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    High alumina sintered body
    91.
    发明授权
    High alumina sintered body 失效
    高铝烧结体

    公开(公告)号：US4595665A

    公开(公告)日：1986-06-17

    申请号：US668652

    申请日：1984-11-06

    Applicant: Hiroshi Takayama ,  Hiroshi Maruyama

    Inventor： Hiroshi Takayama ,  Hiroshi Maruyama

    IPC: C04B35/10 ,  C04B35/111 ,  C04B41/50 ,  C04B41/87 ,  C04B35/18 ,  B32B9/04 ,  C03C10/04

    CPC classification number: C04B41/009 ,  C04B35/111 ,  C04B41/5025 ,  C04B41/87 ,  Y10T428/26

    Abstract: A high alumina sintered body composed of a substrate consisting substantially of .alpha.-Al.sub.2 O.sub.3 and a surface layer of mullite precipitated in situ on the substrate. The sintered body is obtained by molding and sintering a composition comprising a main component containing at least 75% by weight, based on the total weight of the composition, of .alpha.-Al.sub.2 O.sub.3 and a predetermined amount of silica, a mullite mineralyzing agent and B.sub.2 O.sub.3. The sintered body has a combination of excellent thermal shock resistance and mechanical properties such as flexural strength.

    Abstract translation: 由基本上由α-Al 2 O 3组成的基材和莫来石表面层组成的高铝烧结体原位沉淀在基材上。 烧结体是通过将基于组合物的总重量至少75重量％的主成分，α-Al 2 O 3和预定量的二氧化硅，莫来石矿化剂和B 2 O 3的组合物进行成型和烧结而获得的。 烧结体具有优异的耐热冲击性和抗弯强度等机械性能的组合。

    Process for manufacturing ceramic fibers consisting mainly of alumina and silica
    93.
    发明授权
    Process for manufacturing ceramic fibers consisting mainly of alumina and silica 失效
    用于制造主要由氧化铝和二氧化硅组成的陶瓷纤维的方法

    公开(公告)号：US4511664A

    公开(公告)日：1985-04-16

    申请号：US617192

    申请日：1984-06-04

    Applicant: Masafumi Yamamoto

    Inventor： Masafumi Yamamoto

    IPC: C03C10/04 ,  C03B32/00 ,  C03B37/00 ,  C03C13/00

    CPC classification number: C03C13/00 ,  Y10S264/19

    Abstract: A mixture containing 35 to 65% by weight of Al.sub.2 O.sub.3, 30 to 60% by weight of SiO.sub.2, 1.5 to 4% by weight of Cr.sub.2 O.sub.3, and 0.01 to 0.1% by weight of carbon, the balance being unavoidable impurities, is melted, and amorphous fibers are formed from said molten material by blowing or spinning. The fibers are heated rapidly to a temperature of 950.degree. C. to 1,150.degree. C., held at that temperature for several to about a dozen minutes, and cooled rapidly to ordinary room temperature.

    Abstract translation: 将含有35〜65重量％的Al 2 O 3，30〜60重量％的SiO 2，1.5〜4重量％的Cr 2 O 3和0.01〜0.1重量％的碳（其余是不可避免的杂质）熔融， 通过吹塑或纺丝由所述熔融材料形成无定形纤维。 将纤维快速加热至950℃至1150℃的温度，在该温度下保持数十分钟至几十分钟，并迅速冷却至常温。

    High expansion glass-ceramic articles
    94.
    发明授权
    High expansion glass-ceramic articles 失效
    高膨胀玻璃陶瓷制品

    公开(公告)号：US4480044A

    公开(公告)日：1984-10-30

    申请号：US575902

    申请日：1984-02-01

    Applicant: Patrick McAlinn

    Inventor： Patrick McAlinn

    IPC: C03C3/095 ,  C03C4/06 ,  C03C8/24 ,  C03C10/00 ,  C03C10/04 ,  C03C10/14 ,  C03C3/22

    CPC classification number: C03C4/04 ,  C03C10/00

    Abstract: The present invention relates to the production of photothermally crystallizable, chemically-machinable glass-ceramic articles exhibiting coefficients of thermal expansion over the temperature interval of 20.degree.-400.degree. C. between 120-160.times.10.sup.-7 /.degree. C. Base glass articles having compositions consisting essentially, in weight percent, of 5.5-15% Li.sub.2 O, 2-25% Al.sub.2 O.sub.3, the weight ratio Al.sub.2 O.sub.3 :Li.sub.2 O being less than 1.7:1, 60-85% SiO.sub.2, and at least one photosensitive metal in the indicated proportion selected from the group of 0.001-0.03% gold, computed as Au, 0.001-0.3% silver, computed as AgCl, and 0.001-1% copper, computed as Cu.sub.2 O, are first exposed to ultraviolet radiations to develop a latent image therein, then heated to a temperature between the annealing and softening points thereof to generate metallic nuclei therein and the growth of lithium metasilicate particles thereon, and, finally, heated to a temperature in excess of 700.degree. C., but less than 800.degree. C., to effect an essentially crystalline article, including the conversion of a portion of the lithium metasilicate crystals to lithium disilicate. Quartz and/or cristobalite will also be formed.

    Abstract translation: 本发明涉及在120-160×10-7 /℃之间的20〜-400℃的温度间隔内显示热膨胀系数的光热可结晶化学机械加工的玻璃陶瓷制品。具有组成的基础玻璃制品 基本上以重量百分比计，5.5-15％的Li2O，2-25％的Al2O3，Al2O3：Li2O的重量比小于1.7：1，60-85％的SiO2，至少一种所选比例的感光金属 从0.001-0.03％的金，0.001-0.3％的银，以AgCl计算的0.001-0.3％的金和以Cu2O计算的0.001-1％的铜首先暴露于紫外线辐射以在其中形成潜像，然后加热 到其退火和软化点之间的温度以在其中产生金属核和其上的偏硅酸锂颗粒的生长，并且最终加热到超过700℃但小于800℃的温度来实现 一个基本上 包括将一部分偏硅酸锂晶体转化为二硅酸锂的结晶制品。 也将形成石英和/或方英石。

    Sanitary ware and process of production
    96.
    发明授权
    Sanitary ware and process of production 失效
    卫浴和生产过程

    公开(公告)号：US4337316A

    公开(公告)日：1982-06-29

    申请号：US188919

    申请日：1980-09-19

    Applicant: Werner F. Votava

    Inventor： Werner F. Votava

    IPC: C03C3/087 ,  C03C8/02 ,  C03C8/08 ,  C03C8/16 ,  C03C10/00 ,  C03C10/04 ,  C04B33/13 ,  C03C5/00 ,  C03C3/04 ,  C03C3/22 ,  C04B33/00

    CPC classification number: C03C8/08 ,  C03C10/0009 ,  C03C8/02 ,  C04B33/13

    Abstract: A process for producing feldspathic sanitary ware and the end product are disclosed in which a fluxing amount of a glass frit is used in the ceramic slip used to cast the sanitary ware. The frit contains both deflocculent oxides and flocculent alkaline earths which are leachable from the frit when it is placed in the ceramic slip. The deflocculent oxides counterbalance the effect of the flocculent alkaline earths to the extent they are respectively leached from the frit upon dispersal in a ceramic slip and maintain the slip at a workable viscosity. Upon casting and firing the slip, the present frit precipitates fine crystals of diopside having an average particle size of less than one micron which are particularly useful in lowering the firing temperature of feldspathic bodies by promoting the required degree of vitrification at lower temperatures than heretofore possible.

    Abstract translation: 公开了一种用于生产长寿命卫生洁具的方法和最终产品，其中在用于铸造卫生洁具的陶瓷片中使用玻璃料的助熔剂量。 玻璃料含有两种去絮状氧化物和絮状碱土金属，当它们放置在陶瓷片中时，可从玻璃料中浸出。 絮状氧化物抵消絮凝碱土的影响，其分散在玻璃料中，并在陶瓷滑移中分散浸出，并将滑移保持在可行的粘度。 当铸造和烧制滑移时，本发明的玻璃料沉淀出平均粒径小于1微米的透辉石的细晶体，这在特定的温度范围内可以通过在比以前更低的温度下促进所需的玻璃化程度来降低长寿命体的烧制温度 。

    Vitroceramic materials and process of making the same
    97.
    发明授权
    Vitroceramic materials and process of making the same 失效
    陶瓷材料和制造过程相同

    公开(公告)号：US4043821A

    公开(公告)日：1977-08-23

    申请号：US709430

    申请日：1976-07-28

    Applicant: Eugene Le Bras

    Inventor： Eugene Le Bras

    IPC: C03C10/04 ,  C03C10/00 ,  C03C3/22

    CPC classification number: C03C10/0009 ,  C03C10/0036

    Abstract: A vitroceramic product which is economical to produce and has excellent resistance to bending and abrasion comprising at least 90% by weight of said product of the following ingredients expressed in percent by weight thereof;SiO.sub.2 + Al.sub.2 O.sub.3 + B.sub.2 O.sub.3 in from 40 to 50%, iron oxide in from 16 to 30%, and CaO + MgO in from 24 to 40%; the sum of the Al.sub.2 O.sub.3 + B.sub.2 O.sub.3 being from 2 to 15 percent and the product including at least 0.5% by weight of nucleus forming agent.

    Abstract translation: 经济地生产并具有优异的抗弯曲和磨损性的陶瓷制品，其包含至少90重量％的以重量百分数表示的以下成分的所述产物; 40〜50％的SiO 2 + Al 2 O 3 + B 2 O 3，16〜30％的氧化铁，24〜40％的CaO + MgO。 Al 2 O 3 + B 2 O 3的总和为2至15％，产物包含至少0.5重量％的成核剂。

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