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AssigneesNational Institute of Advanced Industrial Science and Technology, Tokyo Institute of Technology
InventorsKazumi Kato, Takeshi Miki, Kaori Nishizawa, Kazuyuki Suzuki, Desheng Fu, Hiroshi Ishiwara
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The present invention provides compositional buffers for electronic ceramics containing volatile elements, and a method for manufacturing and using the same. The surfaces of the fine crystal grains that make up an electronic ceramic such as a bismuth-based laminar compound or lead-based perovskite compound containing highly volatile cations such as bismuth or lead, or a thin film thereof, are covered compositional buffer composed of a silicate- or borate-based compound that readily forms an amorphous structure, and also provided is a method for manufacturing an electronic ceramic using the compositional buffer.
An electronic ceramic comprising a compositional buffer which surrounds the surfaces of fine crystal grains that make up the electronic ceramic containing a volatile element or thin film thereof in the form of a thin layer, characterized in that said compositional buffer has a function of maintaining the chemical composition of the electronic ceramic or a thin film thereof at its stoichiometric composition, and said compositional buffer is composed of a silicate- or borate-based compound that readily forms an amorphous structure.
Dependencies are inferred from the claim text.