Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Magnetic properties of Fe-Zr-N soft magnetic thin films

100%

Kim T. S. , Kim C. O. , Kim T. K.

Electron Technology

1998

tom Vol. 31, No. 1

101-101

Thin films of Fe-Zr-N were fabricated by r.f.-sputtering method. Their saturation magnetization and coercivity were studied as a function of annealing temperature and partial pressure of nitrogen gas. Also the effective permeability at high frequences and thermal stability were investigated fora series of samples. The films exhibit good magnetic softness in the range of composition Fe₇₂÷₇₈Zr₇₁÷₁₀N₁₅÷₁₈ which defines the limit between polycrystalline and amorphous structures. The films showing the best softness exhibit the saturation flux density 1.55 T and the effective permeability around 3000 at 1 MHz. These films show also good thermal stability (their permeability drops to 2500 when the sample is heated up as high as to 550°C). It seems that good magnetic softness of the films is due to the precitipations of Zr-N nanocrystals (their size 1÷1.5 nm) which restrain the growth of a-Fe grains (4÷5 nm).

The Effect of Additive Element on the Properties of Mechanically Alloyed Fe-Y2O3 Alloys

100%

Ahn J.-H. , Kim T. K. , Ahn J.

Archives of Metallurgy and Materials

2017

tom Vol. 62, iss. 2B

1043--1046

In the present work, we have examined the effect of Ti on the properties of Fe-Y2O3 alloys. The result showed that the addition of Ti was effective for improving mechanical properties. This is due to the reduction of oxides by Ti during mechanical alloying and hot-consolidation. In particular, iron oxides are effectively reduced by the addition of Ti. Compared to the pristine Fe-Y2O3 alloys, titanium-added alloys exhibited fine and uniform microstructures, resulting in at least 60% higher tensile strength.