AlN sintered body having high thermal conductivity and a method of
fabricating the same
    2.
    发明授权
    AlN sintered body having high thermal conductivity and a method of fabricating the same 失效
    具有高导热性的AlN烧结体及其制造方法

    公开(公告)号:US4847221A

    公开(公告)日:1989-07-11

    申请号:US142818

    申请日:1988-01-11

    IPC分类号: C04B35/581

    CPC分类号: C04B35/581

    摘要: According to the present invention, there is provided an aluminum nitride sintered body having a high thermal conductivity and essentially consisting of a AlN single-phase, containing 0.01 to 8,000 ppm of rare earth elements and less than 2,000 ppm of oxygen. According to the present invention, there is provided a method of fabricating an aluminum nitride sintered body having a high thermal conductivity and essentially consisting of AlN single-phase, containing 0.01 to 8,000 ppm of rare earth elements and less than 2,000 ppm of oxygen, wherein a molded body prepared by mixing and molding an aluminum nitride power having less than 7 wt % of oxygen and an average particle size of 0.05 to 5 .mu.m and with rare earth compounds of 0.01 to 15 wt % of based on rare earth elements content, or a sintered AlN body containing oxide grain boundary phases of 0.01 to 15 wt % of rare earth elements and 0.01 to 20 wt % of oxygen and (rare earth element)--Al--O compounds phases and/or (rare earth element)--O compounds phases, is fired in a reducing atmosphere at a temperature of 1,550 to 2,050.degree. C. for 4 hours or more.

    摘要翻译: 根据本发明,提供了一种具有高导热性且基本上由含有0.01至8,000ppm的稀土元素和小于2,000ppm的氧的AlN单相组成的氮化铝烧结体。 根据本发明,提供一种制造具有高导热性且基本由AlN单相组成的氮化铝烧结体的方法,该AlN单相含有0.01至8,000ppm的稀土元素和小于2,000ppm的氧,其中 通过将少于7重量%的氧和平均粒径为0.05〜5μm的氮化铝粉末和基于稀土元素含量为0.01〜15重量%的稀土类化合物混合成型而制备的成型体, 或含有0.01〜15重量%的稀土元素和0.01〜20重量%的氧和(稀土元素)-Al-O化合物相和/或(稀土元素)-Oi的氧化物晶界相的烧结AlN体 化合物相在1550〜2050℃的温度下在还原气氛中烧成4小时以上。

    Aluminum nitride-based sintered body of high thermal conductivity
    3.
    发明授权
    Aluminum nitride-based sintered body of high thermal conductivity 失效
    具有高导热性的氮化铝基烧结体

    公开(公告)号:US4766097A

    公开(公告)日:1988-08-23

    申请号:US51237

    申请日:1987-05-14

    IPC分类号: C04B35/581 C04B35/58

    CPC分类号: C04B35/581

    摘要: An aluminum nitride-based sintered body having a high thermal conductivity and a total oxygen content of 0.01 to 20% by weight which is prepared by mixing a main component of aluminum nitride powder containing 0.001 to 7% by weight of oxygen with 0.01 to 15% by weight of at least one of the group consisting of a powder of a rare earth element and/or a powder of a material containing the rare earth element (said 0.01 to 15% by weight being counted on the basis of the content of the rare earth element), and sintering said powder mixture.

    摘要翻译: 通过将含有0.001〜7重量%的氧的氮化铝粉末的主成分与0.01〜15重量%的氧混合而制备的具有高导热性和总氧含量为0.01〜20重量%的氮化铝系烧结体, 的稀土元素粉末和/或含有稀土元素的材料的粉末中的至少一种(0.01〜15重量%,以稀有元素的含量为基准计算) 土元素),并烧结所述粉末混合物。

    Aluminum nitride sintered body
    4.
    发明授权
    Aluminum nitride sintered body 失效
    氮化铝烧结体

    公开(公告)号:US5001089A

    公开(公告)日:1991-03-19

    申请号:US402844

    申请日:1989-09-06

    IPC分类号: C04B35/581

    CPC分类号: C04B35/581

    摘要: There is disclosed an aluminum sintered body prepared by sintering aluminum nitride and additives, which consists essentially of(a) aluminum nitride,(b) at least one compound selected from the group consisting of an aluminum compound of a rare earth metal, an aluminum compound of an alkaline earth metal, and an aluminum compound of a rare earth metal and an alkaline earth metal, and(c) at least one element selected from the transition elements consisting of Groups IVa, Va, VIa, VIIa and VIII of the periodic table, and/or at least one compound comprising the element, and the rare earth element, alkaline earth element and transition element are supplied by the additives.

    摘要翻译: 公开了通过烧结氮化铝和添加剂制备的铝烧结体,其主要由(a)氮化铝,(b)至少一种选自由稀土金属的铝化合物,铝化合物 碱土金属的铝化合物和稀土金属和碱土金属的铝化合物,和(c)选自周期表第Ⅳa,Ⅴa,Ⅵa,Ⅶa和Ⅷ族的过渡元素中的至少一种元素 ,和/或至少一种包含元素的化合物,稀土元素,碱土金属元素和过渡元素由添加剂提供。

    Aluminum nitride sintered body and preparation thereof
    5.
    发明授权
    Aluminum nitride sintered body and preparation thereof 失效
    氮化铝烧结体及其制备方法

    公开(公告)号:US4883780A

    公开(公告)日:1989-11-28

    申请号:US157150

    申请日:1988-02-11

    IPC分类号: C04B35/58 C04B35/581

    CPC分类号: C04B35/581

    摘要: There are disclosed an aluminum sintered body comprising(a) aluminum nitride,(b) at least one compound selected from the group consisting of an aluminum compound of a rare earth metal, an aluminum compound of an alkaline earth metal, and an aluminum compound of a rare earth metal and an alkaline earth metal, and(c) at least one element selected from the transition elements consisting of Groups IVa, Va, VIa, VIIa and VIII of the periodic table, and/or at least one compound containing said element,and a process for preparing the same comprising mixing aluminum nitride with(i) at least one of compound selected from the group consisting of a rare earth metal and/or an alkaline earth metal; and(ii) at least one of element selected from the group consisting of a transition element of Groups IVa, Va, VIa, VIIa and VIII of the periodic table, and/or at least one of a compound containing said element;and then molding and sintering the mixture.

    摘要翻译: 公开了一种铝烧结体,其包含(a)氮化铝,(b)至少一种选自稀土金属的铝化合物,碱土金属的铝化合物和铝化合物的化合物 稀土金属和碱土金属,和(c)选自元素周期表第Ⅳa,Ⅴa,Ⅵa,Ⅶa和Ⅷ族的过渡元素中的至少一种元素,和/或含有所述元素的至少一种化合物 和其制备方法包括将氮化铝与(i)选自稀土金属和/或碱土金属的化合物中的至少一种化合物混合; 和(ii)选自元素周期表第Ⅳa,Ⅴa,Ⅵa,Ⅶa和Ⅷ族的过渡元素的元素中的至少一种,和/或含有所述元素的化合物中的至少一种; 然后成型和烧结混合物。

    Aluminum nitride sintered body and process for producing the same
    6.
    发明授权
    Aluminum nitride sintered body and process for producing the same 失效
    氮化铝烧结体及其制造方法

    公开(公告)号:US4746637A

    公开(公告)日:1988-05-24

    申请号:US760772

    申请日:1985-07-31

    IPC分类号: C04B35/581 C04B35/58

    CPC分类号: C04B35/581

    摘要: Disclosed are an aluminum nitride sintered body comprising aluminum nitride, rare earth element-aluminum compounds and alkaline earth metal-aluminum compounds, and a process for producing an aluminum nitride sintered body, which comprises adding to aluminum nitride powder:(a) powder of at least one compound selected from the group consisting of rare earth element oxides, rare earth element fluorides and compounds capable of being converted into these oxides or fluorides by calcination, and(b) powder of at least one compound selected from the group consisting of alkaline earth metal oxides, alkali earth metal fluorides and compounds capable of being converted into these oxides or fluorides by calcination, in a total amount of 0.01 to 20 wt % as calculated on the weight of the oxides or the fluorides, and then molding and sintering the resultant mixture.

    摘要翻译: 公开了一种包含氮化铝,稀土元素 - 铝化合物和碱土金属 - 铝化合物的氮化铝烧结体,以及一种制造氮化铝烧结体的方法,其包括向氮化铝粉末中加入:(a) 选自稀土元素氧化物,稀土元素氟化物和能够通过煅烧转化为这些氧化物或氟化物的化合物中的至少一种化合物,和(b)至少一种选自碱土金属的化合物的粉末 金属氧化物,碱土金属氟化物和能够通过煅烧转化为这些氧化物或氟化物的化合物,其总量按照氧化物或氟化物的重量计算为0.01〜20重量%,然后成型和烧结所得物 混合物。

    Silicon carbide sintered body and method of manufacturing the same
    8.
    发明授权
    Silicon carbide sintered body and method of manufacturing the same 失效
    碳化硅烧结体及其制造方法

    公开(公告)号:US4853299A

    公开(公告)日:1989-08-01

    申请号:US903141

    申请日:1986-09-03

    IPC分类号: C04B35/565

    CPC分类号: C04B35/565 Y10S264/36

    摘要: A silicon carbide sintered body containing not less than 0.03% by weight of boron, a total of not more than 0.3% by weight of metallic element impurities including the boron, not more than 1.0% by weight of free carbon, a total of not more than 0.15% by weight of non-metal impurities other than the free carbon, and the balance essentially consisting of silicon carbide, and having a density of not less 3.10 g/cm.sup.3. The sintered body is manufactured by heating a molding of a mixture containing a silicon carbide powder, a boron-containing sintering assistant, and a carbon-containing oxygen scavenger to a sintering temperature. The molded body is maintained at a temperature lower than the sintering temperature during the heating process until an oxide film covering the silicon carbide powder is substantially removed by the oxygen scavenger, and the molded body is then sintered at the sintering temperature under a non-pressurized condition.

    摘要翻译: 含有不少于0.03重量%的硼,总计不超过0.3重量%的包含硼的金属元素杂质,不超过1.0重量%游离碳的碳化硅烧结体,总计不超过 超过0.15重量%的除游离碳以外的非金属杂质,余量基本上由碳化硅组成,密度不小于3.10g / cm 3。 通过将含有碳化硅粉末,含硼烧结助剂和含碳氧清除剂的混合物的成型加热至烧结温度来制造烧结体。 成型体在加热过程中保持在低于烧结温度的温度,直到氧清除剂基本上除去覆盖碳化硅粉末的氧化膜,然后在未加压的烧结温度下将成型体烧结 条件。

    Method for producing powder of .alpha.-silicon nitride
    10.
    发明授权
    Method for producing powder of .alpha.-silicon nitride 失效
    生产α-氮化硅粉末的方法

    公开(公告)号:US4264565A

    公开(公告)日:1981-04-28

    申请号:US121095

    申请日:1980-02-13

    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。