Glass-ceramic-ferrite composition and electronic component

A glass-ceramic-ferrite composition containing:

• glass;
• a ceramic filler;
• and
• Ni—Zn—Cu ferrite, the glass-ceramic-ferrite composition having a peak corresponding to the (511) plane of a magnetite phase in an X-ray diffraction pattern determined using a Cu Kα radiation, the full width at half maximum of the peak being about 0.38° to 0.56°,
• wherein the glass is borosilicate glass containing R, where R is at least one selected from the group consisting of Li, Na, and K, and, in some cases, Al and contains about 0.5% by weight or more of R in terms of R2O, about 2.6% by weight or less of Al, about 3.1% by weight or more of B, and about 39.7% by weight or less of Si on the basis of the weight of the glass;
• the Ni—Zn—Cu ferrite accounts for about 58% to 64% by weight of the glass-ceramic-ferrite composition;
• the ceramic filler contains quartz and, in some cases, forsterite;
• the quartz accounts for about 4% to 13% by weight of the glass-ceramic-ferrite composition;
• and the forsterite accounts for about 6% by weight or less of the glass-ceramic-ferrite composition.

A method for producing a glass-ceramic-ferrite composition having a peak corresponding to the (511) plane of a magnetite phase in an X-ray diffraction pattern determined using a Cu Kα radiation, the full width at half maximum of the peak being about 0.38° to 0.56°, the method comprising:

• preparing a mixture containing glass, a ceramic filler, and Ni—Zn—Cu ferrite;
• and
• firing the mixture to obtain the glass-ceramic-ferrite composition,
• wherein the glass contains about 0.5% by weight or more of R2O, where R is at least one selected from the group consisting of Li, Na, and K;
• about 5.0% by weight or less of Al2O3;
• about 10.0% by weight or more of B2O3;
• and about 85.0% by weight or less of SiO2 on the basis of the weight of the glass, the Ni—Zn—Cu ferrite accounts for about 58% to 64% by weight of the mixture, the ceramic filler contains quartz and, in some cases, forsterite, the quartz accounts for about 4% to 13% by weight of the mixture, and the forsterite accounts for about 6% by weight or less of the mixture.

A method for manufacturing an electronic component which includes an element body containing a glass-ceramic-ferrite composition and an inner conductor placed in the element body and which has a peak corresponding to the (511) plane of a magnetite phase in an X-ray diffraction pattern determined using a Cu Kα radiation, the full width at half maximum of the peak being about 0.38° to 0.56°, the method comprising:

• preparing a mixture containing glass, a ceramic filler, and Ni—Zn—Cu ferrite;
• forming the mixture into sheets;
• forming a conductive pattern on the sheets using a conductive paste;
• stacking the sheets provided with the conductive pattern to form a multilayer body;
• and
• firing the multilayer body to obtain the electronic component, which includes the element body containing the glass-ceramic-ferrite composition and the inner conductor placed in the element body,
• wherein the glass contains about 0.5% by weight or more of R2O, where R is at least one selected from the group consisting of Li, Na, and K;
• about 5.0% by weight or less of Al2O3;
• about 10.0% by weight or more of B2O3;
• and about 85.0% by weight or less of SiO2 on the basis of the weight of the glass, the Ni—Zn—Cu ferrite accounts for about 58% to 64% by weight of the mixture, the ceramic filler contains quartz and, in some cases, forsterite, the quartz accounts for about 4% to 13% by weight of the mixture, and the forsterite accounts for about 6% by weight or less of the mixture.