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1. 发明授权

US06753284B2 Sintered alumina ceramic, method for producing the same, and cutting tool 有权
标题翻译：烧结氧化铝陶瓷，其制造方法和切削工具
公开(公告)号：US06753284B2
公开(公告)日：2004-06-22
申请号：US10198956
申请日：2002-07-22
申请人： Hiroshi Yamamoto , Takeshi Mitsuoka , Kazuhiro Urashima
发明人： Hiroshi Yamamoto , Takeshi Mitsuoka , Kazuhiro Urashima
IPC分类号： C04B35111
CPC分类号： C04B35/50 , C04B35/117 , C04B35/505
摘要： A sintered alumina ceramic obtained by preparing a raw material powder mixture containing alumina and a Group 3A metal oxide or a Group 3A metal compound which provides a Group 3A metal oxide on heating, and firing said raw material powder mixture. The sintered ceramic contains alumina particles having an average particle diameter of 4.0 &mgr;m or smaller. In the sintered ceramic, the total content of alkali metal elements, alkaline earth metal elements, Si, and Ti as converted to oxides accounts for 0.1 mol or less with respect to 100 mols of alumina, the total peak intensity for the principal peaks for ReAlO3 and Re3Al5O12 (Re: Group 3A metal) amounts to from 1 to 75% of the intensity of the principal peak of alumina as measured by X-ray diffraction, and the relative density is 99.0% or higher with respect to the theoretical density.
摘要翻译：通过制备含有氧化铝和3A族金属氧化物的原料粉末混合物或在加热时提供3A族金属氧化物的3A族金属化合物，烧制所述原料粉末混合物而获得的烧结氧化铝陶瓷。烧结陶瓷含有平均粒径为4.0μm以下的氧化铝粒子。在烧结陶瓷中，转化为氧化物的碱金属元素，碱土金属元素，Si和Ti的总含量相对于100摩尔氧化铝为0.1摩尔以下，ReAlO 3的主峰的总峰强度和Re 3 Al 5 O 12（Re：3A族金属）相当于通过X射线衍射测定的氧化铝主峰的强度的1〜75％，相对密度相对于理论密度为99.0％以上。

2. 发明授权

US06239052B1 Sintered ceramic body for spark plug, process for preparing the same and spark plug 有权
标题翻译：用于火花塞的烧结陶瓷体，其制备方法和火花塞
公开(公告)号：US06239052B1
公开(公告)日：2001-05-29
申请号：US09358850
申请日：1999-07-22
申请人： Osamu Fukushima
发明人： Osamu Fukushima
IPC分类号： C04B35111
CPC分类号： H01T13/38
摘要： The sintered ceramic body of this invention is a cylindrical insulator having a through hole used for spark plugs, which is characterized by comprising alumina as a main component and Sn component in an amount of 0.05-2 wt % as SnO and can be manufactured by a step of preparing a slurry by mixing a raw material powder comprising alumina as maakessmain component and Sn component in an amount of 0.05-2 wt % as SnO, water and a binder; a step of preparing a granulated powder from the slurry, a step of packing the granulated powder in a prescribed mold and pressing it to form a compact having the same shape as sintered ceramic body to be prepared and a step of sintering the compact. The spark plug of this invention is characterized by being provided with said sintered ceramic body having a through hole; a center electrode inserted in one end of said through hole; a main metal shell mounted on the outside of said one end of the sintered ceramic body, to which the center electrode is inserted; a ground electrode, which is attached to the main metal shell and has a tip closely confronting the center electrode; and a terminal which is mounted in the ther end of the through hole.
摘要翻译：本发明的烧结陶瓷体是一种具有用于火花塞的通孔的圆柱形绝缘体，其特征在于以氧化铝为主要成分，Sn组分的SnO 2为0.05-2重量％，可由通过将包含氧化铝作为主要成分的原料粉末和Sn组分为0.05-2重量％的Sn组分混合制备浆料的步骤，水和粘合剂; 从浆料制备造粒粉末的步骤，将造粒粉末包装在规定的模具中并压制，形成具有与要制备的烧结陶瓷体相同形状的压块的步骤和烧结该压块的步骤。本发明的火花塞的特征在于设置有具有通孔的所述烧结陶瓷体; 插入所述通孔的一端的中心电极; 安装在所述烧结陶瓷体的所述一端的外侧的主金属壳，所述中心电极插入所述主金属壳; 接地电极，其附接到主金属壳体并具有与中心电极紧密相对的尖端; 以及安装在通孔的末端的端子。

3. 发明授权

US06319870B1 Fabrication of low thermal expansion, high strength cordierite structures 有权
标题翻译：低热膨胀，高强度堇青石结构的制造
公开(公告)号：US06319870B1
公开(公告)日：2001-11-20
申请号：US09443758
申请日：1999-11-19
申请人： Douglas M. Beall , Martin J. Murtagh
发明人： Douglas M. Beall , Martin J. Murtagh
IPC分类号： C04B35111
CPC分类号： C04B35/634 , B01J35/04 , C04B35/195 , C04B35/6263 , C04B35/632 , C04B35/6365 , C04B38/0006 , C04B2111/00129 , C04B2111/00793 , C04B2111/0081 , C04B2111/32 , C04B2235/3206 , C04B2235/3217 , C04B2235/3218 , C04B2235/3222 , C04B2235/3418 , C04B2235/3445 , C04B2235/3463 , C04B2235/3481 , C04B2235/349 , C04B2235/449 , C04B2235/5292 , C04B2235/5296 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/77 , C04B2235/80 , C04B2235/96 , C04B2235/9607 , F01N3/2828 , F01N2330/06 , Y10T428/24149 , C04B35/185 , C04B35/20 , C04B35/443
摘要： The present invention is directed at sintered ceramic articles exhibiting a crystalline phase assemblage comprising, by weight, of 65-95% cordierite and 5-35% of a secondary phase selected from the group consisting of mullite, magnesium-aluminate spinel, and sapphirine and having a bulk analytical composition consisting essentially of about, by weight, 32-51% SiO2, 35-49% Al2O3, 7-16% MgO. Furthermore, the ceramic articles exhibit an effective strength of greater than about 3000, a CTE of less than about 15×10−7/° C., over the temperature range of 25° C., to 1000° C., and a total intrusion porosity, as measured by a Hg intrusion method, of at least 20%. This invention also relates to a method for producing a sintered ceramic article having the aforementioned cordierite and secondary minor phase mixture.
摘要翻译：本发明涉及显示结晶相组合的烧结陶瓷制品，其包含按重量计包含65-95％的堇青石和5-35％的选自莫来石，铝酸镁尖晶石和蓝宝石的第二相，以及其具有基本上由约重量计的32-51％SiO 2，35-49％Al 2 O 3，7-16％MgO组成的本体分析组合物。此外，陶瓷制品在25℃至1000℃的温度范围内表现出大于约3000的有效强度，小于约15×10-7 /℃的CTE，并且总侵入孔隙率（通过Hg侵入法测量）至少为20％。本发明还涉及一种具有上述堇青石和二次次相混合物的烧结陶瓷制品的制造方法。

4. 发明授权

US06346495B1 Die pressing arctube bodies 失效
标题翻译：模压管体
公开(公告)号：US06346495B1
公开(公告)日：2002-02-12
申请号：US09475434
申请日：1999-12-30
申请人： Frederick W. Dynys , Curtis Edward Scott
发明人： Frederick W. Dynys , Curtis Edward Scott
IPC分类号： C04B35111
CPC分类号： C04B35/115 , C04B35/111 , Y10T156/1056
摘要： A method of making a component of a ceramic discharge chamber comprising the steps of forming a ceramic composition including an aluminum powder, a binder and a grain growth inhibitor. The alumina powder has a tap density greater than 1.0 gram per cc. The ceramic composition is then die pressed to form a component preform. Next, the component preform is heated to remove at least a substantial portion of the binder.
摘要翻译：一种制造陶瓷放电室的部件的方法，包括以下步骤：形成包括铝粉末，粘合剂和晶粒生长抑制剂的陶瓷组合物。氧化铝粉末的振实密度大于1.0克每立方厘米。然后将陶瓷组合物压模以形成组分预制件。接下来，加热组分预制件以除去粘合剂的至少大部分。

5. 发明授权

US06284694B1 Moulded spherical ceramic body, production process and use 有权
标题翻译：成型球形陶瓷体，生产工艺和使用
公开(公告)号：US06284694B1
公开(公告)日：2001-09-04
申请号：US09117227
申请日：1998-11-23
申请人： Paul Moeltgen , Pirmin Wilhelm , Martin Luette
发明人： Paul Moeltgen , Pirmin Wilhelm , Martin Luette
IPC分类号： C04B35111
CPC分类号： B01J2/16 , C04B35/111 , C04B35/1115 , C04B35/117 , C04B35/18 , C04B35/44 , C04B35/443 , C04B35/478 , C04B35/622 , C04B35/6263 , C04B35/62695 , C04B35/6303 , C04B35/6316 , C04B2235/3206 , C04B2235/3218 , C04B2235/3224 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3262 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3284 , C04B2235/3418 , C04B2235/3427 , C04B2235/5427 , C04B2235/5436 , C04B2235/5445 , C04B2235/5481 , C04B2235/77 , C04B2235/785 , C04B2235/94 , C04B2235/96
摘要： The present invention concerns a moulded microcrystalline spherical Al2O3- sintered body, process for its production as well as use.
摘要翻译：本发明涉及一种模制的微晶球形Al 2 O 3烧结体，其生产和使用的方法。

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