek
Oznake:
rapid sintering;finite-element modeling;
The green transition has spiked demand for high-performance sintered Nd-Fe-B permanent magnets, necessitating advanced powder consolidation technologies to enhance production efficiency. This study explores the rapid sintering methodology for an Nd-Fe-B powder using a radiation-assisted sintering ap ...
Leto:
2024
Vir:
Institut Jožef Stefan (IJS)
Izvirni znanstveni članek
Oznake:
razmagnetenje;mikrostruktura;thermal demagnetization;microstructure;
Nd-Fe-B-type permanent magnets, containing approximately 30% critical rare-earth elements by weight, are essential components in renewable energy systems (e.g., wind turbines, hydroelectric generators) and electric vehicles. They are also critical for consumer electronics and electric motors in prod ...
Leto:
2024
Vir:
Institut Jožef Stefan (IJS)
Izvirni znanstveni članek
Oznake:
razmagnetenje;magnetic scrap;thermal demagnetization;organic contamination;
Demagnetization is an essential step for the demounting and safe handling of end-of-life NdFeB. Thermal demagnetization in air is a straightforward option to demount adhesive-fixed or segmented magnets. However, this process is suspected to increase the uptake of contaminants like O, C and Zn from c ...
Leto:
2024
Vir:
Institut Jožef Stefan (IJS)
Izvirni znanstveni članek
Oznake:
mikro ogrevanje;vroče točke;mikrostrukture;
Micro-nonuniform heating in the field-assisted sintering (FAST) of electrically conductive powders has been a topic of discussion in the materials science community. Microstructural specifics, such as neck formation at low consolidation temperatures and density variations, have previously been ascri ...
Leto:
2024
Vir:
Institut Jožef Stefan (IJS)
Izvirni znanstveni članek
Oznake:
0,5Ba(Zr0,2Ti0,8)O3—0,5(Ba0,7Ca0,3)TiO3 tanke plasti;mikrostruktura;kristalna orientacija;elektromehanske lastnosti;Nd-Fe-B magneti;recikliranje;Nd-Cu evtektik;iskrovno plazemsko sintranje;inženirstvo mej zrn na ravni posameznega zrna;
The sustainable recycling and reprocessing of Nd-Fe-B magnets are essential for reducing critical-material dependency in next-generation permanent-magnet manufacturing. This study introduces a single-grain, grainboundary-engineering strategy that revitalizes RE2Fe14B grains recovered and extracted v ...
Leto:
2026
Vir:
Naravoslovnotehniška fakulteta (UL NTF)
Izvirni znanstveni članek
Oznake:
SrFe$_{12}$O$_{19}$-based filaments;magnetic particles;polymers;polyphenylene sulphide;3D printing;magnetic field;
We describe the fabrication of SrFe$_{12}$O$_{19}$-based filaments, using polyphenylene sulphide (PPS) as the binder for the magnetic particles, and the subsequent printing of this filament with a 3D printer. PPS is an ideal polymer for applications in harsh environments, making it applicable for th ...
Leto:
2023
Vir:
Fakulteta za strojništvo (UL FS)