公开(公告)号：KR101081825B1

公开(公告)日：2011-11-09

申请号：KR1020090017954

申请日：2009-03-03

Applicant: 서울대학교산학협력단

Inventor： 홍성현 ,  도형석

IPC: C09K11/02

Abstract: 카본몰드및 상기카본몰드의양단에각각위치한제1 카본펀치및 제2 카본펀치를포함하는방전플라즈마소결장치를이용한질화물형광체의제조방법이제공된다. 이는질화물분말및 활성제를포함하는형광체분말원료를제공하는단계, 카본필름의적어도일부에보론질화물(BN)을코팅하는단계, 보론질화물이코팅된면이상기형광체분말원료와접촉할수 있도록상기카본필름을상기카본몰드의내벽을따라배치하고, 상기형광체분말원료를상기카본몰드내에투입하되, 상기형광체분말원료와상기제1 카본펀치사이에제1 보론질화물기재를개재시키고, 상기형광체분말원료와상기제2 카본펀치사이에제2 보론질화물기재를개재시킴으로써적어도상기형광체분말원료가상기카본몰드, 상기제1 카본펀치및 상기제2 카본펀치의표면과직접적으로접촉되지않도록하는단계, 상기카본몰드를상기방전플라즈마소결장치의챔버에설치하고상기챔버내의산소를제거하는단계, 상기형광체분말원료혼합물을승온및 가압하여소결하는단계, 및압력을제거하고냉각하여얻어진소결체를분쇄하여형광체분말을얻는단계를포함한다.

公开(公告)号：KR1020100099451A

公开(公告)日：2010-09-13

申请号：KR1020090017954

申请日：2009-03-03

Applicant: 서울대학교산학협력단

Inventor： 홍성현 ,  도형석

IPC: C09K11/02

Abstract: PURPOSE: A method for manufacturing nitride phosphors using a spark plasma sintering method is provided to obtain faster reaction time than a gas pressure sintering method, to economically manufacture the nitride phosphors at low nitrogen pressure(or a vacuum condition), and to prevent carbon contamination. CONSTITUTION: A method for manufacturing nitride phosphors uses an electric discharge plasma sintering apparatus including a carbon mold(22) and first and second carbon punches(23,24). The method comprises the following steps: providing a phosphor powder material(21) including nitride powder and an activator; coating a part of a carbon film with boron nitride; arranging the carbon film along the inner wall of the carbon mold and putting the phosphor powder material into the carbon mold; installing the carbon mold in a chamber of the electric discharge plasma sintering apparatus and removing oxygen from the chamber; sintering the phosphor powder material mixture by pressurizing the mixture; and obtaining phosphor powder by pulverizing the sintered material.

Abstract translation: 目的：提供使用放电等离子体烧结方法制造氮化物荧光体的方法，以获得比气体压力烧结方法更快的反应时间，以在低氮压（或真空条件）下经济地制造氮化物荧光体，并防止碳污染 。 构成：用于制造氮化物荧光体的方法使用包括碳模（22）和第一和第二碳冲头（23,24）的放电等离子体烧结装置。 该方法包括以下步骤：提供包括氮化物粉末和活化剂的荧光体粉末材料（21）; 用氮化硼涂覆一部分碳膜; 沿碳素模具的内壁布置碳膜，并将荧光体粉末材料放入碳模具中; 将碳模具安装在放电等离子体烧结装置的腔室中并从腔室中除去氧气; 通过对混合物加压来烧结荧光体粉末材料混合物; 并通过粉碎烧结材料获得荧光体粉末。