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OwnerTakashi Hasegawa, Yasunari Nakamura +1inventors
InventorsTakashi Hasegawa, Yasunari Nakamura, Masami Yabuuchi
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A method for making a dielectric ceramic material powder containing a basic component powder including particles of a basic component for making a dielectric ceramic, a first additive component and a second additive component is provided. The first additive component has an effect of preventing the second additive component from forming a solid solution with the basic component powder. The method includes the steps of diffusing the first additive component into a surface region of each particle of the basic component powder, and adding the second additive component to the resulting basic component powder. After the dielectric ceramic material is sintered, each of the particles of the sintered compact can reliably have a core-shell structure that includes a core containing no second additive component and a shell containing diffused second additive component.
A method for making a dielectric ceramic material powder comprising a basic component powder comprising particles of a basic component for making a dielectric ceramic, a first additive component, and a second additive component, the first additive component having an effect of preventing the second additive component from forming a solid solution with the basic component powder, the method comprising the steps of:
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