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    Titanium diboride sintered body with silicon nitride as a sintering aid
    1.
    发明授权
    Titanium diboride sintered body with silicon nitride as a sintering aid 有权
    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。

    Silicon nitride sintered body with region varying microstructure and method for manufacture thereof
    4.
    发明授权
    Silicon nitride sintered body with region varying microstructure and method for manufacture thereof 有权
    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。

    High strength light-weight ceramic insulator
    5.
    发明授权
    High strength light-weight ceramic insulator 有权
    高强度轻质陶瓷绝缘子

    公开(公告)号：US06444600B1

    公开(公告)日：2002-09-03

    申请号：US09613156

    申请日：2000-07-10

    申请人： Yong Kee Baek ,  Sang Ju Kwak ,  Hak Sung Park ,  Jong Uk Yoon

    发明人： Yong Kee Baek ,  Sang Ju Kwak ,  Hak Sung Park ,  Jong Uk Yoon

    IPC分类号： C04B3580

    CPC分类号： C04B30/02 ,  C04B38/0038 ,  C04B14/303 ,  C04B14/4656 ,  C04B24/383 ,  C04B40/0268 ,  C04B14/062 ,  C04B14/4637 ,  C04B24/2652 ,  C04B35/803

    摘要： The present invention relates to a high strength light-weight ceramic insulator and a method for manufacture thereof wherein the light-weight ceramic insulator may be used at a high temperature by using a heat-resisting ceramic fiber. A colloidal silica or colloidal alumina which is an inorganic binder, and a methyl cellulose or a liquid-phase organic polymer which is an organic binder are added to an alumina-silica-based fiber containing zirconia, a concentration thereof is adjusted, a slurry is vacuum-molded, and drying and heating are carried out, thereby fabricating the ceramic insulator. Here, it is possible to fabricate the high strength light-weight ceramic insulator by artificially selectively positioning the inorganic binder to a contact point of the fibers.

    摘要翻译： 高强度轻质陶瓷绝缘子及其制造方法技术领域本发明涉及一种高强度轻质陶瓷绝缘体及其制造方法，其特征在于，轻质陶瓷绝缘子可以通过使用耐热陶瓷纤维在高温下使用。 将作为无机粘合剂的胶态二氧化硅或胶体氧化铝，以及作为有机粘合剂的甲基纤维素或液相有机聚合物加入到含有氧化锆的氧化铝 - 二氧化硅系纤维中，调节其浓度， 进行真空成型，干燥和加热，由此制造陶瓷绝缘体。 这里，通过将无机粘合剂人工选择性地定位到纤维的接触点，可以制造高强度轻质陶瓷绝缘体。