公开(公告)号：KR1020110010182A

公开(公告)日：2011-02-01

申请号：KR1020090067607

申请日：2009-07-24

Applicant: 포항공과대학교 산학협력단

Inventor： 김규연 ,  백성기 ,  손종역 ,  윤송학

IPC: C01F11/02 ,  C01B13/14 ,  B82B3/00

CPC classification number: C07F19/00 ,  C01F11/02 ,  C01G23/006 ,  C01P2002/34 ,  C01P2004/64

Abstract: PURPOSE: A method for manufacturing oxide nanopowder with a perovskite structure is provided to obtain oxide nanopowder with narrow particle size distribution and minimized coherence between particles and to secure high permittivity and sintering temperature by controlling a composition of components. CONSTITUTION: A method for manufacturing oxide nanopowder with a perovskite structure comprises the steps of: injecting an aqueous solution as a starting raw material in a reaction container; raising the inner temperature of the reaction container to a set temperature and stirring the starting raw material aqueous solution; spraying an alcoholic solution as a starting raw material in a drop form using ultrasonic waves inside the reaction container; reacting the starting raw material aqueous solution and the starting raw material alcohol solution to make an alcohol aqueous solution; and aging and drying the crystallized material to form oxide nanopowder with a perovskite structure.

Abstract translation: 目的：提供一种制备具有钙钛矿结构的氧化物纳米粉末的方法，以获得具有窄粒度分布和最小化颗粒间相干性的氧化物纳米粉末，并通过控制组分的组成确保高介电常数和烧结温度。 构成：具有钙钛矿结构的氧化物纳米粉末的制造方法包括以下步骤：将水溶液作为起始原料注入反应容器中; 将反应容器的内部温度升高至设定温度并搅拌起始原料水溶液; 在反应容器内使用超声波以液滴形式喷射醇溶液作为起始原料; 使起始原料水溶液和起始原料醇溶液反应制成醇水溶液; 老化并干燥结晶物，形成钙钛矿结构的氧化物纳米粉末。