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1. 发明授权

US6033727A Method for strengthening and aging-prevention of TZP by formation of silica/zircon layer on the surface thereof 有权
标题翻译：通过在其表面形成二氧化硅/锆石层来加强和预防TZP的方法
公开(公告)号：US6033727A
公开(公告)日：2000-03-07
申请号：US234927
申请日：1999-01-22
申请人： Yong Kee Baek , Hyoun-Ee Kim , Young Hak Ko , Eul-Son Kang
发明人： Yong Kee Baek , Hyoun-Ee Kim , Young Hak Ko , Eul-Son Kang
IPC分类号： C23C16/40 , C04B41/50 , C04B41/87 , C23C16/42 , C23C16/22
CPC分类号： C04B41/009 , C04B41/5035 , C04B41/87
摘要： A method for strengthening and aging-prevention of a TZP ceramics includes the steps of: introducing TZP ceramic and Si-based ceramic powders into a furnace in which a water vapor pressure is controlled; and exposing the TZP ceramic next to Si-based ceramic in a flowing H.sub.2 atmosphere containing H.sub.2 O of no more than 0.1%, to form a silica/zircon layer on the surface of the TZP ceramic.
摘要翻译： TZP陶瓷的强化和老化防止方法包括以下步骤：将TZP陶瓷和Si基陶瓷粉末引入其中控制水蒸气压的炉中; 并且在含有不超过0.1％的H 2 O的流动H 2气氛中将TZP陶瓷在Si基陶瓷旁边暴露，以在TZP陶瓷的表面上形成二氧化硅/锆石层。

2. 发明授权

US06420294B1 Titanium diboride sintered body with silicon nitride as a sintering aid and a method for manufacture thereof 有权
公开(公告)号：US06420294B1
公开(公告)日：2002-07-16
申请号：US09607143
申请日：2000-06-29
申请人： Yong Kee Baek , Hyoun-Ee Kim , June Ho Park , Eul Son Kang
发明人： Yong Kee Baek , Hyoun-Ee Kim , June Ho Park , Eul Son Kang
IPC分类号： C04B3558
CPC分类号： C04B35/58071 , C04B35/593 , C04B35/645
摘要： The present invention relates to a titanium diboride sintered body and a method for manufacturing thereof wherein silicon nitride is added to a titanium diboride as a sintering aid. The sintered body according to the present invention has a fine structure and excellent physical characteristics such as a strength, hardness, etc. Therefore, the sintered body according to the present invention may be applicable to certain materials which requires high strength and hardness.

3. 发明授权

US6136738A Silicon nitride sintered body with region varying microstructure and method for manufacture thereof 有权
标题翻译：具有区域变化的微结构的氮化硅烧结体及其制造方法
公开(公告)号：US6136738A
公开(公告)日：2000-10-24
申请号：US222241
申请日：1998-12-28
申请人： Yong Kee Baek , Hyoun-Ee Kim , Won Ho Lee , Ki Min Lee , Seung Su Baek , Eul Son Kang
发明人： Yong Kee Baek , Hyoun-Ee Kim , Won Ho Lee , Ki Min Lee , Seung Su Baek , Eul Son Kang
IPC分类号： B32B5/14 , C04B35/48 , C04B35/584 , C04B35/593
CPC分类号： C04B35/5935
摘要： A silicon nitride sintered body is obtained by mixing 2.about.16 wt % of Yb.sub.2 O.sub.3 as a sintering additive with Si.sub.3 N.sub.4 powders including unavoidable impuirities, pressing the mixed powder into a desired form, and gas-pressure sintering the thusly pressed form, whereby an inner region of the sintered body has a fine microstructure, and an outer region thereof has a mixed microstructure in which elongated grains and fine grains co-exist and a method for manufacturing a silicon nitride sintered body, includes the steps of: adding and mixing 2.about.16 wt % of Yb.sub.2 O.sub.3 powder as a sintering additive into a silicon nitride (Si.sub.3 N.sub.4) powder; ball-milling the mixed powder to obtain a slurry; drying and classifying the slurry; press-forming the resultant powder in a die uniaxially and isostatically; and gas-pressure sintering the resultant compact body at a temperature in the range of 1800.about.2000.degree. C., whereby an inner region of the resultant sintered body has a fine microstructure, and an outer region of the resultant sintered body has a mixed microstructure in which elongated grains and fine grains co-exist.
摘要翻译：通过将2重量％的Yb 2 O 3作为烧结添加剂与包含不可避免的渗透性的Si 3 N 4粉末混合，将混合粉末压制成所需的形式，并将这样压制的气体加压烧结，得到氮化硅烧结体，的烧结体具有精细的微观结构，其外部区域具有细长晶粒和细晶粒共存的混合微观结构和氮化硅烧结体的制造方法，包括以下步骤：添加并混合2 DIFFERENCE 16 重量％的作为烧结添加剂的Yb 2 O 3粉末成为氮化硅（Si 3 N 4）粉末; 对混合粉末进行球磨，得到浆料; 干燥和分级浆料; 将所得粉末在模具中单轴和等静压成型; 在1800℃〜2000℃的温度下对所得的压实体进行气体压力烧结，由此得到的烧结体的内部区域具有微观结构，所得烧结体的外部区域具有混合显微组织其中细长晶粒和细晶粒共存。

4. 发明授权

US06534428B2 Titanium diboride sintered body with silicon nitride as a sintering aid 有权
标题翻译：二硼化钛烧结体用氮化硅作为烧结助剂
公开(公告)号：US06534428B2
公开(公告)日：2003-03-18
申请号：US10143083
申请日：2002-05-10
申请人： Yong Kee Baek , Hyoun-Ee Kim , June Ho Park , Eul Son Kang
发明人： Yong Kee Baek , Hyoun-Ee Kim , June Ho Park , Eul Son Kang
IPC分类号： C04B3558
CPC分类号： C04B35/58071 , C04B35/593 , C04B35/645
摘要： The present invention relates to a titanium diboride sintered body and a method for manufacturing thereof wherein silicon nitride is added to a titanium diboride as a sintering aid. The sintered body according to the present invention has a fine structure and excellent physical characteristics such as a strength, hardness, etc. Therefore, the sintered body according to the present invention may be applicable to certain materials which requires high strength and hardness.
摘要翻译：二硼化钛烧结体及其制造方法技术领域本发明涉及二硼化钛烧结体及其制造方法，其中氮化硅作为烧结助剂添加到二硼化钛中。本发明的烧结体具有微细的结构和优异的物理特性如强度，硬度等。因此，根据本发明的烧结体可以适用于需要高强度和硬度的某些材料。

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