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1. 发明授权

KR101919942B1 알루미나질 소결체 및 그 제조방법 有权
公开(公告)号：KR101919942B1
公开(公告)日：2018-11-19
申请号：KR1020120099858
申请日：2012-09-10
申请人： 니뽄 도쿠슈 도교 가부시키가이샤
发明人： 토모유키미우라 , 히로아키나카무라 , 토모유키오구라 , 노리코사이토
IPC分类号： C04B35/44 , C04B35/64 , C04B35/46
摘要： 전기특성의향상, 가공용이성의향상및 정색의일관성을꾀할수가있는알루미나질소결체및 그제조방법을제공한다.주원료인 AlO의 100 중량부에대해서부원료로서의 Ti화합물을 TiO환산으로 0.1~2.0 중량부첨가해서원료가조제된다. 해당원료로부터작성된성형체의분위기 1m당공기공급량을 8~25L/min로제어하면서상기성형체를 1400~1600℃에서 3시간이상에걸쳐소성한다. 성형체의분위기온도의강온속도를 5~30℃/hr로제어하면서성형체를냉각한다.

2. 发明公开

KR1020140044963A 알루미나질 소결체 및 그 제조 방법 审中-实审
标题翻译：基于氧化铝的烧结体及其制备方法
公开(公告)号：KR1020140044963A
公开(公告)日：2014-04-16
申请号：KR1020120099095
申请日：2012-09-07
申请人： 니뽄 도쿠슈 도교 가부시키가이샤
发明人： 노리코사이토 , 토모유키오구라 , 히로아키나카무라 , 토모유키미우라
IPC分类号： C04B35/478 , C04B35/64
CPC分类号： C04B35/478 , C04B35/64 , C04B2235/3217 , C04B2235/6562
摘要： Provided is an alumina-based sintered body and a manufacturing method thereof, wherein the tissue of the sintered body is uniform and processability is improved, thereby the original color of the sintered body is maintained. The alumina-based sintered body is formed in a crystal lattice and a particle phase and includes 0.08-0.30 wt% of titanium or titanium compounds, inclusively, in terms of titanium oxide. Since titanium or titanium compounds exist in a crystal lattice, grain growth is promoted. Therefore, the tissue of the sintered body becomes uniform and processability is improved. Moreover, the generation of aluminum titanate and oxygen deficiency in titanium oxide is hard to occur.
摘要翻译：本发明提供一种氧化铝系烧结体及其制造方法，其特征在于，烧结体的组织均匀且加工性提高，从而保持烧结体的原色。氧化铝基烧结体形成晶格和粒子相，并且包含0.08-0.30重量％的钛或钛化合物，包括以氧化钛计。由于钛或钛化合物存在于晶格中，所以促进晶粒生长。因此，烧结体的组织变得均匀，加工性提高。此外，难以发生钛酸铝的生成和氧化钛中的氧缺乏。

3. 发明公开

KR1020130035178A 알루미나질 소결체 및 그 제조방법 审中-实审
标题翻译：基于氧化铝的烧结体及其制备方法
公开(公告)号：KR1020130035178A
公开(公告)日：2013-04-08
申请号：KR1020120099858
申请日：2012-09-10
申请人： 니뽄 도쿠슈 도교 가부시키가이샤
发明人： 토모유키미우라 , 히로아키나카무라 , 토모유키오구라 , 노리코사이토
IPC分类号： C04B35/478 , C04B35/64
CPC分类号： C04B35/44 , C04B35/46 , C04B35/64 , C04B2235/3217 , C04B2235/3234
摘要： PURPOSE: An alumina sintered material is provided to control air supply amount and temperature-decreasing rate and temperature-decreasing rate, thereby preventing staining on a random cut side of the alumina sintered material. CONSTITUTION: An alumina sintered material is provided to include 0.1-2.0 parts by weight of Ti compounds based on 100.0 parts by weight of Al2O3. The tanδ in 1MHz-5GHz is 10^-4 and grinding force is 20Kgf or less, and has no staining on random cut side. A manufacturing method of an alumina sintered body comprises a step of adding 0.1-2.0 parts by weight of TiO into 100.0 parts by weight of Al2O3.; a step of obtaining a molded body by molding the raw material; a step of sintering the molded body at 1400-1600>= for 3 hours or more while controlling air supply of 8-25 L/min per 1m^3; and a step of controlling the temperature decrease rate per 5-30 >=/hr and cooling the molded body. [Reference numerals] (AA) P[parts by weight(TiO_2 conversion)];
摘要翻译：目的：提供氧化铝烧结材料，以控制空气供应量和降温速率和降温速率，从而防止氧化铝烧结材料的随机切割面上的污染。构成：提供氧化铝烧结材料，其包含基于100.0重量份Al 2 O 3的0.1-2.0重量份的Ti化合物。 1MHz-5GHz的tanδ为10 ^ -4，研磨力为20Kgf以下，随机切割面无染色。氧化铝烧结体的制造方法包括将0.1-2.0重量份的TiO添加到100.0重量份的Al 2 O 3中的步骤。通过模制原料获得成型体的步骤; 在1400-1600℃= 3小时以上烧结成型体的步骤，同时控制每1m ^ 3的8-25L / min的空气供应量; 以及控制每5-30> = / hr的温度降低速率并冷却成型体的步骤。（AA）P [重量份（TiO_2转化率）];

4. 发明授权

KR101907038B1 알루미나질 세라믹스 및 그 제조방법 有权
公开(公告)号：KR101907038B1
公开(公告)日：2018-10-11
申请号：KR1020120069553
申请日：2012-06-28
申请人： 니뽄 도쿠슈 도교 가부시키가이샤
发明人： 노리코사이토 , 히로노리이시다 , 히로아키나카무라 , 토모유키오구라 , 토모유키미우라
IPC分类号： C04B35/10 , C04B35/64
摘要： (과제) 고순도임에도불구하고, 가공효율이높고가공중에파편이나치핑이적은알루미나질세라믹스및 그제조방법을제공한다. (해결수단) 알루미나순도가 99.5 (중량%) 이상의알루미나질세라믹스로서, 장축길이가 10㎛이상이고, 또한, 종횡비가 2 이상인알루미나의이방성결정입자를 60% 이상포함한다. 알루미나입자의입경은, 클수록입계의저항이작아지므로알루미나입자의장축의길이를 10㎛이상으로함으로서가공효율을높게한다. 또한, 알루미나입자의종횡비가 2 이상이므로, 어떤일정방향 G에숫돌이닿는때에파괴되기쉬운경형이현저하게나타난다. 그결과, 고순도임에도불구하고, 가공효율이높고, 가공중의파편이나치핑이적은알루미나질세라믹스가얻어진다.

5. 发明公开

KR1020130002952A 알루미나질 세라믹스 및 그 제조방법 审中-实审
标题翻译：基于铝的陶瓷及其制备方法
公开(公告)号：KR1020130002952A
公开(公告)日：2013-01-08
申请号：KR1020120069553
申请日：2012-06-28
申请人： 니뽄 도쿠슈 도교 가부시키가이샤
发明人： 노리코사이토 , 히로노리이시다 , 히로아키나카무라 , 토모유키오구라 , 토모유키미우라
IPC分类号： C04B35/10 , C04B35/64
CPC分类号： C04B35/10 , C04B35/64 , C04B2235/3217
摘要： PURPOSE: Alumina ceramics with low breaking or chipping rate in processing, and a manufacturing method thereof are provided to increase process efficiency by including alumina particles having aspect ratio of 2 or higher. CONSTITUTION: Alumina ceramics has the alumina purity of higher than 99.5(wt%). The alumina ceramics includes 60% or more anisotropic crystal particles(10) having the major axis length of 10 micrometers or higher, and the aspect ratio of 2 or greater. The anisotropic crystal particles of the alumina include average 2 or more pores per 1 particle. A manufacturing method of the alumina ceramics comprises the following steps: molding an alumina cube which is formed particles with the average particle diameter of 0.5-1 micrometer, the aspect ratio of 2 or more, and the long axis direction length of 0.5 micrometer or longer; and sintering the molded alumina cube at 1,400 deg. Celsius for 3 hours.
摘要翻译：目的：提供在加工中具有低破碎或破碎率的氧化铝陶瓷及其制造方法，以通过包括具有2或更高的纵横比的氧化铝颗粒来提高加工效率。构成：氧化铝陶瓷的氧化铝纯度高于99.5（wt％）。氧化铝陶瓷包括长轴长度为10微米以上的长径比为2以上的60％以上的各向异性结晶粒子（10）。氧化铝的各向异性晶体颗粒包括每1个颗粒平均2个或更多个孔。氧化铝陶瓷的制造方法包括以下步骤：将平均粒径为0.5-1微米，纵横比为2以上，长轴方向长度为0.5微米以上的氧化铝立方体成型 ; 并在1400度烧结模制的氧化铝立方体。摄氏3小时。

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