The effects of sintering additives on sinterability and microwave properities of yttrium iron garnet

• Autorzy: Kim W. T , Song Y. Y. , Yu S. C. , Park J. R. , Lee S. S.
• Konferencja: Korean-Polish Joint Seminar on Physical Properties of Magnetic Materials (3 ; 26-28.08.1997 ; Kraków, Poland)
• Języki publikacji: EN

Abstrakty

EN

The effects of small addition of either Bi₂O₃ or a mixture of CuO + B₂O₃ on sinterability and microwave properties of yttrium iron garnet (YIG), prepared using a conventional ceramic method, have been studied by means of scanning electron microscopy, X-ray diffractometry, magnetometry and ferromagnetic resonance experiments. Sintering temperature for YIG could be reduced by about 50 K or 150 K by adding small amount of Bi₂O₃ or a mixture of B₂O₃ + CuO. Saturation magnetization and Curie temperature of YIG samples were almost independent of the addition of sintering additives. YIG specimens sintered at 1623 K with 1.5 wt% Bi₂O₃ and YIG sintered at 1523 K with 1.0 wt% of B₂O₃ + CuO mixture showed ferromagnetic resonance linewidth DH of 62 Oe and 58 Oe, respectively, compared with 65 Oe in pure YIG specimen sinterded at 1673 K for 2 hrs.

• Wydawca: Institute of Electron Technology
• Czasopismo: Electron Technology
• Rocznik: 1998
• Tom: Vol. 31, No. 1
• Strony: 121--128
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Kim W. T

autor

Song Y. Y.

autor

Yu S. C.

autor

Park J. R.

autor

Lee S. S.

• Departament of Physics, Chongju University, Chongju, 360-746, Korea