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公开(公告)号:US4693857A
公开(公告)日:1987-09-15
申请号:US716212
申请日:1985-03-26
IPC分类号: C04B35/58 , C04B35/584 , C04B35/597 , C04B33/32
CPC分类号: C04B35/584 , C04B35/597
摘要: As the aluminum nitride component of a sintering aid for powdered silicon nitride, either a spinel type compound having oxygen dissolved in aluminum nitride to form a solid solution or a poly-type aluminum nitride is used. Since the compound is highly stable in water, it can be effectively used in the form of an aqueous slurry mixture. As the sintering aid, this compound is used as effectively as aluminum nitride.
摘要翻译: 作为用于粉末状氮化硅的烧结助剂的氮化铝组分,使用具有溶解在氮化铝中的氧以形成固溶体的尖晶石型化合物或多型氮化铝。 由于该化合物在水中高度稳定,因此可以以含水浆料混合物的形式有效地使用。 作为烧结助剂,该化合物与氮化铝一样有效地使用。
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公开(公告)号:US4412009A
公开(公告)日:1983-10-25
申请号:US304720
申请日:1981-09-23
申请人: Michiyasu Komatsu , Akihiko Tsuge , Katsutoshi Komeya , Akio Ando
发明人: Michiyasu Komatsu , Akihiko Tsuge , Katsutoshi Komeya , Akio Ando
IPC分类号: C04B35/584 , C04B35/593 , C04B35/597 , C04B35/50 , C04B35/58
CPC分类号: C04B35/584 , C04B35/593 , C04B35/597
摘要: Disclosed is a method of producing a sintered body of ceramics, wherein a powder mixture consisting, essentially of at most 10%, exclusive of 0%, by weight of yttrium oxide, at most 10%, exclusive of 0%, by weight of aluminum oxide, at most 10%, exclusive of 0%, by weight of aluminum nitride, at most 5%, exclusive of 0%, by weight of at least one material selected from the group consisting of titanium oxide, magnesium oxide and zirconium oxide, and the balance essentially of silicon nitride is sintered under a non-oxidizing atmosphere.
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公开(公告)号:US4879263A
公开(公告)日:1989-11-07
申请号:US776836
申请日:1985-09-17
IPC分类号: C22C29/16 , C04B35/58 , C04B35/584 , F16C33/04 , F16J15/34
CPC分类号: F16C33/043 , C04B35/584 , F16J15/3496
摘要: A sliding member formed of sintered silicon nitride shows improvement in strength and abrasion resistance when substantially all the .beta.-phase type fine silicon nitride particles present as a main component in the sintered silicon nitride have major diameters not exceeding 60 .mu.m and aspect ratios of not less than 5 and the aforementioned fine silicon nitride particles have a relative density of not less than 98%.
摘要翻译: 由氮化硅烧结体形成的滑动部件,当在氮化硅烧结体中作为主要成分存在的大部分的全部β相微细氮化硅粒子的主要直径均不超过60μm,长径比不大时,表现出强度和耐磨性的提高。 小于5,上述细小的氮化硅颗粒的相对密度不低于98%。
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公开(公告)号:US4511525A
公开(公告)日:1985-04-16
申请号:US443678
申请日:1982-11-22
IPC分类号: C04B35/584 , C04B35/597 , C04B35/58
CPC分类号: C04B35/597 , C04B35/584
摘要: Disclosed is a process for producing a sintered silicon nitride-base body, which comprises; mixing powder (A) of heat-treated or not heat-treated silicon nitride powder and powder (B) of powder obtained by heat-treating a powdery mixture of silicon nitride powder and a sintering additive in a non-oxidizing atmosphere and then grinding the resulting heat-treated products into powder; and forming the resultant powdery mixture into a desired shape, which is then sintered in a non-oxidizing atmosphere.The process is characterized by heating powder (B), or powder (A) and powder (B), before sintering, thereby producing sintered silicon nitride body of highly improved properties.
摘要翻译: 公开了一种生产氮化硅烧结体的方法,其包括: 将经热处理或未经热处理的氮化硅粉末的粉末(A)和通过在非氧化性气氛中热处理氮化硅粉末和烧结添加剂的粉末混合物得到的粉末(B)混合,然后研磨 将热处理产物变成粉末; 并将所得粉末混合物形成所需形状,然后在非氧化气氛中烧结。 该方法的特征在于在烧结之前加热粉末(B)或粉末(A)和粉末(B),由此制备具有高度改进性能的烧结氮化硅体。
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公开(公告)号:US4327187A
公开(公告)日:1982-04-27
申请号:US122659
申请日:1980-02-19
申请人: Michiyasu Komatsu , Akihiko Tsuge , Katsutoshi Komeya , Akio Ando
发明人: Michiyasu Komatsu , Akihiko Tsuge , Katsutoshi Komeya , Akio Ando
IPC分类号: C04B35/584 , C04B35/593 , C04B35/597 , C04B35/50 , C04B35/58
CPC分类号: C04B35/584 , C04B35/593 , C04B35/597
摘要: Disclosed is a method of producing a sintered body of ceramics, wherein a powder mixture consisting, essentially of at most 10%, exclusive of 0%, by weight of yttrium oxide, at most 10%, exclusive of 0%, by weight of aluminum oxide, at most 10%, exclusive of 0%, by weight of aluminum nitride, at most 5%, exclusive of 0%, by weight of at least one material selected from the group consisting of titanium oxide, magnesium oxide and zirconium oxide, and the balance essentially of silicon nitride is sintered under a non-oxidizing atmosphere.
摘要翻译: 公开了一种制造陶瓷烧结体的方法,其中粉末混合物基本上由至少10%(不包括0重量%)的氧化钇,至多10重量%,不包括0重量%的铝 氧化物,至多10%,不包括0重量%的氮化铝,至多5重量%,不包括0重量%的选自氧化钛,氧化镁和氧化锆中的至少一种材料, 并且在非氧化气氛下,基本上由氮化硅制成的平衡被烧结。
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公开(公告)号:US20110058583A1
公开(公告)日:2011-03-10
申请号:US12944947
申请日:2010-11-12
申请人: Yumi FUKUDA , Masaaki Tamanani , Katsuko Tamatani , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara
发明人: Yumi FUKUDA , Masaaki Tamanani , Katsuko Tamatani , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara
CPC分类号: C09K11/7734 , C09K11/0883 , H01L33/502 , H01L2224/48091 , H01L2924/00014
摘要: A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2): (M1-xRx)a2AlSib2Oc2Nd2 (2) (In the general formula (2), M is at least one metallic element excluding Si and Al, R is a luminescence center element, and x, a2, b2, c2 and d2 satisfy the following relationships: 0
摘要翻译: 一种发光材料,其特征在于,当波长为250-500nm的光被激发时,其表现出在490-580nm波长范围内的发射峰,并且具有由以下通式表示的组成( 2):( M1-xRx)a2AlSib2Oc2Nd2(2)(在通式(2)中,M是除Si和Al以外的至少一种金属元素,R是发光中心元素,x,a2,b2,c2和d2 满足以下关系:0
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公开(公告)号:US4264565A
公开(公告)日:1981-04-28
申请号:US121095
申请日:1980-02-13
申请人: Hiroshi Inoue , Katsutoshi Komeya , Akihiko Tsuge
发明人: Hiroshi Inoue , Katsutoshi Komeya , Akihiko Tsuge
IPC分类号: C01B21/068 , C04B35/584 , C01B21/06
CPC分类号: C04B35/584 , C01B21/0685 , C01P2004/61 , C01P2006/80
摘要: A method for producing powder of .alpha.-silicon nitride which comprises the steps of:adding 0.3 to 2 parts by weight of powder of carbon and 0.005 to 1 paret by weight of at least one silicon compound selected from the group consisting of Si.sub.3 N.sub.4, SiC and silicon oxide nitride series compounds to one part by weight (as converted to SiO.sub.2) to a liquid silane derivative which produces a precipitate and HCl by hydrolysis and further causes SiO.sub.2 to be grown by the baking of said precipitate, or the precipitate produced by hydrolysis of the liquid silane derivatives;hydrolyzing the resultant mixture, if necessary;washing the mixture to separate a solid component, if necessary; andbaking the solid component for reduction and nitrogenization at a temperature of 1300.degree. to 1500.degree. C. in an atmosphere mainly consisting of a nitrogen gas or a gas of a nitrogen compound.
摘要翻译: 一种生产α-氮化硅粉末的方法,包括以下步骤:将0.3至2重量份的碳粉和0.005至1重量份的至少一种选自Si 3 N 4,SiC的硅化合物和 氧化硅氮化物系列化合物与1重量份(转化为SiO 2)相对于通过水解产生沉淀物和HCl的液体硅烷衍生物,并且进一步通过焙烧所述沉淀生成SiO 2或通过水解生成的沉淀 液体硅烷衍生物; 如果需要,水解所得混合物; 如果需要,洗涤混合物以分离固体组分; 在1300〜1500℃的温度下,在氮气或氮化合物气体的气氛中焙烧固体成分。
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公开(公告)号:US08475680B2
公开(公告)日:2013-07-02
申请号:US12207771
申请日:2008-09-10
申请人: Yumi Fukuda , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara , Katsuko Tamatani
发明人: Yumi Fukuda , Masaaki Tamatani , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara
CPC分类号: C09K11/7734 , C09K11/0883 , H01L33/502 , H01L2224/48091 , H01L2924/00014
摘要: A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2): (M1-xRx)a2AlSib2Oc2Nd2 (2) (In the general formula (2), M is at least one metallic element excluding Si and Al, R is a luminescence center element, and x, a2, b2, c2 and d2 satisfy the following relationships: 0
摘要翻译: 一种发光材料,其特征在于,当波长为250-500nm的光被激发时,其表现出在490-580nm波长范围内的发射峰,并且具有由以下通式表示的组成( 2):( M1-xRx)a2AlSib2Oc2Nd2(2)(在通式(2)中,M是除Si和Al以外的至少一种金属元素,R是发光中心元素,x,a2,b2,c2和d2 满足以下关系:0
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公开(公告)号:US20110058582A1
公开(公告)日:2011-03-10
申请号:US12944938
申请日:2010-11-12
申请人: Yumi FUKUDA , Masaaki Tamatani , Katsuko Tamatani , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara
发明人: Yumi FUKUDA , Masaaki Tamatani , Katsuko Tamatani , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara
CPC分类号: C09K11/7734 , C09K11/0883 , H01L33/502 , H01L2224/48091 , H01L2924/00014
摘要: A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2): (M1-xRx)a2AlSib2Oc2Nd2 (2) (In the general formula (2), M is at least one metallic element excluding Si and Al, R is a luminescence center element, and x, a2, b2, c2 and d2 satisfy the following relationships:0
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10.
公开(公告)号:US07612006B2
公开(公告)日:2009-11-03
申请号:US11664072
申请日:2005-09-27
IPC分类号: C04B35/584 , C04B35/78
CPC分类号: C04B35/593 , B82Y30/00 , C04B35/5935 , C04B35/638 , C04B2235/3206 , C04B2235/3217 , C04B2235/3225 , C04B2235/3232 , C04B2235/3244 , C04B2235/3258 , C04B2235/3826 , C04B2235/3865 , C04B2235/3869 , C04B2235/3878 , C04B2235/3886 , C04B2235/3895 , C04B2235/526 , C04B2235/5264 , C04B2235/5288 , C04B2235/5445 , C04B2235/604 , C04B2235/658 , C04B2235/661 , C04B2235/766 , C04B2235/77 , C04B2235/80 , C04B2235/85 , C04B2235/96 , C04B2235/963 , C04B2235/9669 , F16C33/32
摘要: To provide a sintered silicon nitride with conductivity and densification, an oxide of titanium group elements, such as titanium oxide, hafnium oxide, zirconium oxide and the like, aluminum oxide and/or aluminum nitride is added as needed to silicon nitride-oxidant of rare-earth elements-aluminum oxide system or silicon nitride-oxide of rare-earth elements-magnesia system, and then specified quantity of carbon nonotube (CNT) is added to the above mixture. CNT generates silicon carbide after the reaction with contiguous or proximal silicon nitride and the like depending on the sintering duration at high temperature. Since silicon carbide is generated along with nanotubes, the silicon carbide functions as conductor with excellent heat resistance, corrosion resistance and the like.
摘要翻译: 为了提供具有导电性和致密化性的烧结氮化硅,根据需要,将氧化钛,氧化铪,氧化锆等钛族元素的氧化物,氧化铝和/或氮化铝添加到稀有氮化硅 - 碱土元素 - 氧化铝体系或稀土元素 - 氧化镁体系的氮氧化硅 - 氧化物,然后向上述混合物中加入规定量的碳非管(CNT)。 根据高温下的烧结持续时间,CNT与邻接或近似氮化硅等反应后产生碳化硅。 由于碳化硅与纳米管一起产生,所以碳化硅作为导体具有优异的耐热性,耐腐蚀性等。
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