公开(公告)号：US20010026868A1

公开(公告)日：2001-10-04

申请号：US09847436

申请日：2001-05-03

Applicant: NGK Insulators, Ltd.

Inventor： Shigeru Hanzawa ,  Masatoshi Futakawa ,  Saburo Shimizu ,  Kaoru Onuki ,  Ikuo Ioka ,  Ynte Johan Stockmann

IPC: B05D003/02 ,  B32B009/00

CPC classification number: C04B35/806 ,  B32B18/00 ,  C04B35/565 ,  C04B35/573 ,  C04B35/62281 ,  C04B35/62695 ,  C04B2235/3826 ,  C04B2235/3895 ,  C04B2235/422 ,  C04B2235/428 ,  C04B2235/483 ,  C04B2235/5244 ,  C04B2235/5256 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/604 ,  C04B2235/656 ,  C04B2235/658 ,  C04B2235/6581 ,  C04B2235/6586 ,  C04B2235/75 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9684 ,  C04B2237/365 ,  C04B2237/38 ,  C04B2237/586 ,  C04B2237/588 ,  C04B2237/61 ,  Y10T428/24942 ,  Y10T428/249928 ,  Y10T428/249953 ,  Y10T428/249961 ,  Y10T428/249969 ,  Y10T428/249986 ,  Y10T428/24999

Abstract: A SinullSiC material of Si concentration-gradient type is obtained by melt-infiltrating Si into a molded material comprising SiC particles. The SinullSiC material has a porosity of 1.0% or less and in the SinullSiC material the Si concentration decreases gradually from the surface layer towards the innermost layer. A SiC fiber-reinforced SinullSiC composite material of Si concentration-gradient type is obtained by melt-infiltrating Si into a molded material comprising a SiC fiber and SiC particles. The composite material has a porosity of 1.0% or less and in the composite material the Si concentration decreases gradually from the surface layer towards the innermost layer. These materials are significantly improved in corrosion resistance in highly oxidative and corrosive environment, strength, and healability of defects of surface layer and innermost layer.

公开(公告)号：US20040142158A1

公开(公告)日：2004-07-22

申请号：US10753201

申请日：2004-01-07

Applicant: NGK Insulators, Ltd.

Inventor： Shigeru Hanzawa ,  Naoki Hashimoto

IPC: B32B015/04

CPC classification number: F16D69/023 ,  F16D2200/0047 ,  Y10T428/249927

Abstract: It relates to a brake material which has a coefficient of dynamic friction sufficient for exhibiting desired braking performance, and exhibits a wear resistance at least equal to or higher than that of a conventionally used C/C composite even under high temperature conditions. The brake material is characterized by comprising a C/C composite and a matrix comprising copper, and having a coefficient of dynamic friction of at least 0.01.

Abstract translation: 本发明涉及一种制动材料，该制动材料具有足以显示所需制动性能的动摩擦系数，并且即使在高温条件下也具有至少等于或高于常规使用的C / C复合材料的耐磨性。 制动材料的特征在于包括C / C复合材料和包含铜的基体，并且其动摩擦系数至少为0.01。

公开(公告)号：US20020019071A1

公开(公告)日：2002-02-14

申请号：US09854757

申请日：2001-05-14

Applicant: NGK Insulators, Ltd

Inventor： Shigeru Hanzawa ,  Naoki Hashimoto

IPC: D02G003/00

CPC classification number: C04B41/009 ,  C04B41/5071 ,  C04B41/87 ,  C04B2103/0017 ,  C04B2111/00982 ,  Y10T428/2971 ,  C04B41/4523 ,  C04B41/4517 ,  C04B35/83 ,  C04B35/806

Abstract: There is provided a composite material that retains mechanical strength at a given level and at the same time, has a good balance in terms of lightweight properties and resistance to oxidation and a process for production thereof. Achievement is brought about by a composite material that can be produced by impregnating a particular metal silicide into a C/C composite or a carbonaceous composite material utilizing the C/C composite as starting material.

Abstract translation: 提供了在给定水平上保持机械强度并且同时在轻质性能和抗氧化性方面具有良好平衡的复合材料及其生产方法。 通过使用C / C复合材料作为起始材料，将特定的金属硅化物浸渍到C / C复合材料或碳质复合材料中可以生产出复合材料。

公开(公告)号：US20020084558A1

公开(公告)日：2002-07-04

申请号：US10011060

申请日：2001-12-06

Applicant: NGK Insulators, Ltd.

Inventor： Shigeru Hanzawa ,  Kenji Nakano

IPC: C21C005/42 ,  C01B031/36

CPC classification number: F16D69/023 ,  C04B35/573 ,  C04B35/806 ,  C04B41/5059 ,  C04B41/87 ,  F16C33/043 ,  F16D2200/0047 ,  Y10T428/249928

Abstract: Provided are SiC-C/C composite materials which have such characteristics as a suitable kinetic coefficient of friction a corrosion resistance in strongly oxidizing and corrosive environment, a creep resistance, and a spalling resistance, a high hardness, and are hardly oxidized or abraded even when exposed to high temperatures with keeping the excellent impact resistance and light weight of the C/C composites. Furthermore, molten metal pumps are provided from which components do not dissolve into the molten metal even when used in molten metal and have sufficient thermal impact resistance and oxidation resistance. The SiC-C/C composite materials can be produced by a method comprising a step of heating a C/C composite and metallic silicon at high temperatures under reduced pressure with flowing an inert gas to grow silicon carbide and simultaneously filling metallic silicon into the remaining pores, a step of increasing the furnace inner pressure to about 1 atm. with or without cooling the furnace and further raising the furnace inner temperature to diffuse the produced silicon carbide or metallic silicon used for filling the pores into the C/C composite comprising carbon fibers and carbon component other than the carbon fibers from the matrix to react with these carbons, and at least the portions of the molten metal pumps contacting with molten metal are made of the SiC-C/C composite materials.

Abstract translation: 提供的SiC-C / C复合材料具有在强氧化和腐蚀性环境中具有适合的动摩擦系数的耐腐蚀性，耐蠕变性，抗剥落性，高硬度等特性，甚至几乎不被氧化或磨损 当暴露于高温下，保持C / C复合材料的优异的耐冲击性和重量。 此外，即使在熔融金属中使用也具有足够的耐热冲击性和耐氧化性，即使熔融金属也不会溶解到熔融金属中。 SiC-C / C复合材料可以通过包括以下步骤的方法来制造：在低温下在高温下在减压下加热C / C复合材料和金属硅的步骤，流过惰性气体以生长碳化硅并同时将金属硅填充到剩余的 孔，将炉内压增加到约1个大气压的步骤。 有或没有冷却炉子，并且进一步提高炉内温度以将用于填充孔的所生产的碳化硅或金属硅扩散到包含除了来自基体的碳纤维之外的碳纤维和碳成分的C / C复合材料中以与基体反应 这些碳，并且至少熔融金属泵与熔融金属接触的部分由SiC-C / C复合材料制成。

公开(公告)号：US20010026871A1

公开(公告)日：2001-10-04

申请号：US09814208

申请日：2001-03-21

Applicant: NGK Insulators, Ltd.

Inventor： Shigeru Hanzawa ,  Kenji Nakano

IPC: C04B035/56 ,  C04B035/622 ,  B05D003/02

CPC classification number: C04B41/009 ,  C04B41/5059 ,  C04B41/87 ,  Y10T428/30 ,  C04B41/4539 ,  C04B41/4558 ,  C04B35/565 ,  C04B35/83 ,  C04B35/806

Abstract: To provide a member made of carbon having a layer for forming a protective layer as an oxidation resistant protective layer and characterized in that a protective layer with a prescribed thickness and high wear resistance and practically resistant against oxidation even at 700null C., preferably 1000null C. or higher, in an atmosphere with a dew point as high as 30 to 70null C. or in the atmospheric air can be formed only in the surface layer part and to provide a method for producing the same member made of carbon. A member made of carbon having a layer for forming a protective layer as an oxidation resistant protective layer is made available by a method wherein carbon paper impregnated with a phenol resin is rolled on the surface of a member made of carbon and after curing the phenol resin or without curing the phenol resin, the resultant member is preferred at 500 to 600null C. in an inert atmosphere to carbonize the phenol resin and to form the layer for the forming a protective layer as the oxidation resistant protective layer of silicon carbide and a method for producing such a member comprises steps of the foregoing steps.

Abstract translation: 为了提供具有形成保护层的层的碳构件作为抗氧化保护层，其特征在于具有规定的厚度和高耐磨性的保护层，甚至在700℃下实际上耐氧化，优选为1000 ℃以上，露点高达30〜70℃的气氛，或大气中只能形成在表面层部分，并提供制造与碳相同的构件的方法。 通过以下方法获得具有用于形成保护层作为抗氧化保护层的碳的构件，其中将浸渍有酚醛树脂的碳纸在碳制成的表面上滚动并固化酚醛树脂 或者在不固化酚醛树脂的情况下，在惰性气氛中优选在500〜600℃下进行碳化，形成保护层的层作为碳化硅的耐氧化保护层， 制造这种构件的方法包括上述步骤。

公开(公告)号：US20010024726A1

公开(公告)日：2001-09-27

申请号：US09802581

申请日：2001-03-08

Applicant: NGK Insulators, Ltd.

Inventor： Shigeru Hanzawa ,  Kenji Nakano

IPC: B32B009/00

CPC classification number: C04B41/009 ,  C04B41/5059 ,  C04B41/87 ,  Y10T428/30 ,  C04B41/4535 ,  C04B41/455 ,  C04B35/565 ,  C04B35/83

Abstract: To provide an innovative oxidation resistant carbonaceous material usable as an oxidation resistant carbonaceous material practically prevented from oxidation for a long duration even at a high temperature at lowest 800null C. in the atmospheric air at a reasonable price and satisfying the properties such as light weight property in terms of saving energy and easy workability additionally to high strength (high heat impact resistance) at a high temperature, high reliability (toughness, impact resistance, wear resistance) as a material, and durability to environments (corrosion resistance, oxidation resistance, radiation resistance) and to provide a method for producing the same oxidation resistant carbonaceous material. This oxidation resistant carbonaceous material coated with an oxidation resistant protective layer of silicon carbide practically insusceptible to oxidation even being exposed at a high temperature at lowest 800null C. in the atmospheric air for a long duration can be obtained by forming the oxidation resistant protective layer of silicon carbide by applying a coating agent containing metallic silicon and a phenol resin in a desired thickness to at least a part of the surface of a carbonaceous material, carbonizing the phenol resin by prefiring the coating agent at 1000null C. or lower in an inert atmosphere, heating the material to 1420 to 2200null C. in the same atmosphere, and causing reaction of the practically entire amount of the metallic silicon with carbon in the same temperature range.

Abstract translation: 为了提供可用作耐氧化碳质材料的创新的耐氧化碳质材料，实际上可以在合适的价格下在大气中以800℃最低温度长时间地长期保持氧化，并且满足诸如轻质量 在高温下的高强度（高耐热冲击性），作为材料的高可靠性（韧性，耐冲击性，耐磨性））和耐环境性（耐腐蚀性，耐氧化性， 耐辐射性），并提供制造相同的耐氧化碳质材料的方法。 通过形成耐氧化保护层，可以获得涂覆有耐氧化保护层的耐氧化碳质材料，其实际上不易氧化，甚至在大气中在最低800℃的高温下长时间暴露 通过将含有所需厚度的金属硅和酚醛树脂的涂布剂施加到碳质材料表面的至少一部分上，通过在1000℃或更低温度下预涂涂层剂来使所述酚醛树脂碳化，从而碳化碳化硅 在相同的气氛中将材料加热至1420〜2200℃，在相同的温度范围内引起金属硅与碳的实际全部量的反应。