公开(公告)号：US20030015130A1

公开(公告)日：2003-01-23

申请号：US10163526

申请日：2002-06-07

申请人： CERACOMP CO. LTD.

发明人： Ho-Yong Lee ,  Jae-Suk Kim ,  Jong-Bong Lee ,  Tae-Moo Hur ,  Doe-Yeon Kim ,  Nong-Moon Hwang ,  Byoung-Ki Lee ,  Sung-Yoon Chung ,  Suk-Joong L. Kang

IPC分类号： C30B001/00

CPC分类号： C30B11/00 ,  C30B29/32

摘要： The invention relates to a method for growing single crystals of barium titanate nullBaTiO3null and barium titanate solid solutions null(BaxM1-x)(TiyN1-y)O3null. This invention is directed to a method for growing single crystals of barium titanate or barium titanate solid solutions showing the primary and secondary abnormal grain growths with increasing temperature higher than the liquid formation temperature, characterized by comprising the step for a few secondary abnormal grains to continue to grow at a temperature slightly below the critical temperature where the secondary abnormal grain growth starts to occur. The method for growing single crystals of barium titanate or barium titanate solid solutions according to this invention has the advantage of providing an effective low cost in manufacturing process for single crystals by using a conventional heat-treatment process without the need of special equipment. The method for growing single crystals of barium titanate and barium titanate solid solutions according to this invention is also applicable to other material systems showing abnormal grain growth behavior.

摘要翻译： 本发明涉及一种生长钛酸钡[BaTiO3]和钛酸钡固溶体[（BaxM1-x）（TiyN1-y）O3]单晶的方法。 本发明涉及一种用于生长钛酸钡或钛酸钡固体溶液的单晶的方法，其显示出主要和次要的异常晶粒生长，其温度高于液体形成温度，其特征在于包括少量次级异常晶粒继续的步骤 在略低于次生异常晶粒生长开始发生的临界温度的温度下生长。 根据本发明的用于生长钛酸钡或钛酸钡固溶体的单晶的方法具有通过使用常规热处理工艺而不需要特殊设备来提供单晶制造工艺的有效低成本的优点。 根据本发明的用于生长钛酸钡和钛酸钡固溶体的单晶的方法也适用于显示异常晶粒生长行为的其它材料体系。

公开(公告)号：US20040206296A1

公开(公告)日：2004-10-21

申请号：US10845095

申请日：2004-05-14

申请人： CERACOMP CO., LTD.

发明人： Ho-Yong Lee ,  Jong-Bong Lee ,  Tae-Moo Hur

IPC分类号： C30B001/00

CPC分类号： C30B11/00 ,  C30B29/32

摘要： An effective, simple and low-cost a method for growing single crystals of perovskite oxideshaving primary and secondary abnormal grain growths according to temperature condition higher than a determined temperature or an atmosphere of heat treatment, involves a perovskite seed single crystal being adjoined to a polycrystal of perovskite oxides and heating the adjoined combination whereby the seed single crystal grows into the polycrystal at the interface therebetween repressing secondary abnormal grain growths inside the polycrystal. 1) The composition ratio of the polycrystal is controlled and/or the specific component(s) of the polycrystal is(are) added in an excess amount compared to the amount of the component(s) of the original composition of the polycrystal, 2) the heating is performed in the temperature range which is over primary abnormal grain growths completion temperature and below secondary abnormal grain growths activation temperature, whereby the seed single crystal grows continuously.

摘要翻译： 根据高于确定的温度或热处理气氛的温度条件，生长具有初级和次级异常晶粒生长的钙钛矿氧化物单晶的有效的，简单的和低成本的方法包括邻近多晶的钙钛矿种子单晶 的钙钛矿氧化物，并加热相邻的组合，由此种子单晶在其间的界面处生长成多晶体，从而抑制多晶中的次级异常晶粒生长。 1）与多晶原始组成的组分的量相比，控制多晶体的组成比和/或多晶体的特定组分以过量的量添加，2 ）在超过初级异常晶粒生长完成温度并且低于次级异常晶粒生长活化温度的温度范围内进行加热，从而种子单晶连续生长。