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1. 发明专利

JP2014167423A Nuclear reactor structural member and fuel assembly having the same 审中-公开
标题翻译：核反应堆结构构件和燃料组件
公开(公告)号：JP2014167423A
公开(公告)日：2014-09-11
申请号：JP2013039224
申请日：2013-02-28
申请人： Kyocera Corp , 京セラ株式会社
发明人： ODA TAKEHIRO , SHINO NAOYUKI , NAKAMURA KIYOTAKA
IPC分类号： G21C3/30 , G21C3/06
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a nuclear reactor structural member which is free from flying off of silicon carbide fiber and thus less susceptible to scratches and chips even when surface temperature of the nuclear reactor structural member, such as a fuel cladding tube and fuel channel box, rises to a high temperature of 600°C or higher, and to provide a fuel assembly having the same.SOLUTION: A nuclear reactor structural member is a tabular member made of base materials, each comprising a silicon carbide sintered body with silicon carbide fiber on a surface thereof and silicon that covers both the surface of the silicon carbide sintered body and the silicon carbide fiber. The nuclear reactor structural member is resistant to damage due to contact with fuel rods, spacers, control rods, or the like during inserting and retracting operation and contact with radioactive contaminants contained in cooling water and, since the melting point of silicon is 1410°C, the silicon carbide fiber does not fly off even when surface temperature of the nuclear reactor structural member reaches as high as 1400°C, which allows the surface of the nuclear reactor structural member to be kept resistant to damage and to be used for a long period of time.
摘要翻译：要解决的问题：提供一种核反应堆结构件，其不会脱离碳化硅纤维，因此即使在诸如燃料包层管和燃料通道的核反应堆结构件的表面温度下也不易受划痕和碎屑的影响盒升高至600℃以上的高温，并提供具有该燃料组件的燃料组件。解决方案：核反应堆结构构件是由基材制成的板状构件，每个包括具有碳化硅的碳化硅烧结体其表面上的纤维和覆盖碳化硅烧结体的表面和碳化硅纤维的硅。核反应堆结构构件在插入和收回操作期间由于与燃料棒，间隔物，控制棒等的接触而受到损坏，并且与冷却水中包含的放射性污染物接触，并且由于硅的熔点为1410℃ 即使核反应堆结构件的表面温度高达1400℃，碳化硅纤维也不飞散，这使得核反应堆结构件的表面能够保持耐损坏并长期使用一段的时间。

2. 发明专利

JP2014148429A Silicon nitride porous body and filter 审中-公开
标题翻译：硅酸盐多孔体和过滤器
公开(公告)号：JP2014148429A
公开(公告)日：2014-08-21
申请号：JP2013016824
申请日：2013-01-31
申请人： Kyocera Corp , 京セラ株式会社
发明人： OTA MIZUHO , ODA TAKEHIRO , ISHIKAWA KAZUHIRO
IPC分类号： C04B38/00 , B01D39/20 , C04B35/584
摘要： PROBLEM TO BE SOLVED: To provide a silicon nitride porous body and a filter each unlikely to break even if thermal or mechanical impacts are impressed thereon.SOLUTION: The provided silicon nitride porous body not only includes silicon nitride as a main component but also includes a compound of zirconium. The average pore diameter thereof is 20 μm or less, and the ratio, with respect to the pore diameter of the cumulative 25 vol.% on the cumulative distribution curve of pore diameters (p25), of the pore diameter of the cumulative 75 vol.% (p75) (p75/p25) is 1.5 or less. In a case where the average pore diameter and ratio (p75/p25) of such a silicon nitride porous body are confined respectively to these ranges, it becomes possible not only to reduce the average pore diameter but also to abate diameter irregularities of pores existing within the silicon nitride porous body, and therefore, the localization of residual stresses within the silicon nitride porous body becomes unlikely. A silicon nitride porous body unlikely to break even if thermal or mechanical impacts are impressed thereon can therefore be provided.
摘要翻译：要解决的问题：提供一种氮化硅多孔体和过滤器，即使在其上施加热或机械冲击时也不会破裂。解决方案：所提供的氮化硅多孔体不仅包括氮化硅作为主要成分，而且包括锆化合物。其平均孔径为20μm以下，相对于孔径的累积分布曲线（p25）的累积25体积％的孔径的累积75体积％的孔径的比例。％（p75）（p75 / p25）为1.5以下。在这种氮化硅多孔体的平均孔径和比（p75 / p25）分别被限制在这些范围的情况下，不仅可以降低平均孔径，而且可以减轻存在于其中的孔内的直径不规则性氮化硅多孔体，因此，氮化硅多孔体内的残余应力的定位变得不可能。因此，可以提供即使在其上施加热或机械冲击也不会破裂的氮化硅多孔体。

3. 发明专利

JP2009287827A Protection member, protection unit and protection body 审中-公开
标题翻译：保护会员，保护单位和保护机构
公开(公告)号：JP2009287827A
公开(公告)日：2009-12-10
申请号：JP2008140625
申请日：2008-05-29
申请人： Kyocera Corp , 京セラ株式会社
发明人： KAYAMA TEPPEI , ODA TAKEHIRO , NAKANISHI MASAHITO
IPC分类号： F41H5/02 , C04B35/563 , C04B35/565
摘要： PROBLEM TO BE SOLVED: To provide a protection member further excellent in the protection performance to a flying matter such as a bullet having high penetrability and also reduced in weight, and a protection body using the same. SOLUTION: The protection member 1 includes an inclined surface 1d on an outer circumferential part of a face 1c opposite to an impact receiving face 1a of a ceramic body. Since crack becomes difficult to progress in the protection member 1, the protection performance for arresting penetration of the flying object in the protection member 1 is never impaired. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供对具有高穿透性并且也减轻重量的子弹等飞散物质的保护性能更好的保护构件，以及使用该保护构件的保护体。解决方案：保护构件1在与陶瓷体的冲击承受面1a相对的面1c的外周部上包括倾斜面1d。由于在保护构件1中的裂纹变得难以进行，因此不会妨碍防止飞行物体在保护构件1中的穿透的保护性能。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2008239471A Boron carbide powder, method for manufacturing the same, and boron carbide-based compact and boron carbide-based sintered compact using the same 有权
标题翻译：碳硼化物粉末，其制造方法和基于碳硼化物的复合材料和基于碳硼化物的烧结压片
公开(公告)号：JP2008239471A
公开(公告)日：2008-10-09
申请号：JP2007223294
申请日：2007-08-29
申请人： Kyocera Corp , 京セラ株式会社
发明人： KAYAMA TEPPEI , HORIUCHI NOBUOKI , NAKANISHI MASAHITO , ODA TAKEHIRO
IPC分类号： C01B31/36 , C04B35/563 , C04B35/628
摘要： PROBLEM TO BE SOLVED: To solve the following problem: a lipophilic film formed on a surface of boron carbide powder cannot thoroughly inhibit a reaction of water with the boron carbide powder, and if the temperature rises to about 200-300°C, the lipophilic film thermally decomposes and hot steam penetrates the surface of boron carbide powder to oxidize the boron carbide powder, consequently a sintered compact obtained from the powder has many pores and high hardness and high strength specific to boron carbide are not exhibited. SOLUTION: Boron carbide powder containing carbon simple substance or silicon simple substance and having a boron hydroxide-containing layer on a surface thereof is provided. When the specific surface area of the boron carbide powder is represented by X (m 2 /g) and the oxygen content of the boron hydroxide in the layer by Y (mass%), the boron carbide powder satisfies 0 COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决以下问题：在碳化硼粉末的表面上形成的亲脂性膜不能完全抑制水与碳化硼粉末的反应，并且如果温度升至约200-300℃ ，亲油性膜热分解，热蒸汽穿透碳化硼粉末的表面以氧化碳化硼粉末，因此从粉末获得的烧结体具有许多孔，并且不显示出高硬度和高碳化硼特性的高强度。解决方案：提供含有碳单体或硅单体并在其表面上含有氢氧化硼的层的碳化硼粉末。当碳化硼粉末的比表面积由X（m 2 / g）表示，层中的氢氧化硼的氧含量为Y（质量％）时，碳化硼粉末满足 0

5. 发明专利

JP2007169118A Silicon nitride sintered compact, and member for semiconductor manufacturing unit and member for liquid crystal manufacturing unit using the same 有权
标题翻译：硅酸盐烧结紧固件，半导体制造单元的部件和使用其的液晶制造单元的部件
公开(公告)号：JP2007169118A
公开(公告)日：2007-07-05
申请号：JP2005370703
申请日：2005-12-22
申请人： Kyocera Corp , 京セラ株式会社
发明人： KAYAMA TEPPEI , ODA TAKEHIRO , OSHIMA KAZUYOSHI , TAKIGAWA KAZUAKI
IPC分类号： C04B35/584 , H01L21/683
摘要： PROBLEM TO BE SOLVED: To provide a silicon nitride sintered compact having a practically large mechanical strength and a small coefficient of thermal expansion, and small grinding resistance. SOLUTION: This silicon nitride sintered compact is mainly composed of β-Si 3 N 4 , and it contains 5-30 vol% Si 2 N 2 O (silicon oxynitride) and 1-10 vol% β-RE 2 Si 2 O 7 (RE is an element in the group III of the periodical table). The sintered compact keeps a strong mechanical strength due to a composition composed mainly of β-Si 3 N 4 , and has a small grinding resistance due to a composition having 5-30 vol% Si 2 N 2 O and also has a small coefficient of thermal expansion of the grain boundary layer and a small residual stress in the sintered compact due to a composition having the range of 1-10 vol% β-RE 2 Si 2 O 7 , and further the sintered compact exhibits excellent processability allowing a smooth grinding process and the working of high dimensional accuracy due to its small grinding force. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有实际大的机械强度和小的热膨胀系数以及小的耐磨性的氮化硅烧结体。该解决方案：该氮化硅烧结体主要由β-Si 3 SBS 4 组成，并且含有5-30体积％的Si 2 SB> N 2（氮氧化硅）和1-10体积％的β-RE 2 2 >（RE是期刊第三组元素）。该烧结体由于主要由β-Si 3 S N 4 组成的组合物而保持强大的机械强度，由于组成为5-30 vol％Si 2 2 O，并且由于具有以下成分的组成，在烧结体中也具有小的晶界面热膨胀系数和小的残余应力范围为1-10体积％的β-RE 2 2 7 ，此外，烧结体表现出优异的加工性，允许平滑的研磨工艺并且由于其小的研磨力而具有高尺寸精度的工作。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007031278A Aluminum nitride-based sintered compact 审中-公开
标题翻译：基于氮化铝的烧结压实
公开(公告)号：JP2007031278A
公开(公告)日：2007-02-08
申请号：JP2006232484
申请日：2006-08-29
申请人： Kyocera Corp , 京セラ株式会社
发明人： YOKOYAMA KIYOSHI , ODA TAKEHIRO
IPC分类号： C04B35/581 , H01L23/15 , H05K1/03
CPC分类号： H01L2924/0002 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To improve the strength and toughness of an aluminum nitride-based sintered compact. SOLUTION: The aluminum nitride-based sintered compact contains, in an aluminum nitride powder, 0.1-30 wt.% of at least one kind selected from among oxides of the group 3a elements in the periodic table, 0.1-30 wt.% of at least one kind selected from the group consisting of the nitrides, carbides, silicides and borides of group 4a elements, group 5a elements and group 6a elements; furthermore, 0.1-5 wt.% of at least one kind selected from among the oxides of the group 6a elements. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提高氮化铝基烧结体的强度和韧性。解决方案：氮化铝基烧结体在氮化铝粉末中含有0.1-30重量％的选自周期表中第3a族元素的氧化物中的至少一种，0.1-30重量％选自由4a族元素的氮化物，碳化物，硅化物和硼化物组成的组中的至少一种的％，5a族元素和6a族元素; 此外，0.1-5重量％的选自6a族元素的氧化物中的至少一种。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2005179176A Molten-metal-resistant member and method for manufacturing the same 有权
标题翻译：耐金属材料及其制造方法
公开(公告)号：JP2005179176A
公开(公告)日：2005-07-07
申请号：JP2004247330
申请日：2004-08-26
申请人： Kyocera Corp , 京セラ株式会社
发明人： OKAWA YOSHIHIRO , ODA TAKEHIRO
IPC分类号： C04B35/584 , C04B41/91
摘要： PROBLEM TO BE SOLVED: To solve the problems that cracks and fissures are liable to occur due to repeated use when a member to be exposed to molten metal is formed of a silicon nitride and that the oxide, dust, etc., in the metal element in the molten metal are liable to stick when the silicon nitride is used as a member to be immersed with the molten metal. SOLUTION: The molten-metal-resistant member comprises a silicon nitride-based sintered material having crystals of the silicon nitride and a grain boundary layer containing at least one of a metal element of ≥1,000°C in melting point, wherein the concentration of the metal silicide on the surface of the silicon nitride-based sintered material is made lower than that of the interior thereof. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了解决当暴露于熔融金属的构件由氮化硅形成并且氧化物，灰尘等在反复使用时容易发生裂纹和裂缝的问题当氮化硅用作浸入熔融金属的构件时，熔融金属中的金属元素容易粘附。解决方案：耐熔融金属构件包括具有氮化硅晶体和含有熔点≥1,000℃的金属元素中的至少一种的晶界层的氮化硅基烧结材料，其中，氮化硅系烧结体的表面上的金属硅化物的浓度比其内部低。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2014005190A Ceramic sintered body, and corrosion resistant member, filter and antihalation member using the same 有权
标题翻译：陶瓷烧结体，耐腐蚀成员，过滤器和防腐剂成员
公开(公告)号：JP2014005190A
公开(公告)日：2014-01-16
申请号：JP2012238085
申请日：2012-10-29
申请人： Kyocera Corp , 京セラ株式会社
发明人： HIRANO YOSHINORI , OTA MIZUHO , ISHIKAWA KAZUHIRO , ODA TAKEHIRO
IPC分类号： C04B35/584 , A01K87/04
摘要： PROBLEM TO BE SOLVED: To provide a ceramic sintered body in which a grain boundary phase is hardly corroded even when being exposed to an acid or an alkaline component, and which can maintain high mechanical strength; and to provide a corrosion resistant member, a filter and an antihalation member using the same.SOLUTION: A ceramic sintered body contains 80 mass% or more silicon nitride with respect to the whole mass, and also contains at least one kind of monticellite and merwinite in a grain boundary phase of a crystal of the silicon nitride. Since the amount of a corrosive amorphous phase constituting the grain boundary phase becomes relatively small owing to existence of at least one kind of monticellite and merwinite in the grain boundary phase, mechanical strength is hardly deteriorated even when being exposed to an acid or an alkaline component.
摘要翻译：要解决的问题：提供即使暴露于酸或碱性成分也难以腐蚀晶界相并且能够保持高机械强度的陶瓷烧结体; 并提供耐腐蚀性构件，过滤器和使用其的防晕构件。解决方案：陶瓷烧结体相对于整个物质含有80质量％以上的氮化硅，并且还含有至少一种蒙脱石和镁矿在氮化硅的晶体的晶界相中。由于晶界相中由于存在至少一种蒙脱石和锂锰矿，所以构成晶界相的腐蚀性非晶相的量变得相对较小，即使在暴露于酸或碱性成分的情况下，机械强度几乎不劣化。

9. 发明专利

JP2012106920A Member for molten metal, and heater tube 有权
标题翻译：用于金属和加热管的会员
公开(公告)号：JP2012106920A
公开(公告)日：2012-06-07
申请号：JP2011236105
申请日：2011-10-27
申请人： Kyocera Corp , 京セラ株式会社
发明人： OTA MIZUHO , ODA TAKEHIRO
IPC分类号： C04B35/584
摘要： PROBLEM TO BE SOLVED: To provide a member for a molten metal composed of a silicon nitride-based sintered compact, which is excellent in mechanical properties and thermal shock resistance, is highly reliable, and can be used for a long period.SOLUTION: The member for a molten metal is composed of a silicon nitride-based sintered compact having a columnar crystal 1 containing silicon nitride as a main component and a grain boundary phase 2 containing an oxide of a metal element as a main component. The silicon nitride-based sintered compact has open pores 3 on its surface; inside the open pores 3, a plurality of second columnar crystals 1b having a larger diameter than the first columnar crystals 1a present inside the silicon nitride sintered compact are present so as to entangle with each other. The erosion of the grain boundary phase 2 on the inner surface of the open pores 3 by the molten metal is suppressed, so mechanical properties and thermal shock resistance of the silicon nitride sintered compact itself can be improved. The molten metal less reacts with and attaches to the grain boundary phase 2, so the member for a molten metal can be used over a long period.
摘要翻译：要解决的问题：为了提供由机械性能和耐热冲击性优异的氮化硅基烧结体组成的熔融金属的构件，是高度可靠的，并且可以长时间使用。解决方案：用于熔融金属的构件由具有包含氮化硅作为主要成分的柱状晶体1和含有以金属元素的氧化物为主要成分的晶界相2的氮化硅基烧结体组成。氮化硅基烧结体在其表面上具有开孔3; 在开孔3的内部存在多个第二柱状晶体1b，该第二柱状晶体1b的直径大于存在于氮化硅烧结体内部的第一柱状晶体1a，以便彼此缠结。通过熔融金属在开孔3的内表面上的晶界相2的侵蚀被抑制，因此能够提高氮化硅烧结体本身的机械特性和耐热冲击性。熔融金属与晶界相2较少反应并附着在晶界2上，所以可以长时间使用熔融金属的构件。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2010194591A Tool and apparatus for friction stir welding 审中-公开
标题翻译：用于摩擦焊接的工具和装置
公开(公告)号：JP2010194591A
公开(公告)日：2010-09-09
申请号：JP2009043884
申请日：2009-02-26
申请人： Kyocera Corp , 京セラ株式会社
发明人： ODA TAKEHIRO
IPC分类号： B23K20/12 , C04B35/584 , C04B41/87
摘要： PROBLEM TO BE SOLVED: To provide a pin for a tool for friction stir welding, the pin being manufactured without causing minute crack on the surface of the pin and having prolonged life as a result, and to provide an apparatus for friction stir welding.
SOLUTION: The pin 1 to be pressed against a member to be welded is provided on a fore end of a support 2, and the pin 1 includes ceramic having a covering layer 3 on its surface.
COPYRIGHT: (C)2010,JPO&INPIT

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