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Abstract
Abstract This paper reported the ractions in preparing ultrafine KTN powders by Sol—Gel method, and discovered that. In the heat treatment process, Gel not only occured the carbonized, oxidized reactions of ethyoxy and the carbonates formation reactions, but also occured the two intermediate phases formation reactions, the formation reaction of KTN phase in one step, and the reaction that the two intermdiate phases reacted with each other to form KTN phase.