High-temperature direct-contact thermal energy storage using
phase-change media
    3.
    发明授权
    High-temperature direct-contact thermal energy storage using phase-change media 失效
    使用相变介质的高温直接接触式热能储存

    公开(公告)号:US4512388A

    公开(公告)日:1985-04-23

    申请号:US506030

    申请日:1983-06-20

    摘要: A high-temperature direct-contact thermal energy storage element for use in a system for storage and retrieval of thermal energy in the range of about 400.degree. to about 3000.degree. F. The thermal energy is directly stored, without heat exchange tubes in composite latent/sensible heat thermal energy storage media utilizing the heat of fusion and high-temperature stability of alkaline metal and alkaline earth carbonates, chlorides, nitrates, nitrites, fluorides, hydroxides and sulfates and metal, metallic alloys and mixtures thereof maintained within a porous support-structure material which itself is capable of storage as sensible heat. The thermal energy storage according to the invention may be effectively utilized for storage of thermal energy derived from solar, industrial waste, process heat, and high-temperature gas reactor energy sources and retrieved for a wide variety of uses such as combustion air preheating, drying, space heating, heating of process gases, power generating heat engines and the like.

    摘要翻译: 一种高温直接接触式热能储存元件,用于在约400°至约3000°F范围内储存和回收热能的系统中。热能直接储存,无复合潜热的换热管 使用熔融热和碱金属和碱土金属碳酸盐,氯化物,硝酸盐,亚硝酸盐,氟化物,氢氧化物和硫酸盐的金属,金属合金及其混合物的热敏热存储介质,其保持在多孔载体 - 结构材料本身能够作为显热存储。 根据本发明的热能储存可以有效地用于储存源自太阳能,工业废物,工艺热和高温气体反应堆能源的热能,并且可用于多种用途,如燃烧空气预热,干燥 ,空间加热,工艺气体的加热,发电热机等。

    Self-supporting composite bodies
    4.
    发明授权
    Self-supporting composite bodies 失效
    自支撑复合体

    公开(公告)号:US5296419A

    公开(公告)日:1994-03-22

    申请号:US16629

    申请日:1993-02-12

    摘要: Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron nitride material typically resulting in a body comprising a boron-containing compound, a nitrogen-containing compound and metal. The mass to be infiltrated may contain one or more inert fillers admixed with the boron nitride, to produce a composite by reactive infiltration, which composite comprises a matrix which embeds the filler material. The matrix, in a composite body containing filler material, comprises one or more of metal, a boron-containing compound and a nitrogen-containing compound. The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity. The mass to be infiltrated can be contained within a refractory vessel having a venting means included therein.

    摘要翻译: 通过将母体金属反应性渗透到氮化硼材料中而产生自支撑体,通常产生包含含硼化合物,含氮化合物和金属的体。 待渗透的物质可以包含一种或多种与氮化硼混合的惰性填料,以通过反应性渗透产生复合材料,该复合材料包括嵌入填料的基质。 含有填料的复合体中的基体包含一种或多种金属,含硼化合物和含氮化合物。 可以改变或控制反应物和工艺条件的相对量,以产生包含不同体积百分比的陶瓷,金属和/或孔隙的体。 待渗透的物质可以包含在其中包括排气装置的耐火容器中。

    Method of modifying ceramic composite bodies by a post-treatment process
and articles produced thereby
    6.
    发明授权
    Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby 失效
    通过后处理工艺改变陶瓷复合体的方法和由此制备的制品

    公开(公告)号:US5162098A

    公开(公告)日:1992-11-10

    申请号:US700349

    申请日:1991-05-07

    摘要: This invention relates generally to a novel method of manufacturing a composite body, such as a ZrB.sub.2 -ZrC-Zr (optional) composite body, by utilizing a post-treatment process and to the novel products made thereby. More particularly, the invention relates to a method of modifying a composite body comprising one or more boron-containing compounds (e.g., a boride or a boride and a carbide) which has been made by the reactive infiltration of a molten parent metal into a bed or mass containing boron carbide, and optionally one or more inert fillers, to form the body.

    摘要翻译: 本发明一般涉及通过利用后处理工艺制造复合体,例如ZrB 2 -ZrC-Zr(任选的)复合体的新方法和由此制备的新产品。 更具体地说,本发明涉及一种修饰包括一种或多种含硼化合物(例如,硼化物或硼化物和碳化物)的复合体的方法,其通过将熔融母体金属的反应性渗入床形成 或含有碳化硼的物质,以及任选的一种或多种惰性填料以形成体。

    Additives for property modification in ceramic composite bodies
    9.
    发明授权
    Additives for property modification in ceramic composite bodies 失效
    陶瓷复合材料的改性添加剂

    公开(公告)号:US5403790A

    公开(公告)日:1995-04-04

    申请号:US960407

    申请日:1993-01-11

    摘要: This invention relates generally to a novel method of manufacturing a composite body. More particularly, the present invention relates to a method for modifying the resultant properties of a composite body, by, for example, minimizing the amount of porosity present in the composite body. Moreover, additives, whether used alone or in combination, (1) can be admixed with the permeable mass, (2) can be mixed or alloyed with the parent metal, (3) can be placed at an interface between the parent metal and the preform or mass of filler material, (4) or any combination of the aforementioned methods, to modify properties of the resultant composite body. Particularly, additives such as VC, NbC, WC, W.sub.2 B.sub.5, TaC, ZrC, ZrB.sub.2, SiB.sub.6, SiC, MgO, Al.sub.2 O.sub.3, ZrO.sub.2, CeO.sub.2, Y.sub.2 O.sub.3, La.sub.2 O.sub.3, MgAl.sub.2 O.sub.4, HfO.sub.2, ZrSiO.sub.4, Yb.sub.2 O.sub.3 and Mo.sub.2 B.sub.5 can be combined with the permeable mass in an amount of about 5-50 percent by weight, prior to reactively infiltrating the permeable mass. Moreover, an additive may also include substantially pure elemental metals (e.g., Nb, Ti, Hf, V, Ta, Cr, Mo, Al, Cr, Si, Co and W) which may be provided by any of the methods discussed above herein.

    摘要翻译: PCT No.PCT / US91 / 04951 Sec。 371日期:1993年1月11日 102(e)日期1993年1月11日PCT PCT 1991年7月12日PCT公布。 公开号WO92 / 00933 日本1992年1月23日。本发明一般涉及一种制造复合体的新方法。 更具体地说,本发明涉及通过例如最小化复合体中存在的孔隙率来改变复合体的合成性能的方法。 此外,无论单独使用还是组合使用,添加剂(1)均可与可渗透物质混合,(2)可与母体金属混合或合金化,(3)可置于母体金属与母体金属之间的界面处 填充材料的预制件或质量,(4)或上述方法的任何组合,以改变所得复合材料的性能。 特别地,可以将诸如VC,NbC,WC,W2B5,TaC,ZrC,ZrB2,SiB6,SiC,MgO,Al2O3,ZrO2,CeO2,Y2O3,La2O3,MgAl2O4,HfO2,ZrSiO4,Yb2O3和Mo2B5的添加剂与渗透性 在反应性渗透可渗透物质之前,其质量为约5-50重量%。 此外,添加剂还可以包括可以通过上述任何方法提供的基本上纯的元素金属(例如,Nb,Ti,Hf,V,Ta,Cr,Mo,Al,Cr,Si,Co和W) 。

    Method of producing ceramic composite bodies
    10.
    发明授权
    Method of producing ceramic composite bodies 失效
    生产陶瓷复合体的方法

    公开(公告)号:US5372178A

    公开(公告)日:1994-12-13

    申请号:US823009

    申请日:1992-01-15

    摘要: This invention relates generally to a novel method of preparing self-supporting bodies, and novel products made thereby. In its more specific aspects, this invention relates to a method for producing self-supporting bodies comprising one or more boron-containing compounds (e.g., a boride or a boride and a carbide, etc.) by reactive infiltration of molten parent metal into a preform comprising boron carbide or a boron donor material combined with a carbon donor material and, optionally, one or more inert fillers, to form the body. Specifically, a boron carbide material or combination of a boron donor material and a carbon donor material, and in either case, optionally, one or more inert fillers, are sedimentation cast, spray coated, tapped, slip cast, pressed, etc., onto or into a body and into a particular desired shape.

    摘要翻译: 本发明一般涉及一种制备自支撑体的新方法,以及由此制成的新颖产品。 在其更具体的方面,本发明涉及一种通过将熔融母体金属反应性渗透到一种或多种含硼化合物(例如硼化物或硼化物和碳化物等)中来制备包含一种或多种含硼化合物的自支撑体的方法, 包括碳化硼或与碳供体材料组合的硼供体材料和任选的一种或多种惰性填料以形成所述体。 具体地说,碳化硼材料或硼供体材料和碳供体材料的组合,并且在任一情况下,任选地一种或多种惰性填料是沉淀铸造,喷涂,轻敲,滑模,压制等,到 或进入身体并且变成特定期望的形状。