Ceramics composite material and method of producing the same
    42.
    发明授权
    Ceramics composite material and method of producing the same 失效
    陶瓷复合材料及其制造方法

    公开(公告)号:US5312787A

    公开(公告)日:1994-05-17

    申请号:US67490

    申请日:1993-05-25

    IPC分类号: C03C14/00

    摘要: A ceramics composite material containing crystallized glass as the matrix and fibers or whiskers of ceramics as a reinforcement material, is obtained by melting original glass to form crystallized glass, compounding the same with fibers or whiskers of oxide ceramics and thereafter crystallizing the original glass. This ceramics composite material does not form any voids and can easily contain at least 50 volume percent of the reinforcement material, whereby a good mechanical strength and fracture toughness are achieved. In the compounding step, the content of the reinforcement can be further increased by forcing out any excess part of the original glass from the reinforcement material by applying pressure to a substance obtained by mixing the original glass with the reinforcement. Further, the ceramics composite material can be efficiently formed into a desired configuration by heating because the original glass flows viscously.

    摘要翻译: 通过熔化原始玻璃以形成结晶玻璃,与氧化物陶瓷的纤维或晶须复合,然后使原始玻璃结晶,得到含有结晶化玻璃作为基体的陶瓷复合材料和陶瓷的纤维或晶须作为增强材料。 该陶瓷复合材料不会形成任何空隙,容易含有50体积%的增强材料,从而获得良好的机械强度和断裂韧性。 在配合工序中,通过对通过将原玻璃与增强材料进行混合而得到的物质施加压力,从加强材料中强制除去原始玻璃的多余部分,能够进一步提高加强物的含量。 此外,由于原始玻璃粘度流动,陶瓷复合材料可以通过加热有效地形成期望的构造。

    Ceramics composite material
    43.
    发明授权
    Ceramics composite material 失效
    陶瓷复合材料

    公开(公告)号:US5190895A

    公开(公告)日:1993-03-02

    申请号:US879158

    申请日:1992-04-30

    IPC分类号: C03C14/00

    摘要: A ceramics composite material containing crystallized glass as the matrix and fibers or whiskers of ceramics as a reinforcement material, is obtained by melting original glass to form crystallized glass, compounding the same with fibers or whiskers of oxide ceramics and thereafter crystallizing the original glass. This ceramics composite material does not form any voids and can easily contain at least 50 volume percent of the reinforcement material, whereby a good mechanical strength and fracture toughness are achieved. In the compounding step, the content of the reinforcement can be further increased by forcing out any excess part of the original glass from the reinforcement material by applying pressure to a substance obtained by mixing the original glass with the reinforcement. Further, the ceramics composite material can be efficiently formed into a desired configuration by heating because the original glass flows viscously.

    摘要翻译: PCT No.PCT / JP89 / 00735 Sec。 371日期1990年3月2日 102(e)1990年3月2日PCT PCT 1989年7月21日PCT公布。 出版物WO90 / 01020 日本1990年8月2日。含有结晶玻璃作为基体的陶瓷复合材料和作为增强材料的陶瓷的纤维或晶须是通过熔化原始玻璃以形成结晶玻璃而获得的,其与氧化物陶瓷的纤维或晶须复合, 然后使原始玻璃结晶。 该陶瓷复合材料不会形成任何空隙,容易含有50体积%的增强材料,从而获得良好的机械强度和断裂韧性。 在配合工序中,通过对通过将原玻璃与增强材料进行混合而得到的物质施加压力,从加强材料中强制除去原始玻璃的多余部分,能够进一步提高加强物的含量。 此外,由于原始玻璃粘度流动,陶瓷复合材料可以通过加热有效地形成期望的构造。

    ProducingSi.sub.3 N.sub.4 composite by sheeting a mixture of Si.sub.3 N.sub
.
    44.
    发明授权
    ProducingSi.sub.3 N.sub.4 composite by sheeting a mixture of Si.sub.3 N.sub . 失效
    生产SI3N4粉末和涂层SIC砂轮的混合物,用于制备绿色板材,面向和层压绿色板材,并烧结层压板

    公开(公告)号:US5141579A

    公开(公告)日:1992-08-25

    申请号:US648762

    申请日:1991-01-31

    摘要: An SiC whisker-reinforced Si.sub.3 N.sub.4 composite material comprising a sintered body of an Si.sub.3 N.sub.4 matrix having dispersed therein SiC whiskers, wherein said SiC whiskers are uniaxially orientated; a process for producing an SiC whisker-reinforced Si.sub.3 N.sub.4 composite material which comprises mixing (1) SiC whiskers having a coating comprising an oxide of at least one metallic element selected from the group consisting of Be, Mg, Ca, Sr, and Ba of the group 2A; Sc, Y, and La of the group 3A; Ti, Zr, and Hf of the group 4A; and Li, Al, and Si with (2) Si.sub.3 N.sub.4 powder, and sintering the mixture; and a process for forming said metal oxide coating on the surface of whiskers which comprises dipping whiskers in a solution of an inorganic or organic salt of at least one metallic element selected from the group consisting of the elements of the groups 2A, 3A, and 4A of the periodic table, Li, and Al and heat treating the whiskers having adhered thereto the metallic salt at a temperature not less than the thermal decomposition temperature of said metallic salt. The SiC whisker-reinforced Si.sub. 3 N.sub.4 composite material exhibits improved strength particularly at high temperatures and improved toughness.

    Tool for warm and hot forgings and process for manufacturing the same
    45.
    发明授权
    Tool for warm and hot forgings and process for manufacturing the same 失效
    用于热锻和锻造的工具和制造过程

    公开(公告)号:US4628178A

    公开(公告)日:1986-12-09

    申请号:US737397

    申请日:1985-05-23

    IPC分类号: B23K35/30 C22C29/06 B23K26/00

    摘要: A tool for warm and hot forgings is proposed which is made by bonding cemented carbide to steel by applying electron beams or laser to the joint. The cemented carbide includes a hard phase of tungsten carbide and a binder metal phase containing at least one of Ni, Co and Fe, and at least one of Cr, Mo and W, the latter forming a solid solution. A process for manufacturing such a tool is also proposed in which unfocussed high-energy beams are applied to each side of the joint and focussed beams are then applied to a point slightly away from the joint toward the cemented carbide.

    摘要翻译: 提出了一种用于温热锻造的工具,其通过将电子束或激光施加到接头而将硬质合金与钢结合。 硬质合金包括碳化钨的硬质相和含有Ni,Co和Fe中的至少一种以及Cr,Mo和W中的至少一种的粘结剂金属相,后者形成固溶体。 还提出了一种用于制造这种工具的方法,其中将未聚焦的高能光束施加到接头的每一侧,并且聚焦的光束然后被施加到稍微远离接头的点朝向硬质合金。

    Process for the production of bonded hard alloys
    46.
    发明授权
    Process for the production of bonded hard alloys 失效
    粘结硬质合金的生产工艺

    公开(公告)号:US4492846A

    公开(公告)日:1985-01-08

    申请号:US433533

    申请日:1982-10-08

    摘要: Process for the production of bonded hard alloys, which comprises inserting a thin sheet of a Fe group metal or its alloy as a filler in between the surfaces of at least one kind of hard alloy, and applying a high energy beam to a part or all of the thin sheet to melt and solidify the thin sheet in a slit form, thereby bonding the hard alloys together.

    摘要翻译: 粘结硬质合金的制造方法,其包括在至少一种硬质合金的表面之间插入作为填料的Fe族金属或其合金的薄片,并将高能束施加到部分或全部 的薄片以狭缝形式熔化和固化薄片,从而将硬合金粘合在一起。