公开(公告)号：US6023006A

公开(公告)日：2000-02-08

申请号：US68559

申请日：1998-05-20

Applicant: Olivier Fiquet ,  Yves Croixmarie

Inventor： Olivier Fiquet ,  Yves Croixmarie

IPC: C04B35/447 ,  G21F9/30 ,  G21F9/00 ,  C01B25/12

CPC classification number: C04B35/447 ,  G21F9/302

Abstract: The invention relates to a method of manufacturing compounds of the Monazite type, doped or not doped with actinides, to a method of packaging radioactive waste, high in actinides and in lanthanides by incorporating this waste in a confining matrix based on Monazite, and to a block for the packaging of radioactive waste that includes a Monazite matrix containing the radioactive elements. This method includes mixing, in the solid phase, reactants comprising an inactive compound of the lanthanide metaphosphate type Ln (PO.sub.3).sub.3 and one or more lanthanide oxides and/or one or more compounds capable of reacting with this oxide or these oxides during a thermal sintering process; the shaping of the mixture thus obtained, and the reaction sintering of said formed mixture, as a result of which a Monazite or a compound of the Monazite type is obtained.

Abstract translation: PCT No.PCT / FR96 / 01829 Sec。 371日期：1998年5月20日 102（e）日期1998年5月20日PCT 1996年11月19日PCT公布。 第WO97 / 19034号公报 日期1997年5月29日本发明涉及一种制造掺杂或未掺杂锕系元素的独居石型化合物的方法，该方法包括放射性废物，高锕系元素和镧系元素的方法，该方法是将该废物掺入基于独居石的约束基质 以及包括含有放射性元素的独居石基质的放射性废物的封闭体。 该方法包括在固相中混合包含镧系元素偏磷酸盐型Ln（PO3）3的惰性化合物和一种或多种镧系元素氧化物的反应物和/或一种或多种能够在热过程中与该氧化物或这些氧化物反应的化合物 烧结工艺; 由此获得的混合物的成形以及所形成的混合物的反应烧结，结果获得了独居石或独居石型的化合物。

公开(公告)号：US5980980A

公开(公告)日：1999-11-09

申请号：US959771

申请日：1997-10-29

Applicant: Robert A. DiChiara, Jr. ,  Robert A. Jurf

Inventor： Robert A. DiChiara, Jr. ,  Robert A. Jurf

IPC: C04B35/447 ,  B32B35/00 ,  C09D1/00

CPC classification number: C04B35/447

Abstract: A ceramic composition for the repair of porous ceramic bodies comprises a ceramic material having cations which are reactive with phosphate ions, a source of reactive phosphate ions, and filler. An aqueous slurry of the ceramic composition is prepared and applied to the damaged region of a porous ceramic body. The slurry mixture is dried within the damaged region of the porous ceramic body and heated to bind the mixture together and to bond the mixture to the porous ceramic body within the damaged region. The method of the invention allows for the in situ repair of ceramic materials without removing them from their supporting structure and can be used in the repair of ceramic tiles for spacecraft and aircraft.

Abstract translation: 用于修复多孔陶瓷体的陶瓷组合物包括具有与磷酸根离子反应的阳离子，反应性磷酸根离子源和填料的陶瓷材料。 制备陶瓷组合物的水性浆液并将其施加到多孔陶瓷体的损伤区域。 将浆料混合物在多孔陶瓷体的受损区域内干燥并加热以将混合物粘合在一起，并将混合物粘合到受损区域内的多孔陶瓷体上。 本发明的方法允许陶瓷材料的原位修复而不将它们从其支撑结构上移除，并且可以用于修复用于航天器和飞机的瓷砖。

公开(公告)号：US5858318A

公开(公告)日：1999-01-12

申请号：US757849

申请日：1996-11-27

Applicant: Ping Luo

Inventor： Ping Luo

IPC: C01B25/32 ,  C04B35/447 ,  C04B35/622

CPC classification number: C01B25/325 ,  C04B35/447 ,  C04B35/622

Abstract: Methods are provided for producing non-porous controlled morphology hydroxyapatite granules of less than 8 .mu.m by a spray-drying process. Solid or hollow spheres or doughnuts can be formed by controlling the volume fraction and viscosity of the slurry as well as the spray-drying conditions. Methods of providing for homogenous cellular structure hydroxyapatite granules are also provided. Pores or channels or varying size and number can be formed by varying the temperature at which a hydroxyapatite slurry formed in basic, saturated ammonium hydroxide is spray-dried. Methods of providing non-porous controlled morphology hydroxyapatite granules in ammonium hydroxide are also provided. The hydroxyapatite granules and bulk materials formed by these methods are also provided.

Abstract translation: 提供了通过喷雾干燥方法生产小于8μm的无孔受控形态的羟基磷灰石颗粒的方法。 可以通过控制浆料的体积分数和粘度以及喷雾干燥条件来形成固体或中空球体或甜甜圈。 还提供了提供均质细胞结构羟基磷灰石颗粒的方法。 可以通过改变在碱性饱和氢氧化铵中形成的羟基磷灰石浆料喷雾干燥的温度来形成孔或通道或变化的尺寸和数量。 还提供了在氢氧化铵中提供无孔受控形态的羟基磷灰石颗粒的方法。 还提供了通过这些方法形成的羟基磷灰石颗粒和散装材料。

公开(公告)号：US5403519A

公开(公告)日：1995-04-04

申请号：US086515

申请日：1993-07-01

Applicant: Hermann L. Rittler

Inventor： Hermann L. Rittler

IPC: C01B25/26 ,  C03C3/17 ,  C03C11/00 ,  C04B35/447 ,  C04B38/00 ,  C08G79/00 ,  C09K21/04 ,  F21V9/00 ,  C01B15/16 ,  C01F1/00 ,  F21V9/04

CPC classification number: C04B38/0022 ,  C03C3/17 ,  C04B35/447 ,  C08G79/00 ,  C04B2111/00844 ,  C04B2111/80

Abstract: There is disclosed an amorphous, polymeric material that contains phosphorous, aluminum and carbon atoms, and that is the reaction product of a buffered liquid mixture of a source of phosphorous, such as 85% phosphoric acid, a source of aluminum, such as boehmite, and an organic liquid buffer, such as a carboxylic acid. The polymeric material may be converted to a glassy or crystalline solid by heating to a temperature of at least 150.degree. C., and may be cellulated.

Abstract translation: 公开了一种含有磷，铝和碳原子的无定形聚合物材料，也就是磷源的缓冲液体混合物如85％磷酸，铝源如勃姆石， 和有机液体缓冲剂，如羧酸。 通过加热到至少150℃的温度，可以将聚合物材料转化为玻璃状或结晶固体，并且可以进行细胞化。

公开(公告)号：US5306673A

公开(公告)日：1994-04-26

申请号：US752605

申请日：1991-08-15

Applicant: Leif Hermansson ,  Sevald Forberg ,  Li Jiangou

Inventor： Leif Hermansson ,  Sevald Forberg ,  Li Jiangou

IPC: A61K6/033 ,  A61L27/00 ,  A61L27/42 ,  C04B35/10 ,  C04B35/117 ,  C04B35/119 ,  C04B35/447 ,  C04B35/46 ,  C04B35/48 ,  C04B35/488 ,  C04B35/49 ,  C04B35/63 ,  C04B35/645

CPC classification number: A61L27/427 ,  C04B35/117 ,  C04B35/119 ,  C04B35/46 ,  C04B35/488 ,  C04B35/49 ,  C04B35/6313 ,  C04B35/6455

Abstract: The present invention relates to a method to manufacture a composite ceramic material having a high strength combined with bioactive properties, when the material is used as a dental or orthopedic implant, which includes preparing a powder mixture, mainly comprising partly a first powder, which in its used chemical state will constitute a bioinert matrix in the finished material , and partly a second powder, mainly comprising a calcium phosphate-based material. The invention is characterized in that said first powder comprises at least one of the oxides belonging to the group consisting of titanium dioxide (TiO.sub.2), zirconium oxide (ZrO.sub.2) and aluminum oxide (Al.sub.2 O.sub.3), in that said second powder mainly comprises at least one of the compounds hydroxylapatite and tricalcium phosphate, in that a raw compact is made of said powder mixture and in that said raw compact is densified through an isostatic pressing in a hot condition (HIP) at a pressure higher than 50 MPa, a composite material being obtained, in which said matrix comprises one or several metal oxides of said first powder, in which matrix said compound hydroxylapatite and/or tricalcium phosphate is evenly dispersed.The invention also relates to a composite ceramic material as well as a body, completely or partially made of this material.

Abstract translation: PCT No.PCT / SE90 / 00207 Sec。 371日期1991年8月15日 102（e）1991年8月15日PCT 1990年3月30日PCT。本发明涉及一种制造具有高强度与生物活性的复合陶瓷材料的方法，当该材料用作牙科或矫形 植入物，其包括制备主要包含第一粉末的粉末混合物，所述第一粉末在其使用的化学状态下将在成品材料中构成生物质基质，部分地主要包含磷酸钙基材料的第二粉末。 本发明的特征在于，所述第一粉末包括属于由二氧化钛（TiO 2），氧化锆（ZrO 2）和氧化铝（Al 2 O 3）组成的组中的至少一种氧化物，其中所述第二粉末主要包括至少一种 的化合物羟磷灰石和磷酸三钙，其中原料由所述粉末混合物制成，并且所述原料压块通过在高于50MPa的压力下的热条件下的等静压力（HIP）致密化，复合材料为 其中所述基质包含所述第一粉末的一种或多种金属氧化物，其中基质所述化合物羟基磷灰石和/或磷酸三钙均匀分散。 本发明还涉及复合陶瓷材料以及完全或部分由该材料制成的主体。

公开(公告)号：US5240659A

公开(公告)日：1993-08-31

申请号：US857638

申请日：1992-03-24

Applicant: Takeshi Ichitsuka ,  Tetsuro Ogawa ,  Masaya Sumita ,  Akihiko Yokoo

Inventor： Takeshi Ichitsuka ,  Tetsuro Ogawa ,  Masaya Sumita ,  Akihiko Yokoo

IPC: A61F2/00 ,  A61L27/12 ,  C04B35/447 ,  C04B35/634

CPC classification number: C04B35/447 ,  A61L27/12 ,  C04B35/634 ,  A61F2310/00293

Abstract: An oriented shaped article of a calcium phosphate type compound is disclosed, in which at least two crystallographic axes of the primary particles of which the shaped article is composed each is oriented in one direction, respectively, in at least the surface of said article. A sinter of the oriented shaped article and a processes for producing the article and the sinter are also disclosed.

Abstract translation: 公开了一种磷酸钙型化合物的取向成型制品，其中至少两个成型制品的一次颗粒的结晶轴分别在至少所述制品的表面上沿一个方向取向。 还公开了定向成型制品的烧结体以及制造制品和烧结体的方法。

公开(公告)号：US5204319A

公开(公告)日：1993-04-20

申请号：US738307

申请日：1991-07-31

Applicant: Ryo Enomoto ,  Yoshimi Matsuno ,  Masato Yokoi

Inventor： Ryo Enomoto ,  Yoshimi Matsuno ,  Masato Yokoi

IPC: C04B35/447 ,  C04B35/80

CPC classification number: C04B35/447 ,  C04B35/803

Abstract: Calcium phosphate series compound ceramics are provided in which heat-resistant inorganic short fibers such as flawless SiC or Si.sub.3 N.sub.4 are three-dimensionally dispersed in a matrix composed of calcium phosphate series compound and entangled with each other to form a high strength shaped body as well as a method of producing the same. Also, a high density silicon carbide ceramic is provided in which biological glass is impregnated and filled in a porous shaped body. These composite ceramics have high strength and high toughness and are suitable as a heat-resistant structural material or a material for bio hard texture.

Abstract translation: 提供了一种磷酸钙系复合陶瓷，其中耐磨无机短纤维如无瑕疵的SiC或Si 3 N 4三维分散在由磷酸钙系列化合物组成的基质中并相互缠结以形成高强度成形体 其制造方法。 此外，提供了一种高密度碳化硅陶瓷，其中生物玻璃被浸渍并填充在多孔成形体中。 这些复合陶瓷具有高强度和高韧性，并且适合作为耐热结构材料或用于生物硬质地的材料。

公开(公告)号：US5128288A

公开(公告)日：1992-07-07

申请号：US627412

申请日：1990-12-14

Applicant: Tsuneaki Ohashi ,  Keiji Matsuhiro

Inventor： Tsuneaki Ohashi ,  Keiji Matsuhiro

IPC: C01B25/45 ,  C04B35/447

CPC classification number: C04B35/447 ,  C01B25/45

Abstract: A heat resistant, low expansion phosphate compound and sintered bodies thereof, having a composition of RZr.sub.4 P.sub.6 O.sub.24 (R is one or more cations of IIa group in the periodic table, such as Ba, Sr and Ca): an average thermal expansion coefficient between room temperature and 1,400.degree. C. of -10.about.+10.times.10.sup.-7 /.degree.C.; and having a high temperature type crystalline structure having R3c symmetry at room temperature. The sintered body of the invention can be manufactured by mixing and shaping starting materials, firing the resulting shaped body at 1,400.degree. C..about.1,700.degree. C. to provide a sintered body with a composition of RZr.sub.4 P.sub.6 O.sub.24 and then, keeping the obtained sintered body at a high temperature of not lower than a temperature of phase transition between a high temperature type and a low temperature type crystalline structure, followed by quenching.

Abstract translation: 具有RZr4P6O24组成的耐热，低膨胀的磷酸盐化合物及其烧结体（R是周期表中的IIa族的一种或多种阳离子，例如Ba，Sr和Ca）：室温下的平均热膨胀系数 和-100℃-10℃〜10℃/ 10℃。 并且在室温下具有R3c对称性的高温型晶体结构。 本发明的烧结体可以通过将原料混合和成形来制造，在1400℃的温度下烧结所得到的成型体，提供具有RZr4P6O24组成的烧结体，然后将得到的烧结体保持在 不低于高温型和低温型结晶结构之间的相变温度的高温，然后淬火。

公开(公告)号：US5102836A

公开(公告)日：1992-04-07

申请号：US533143

申请日：1990-06-06

Applicant: Jesse Brown ,  Deidre Hirschfeld ,  Dean-Mo Liu ,  Yaping Yang ,  Tingkai Li ,  Robert E. Swanson ,  Steven Van Aken ,  Jin-Min Kim

Inventor： Jesse Brown ,  Deidre Hirschfeld ,  Dean-Mo Liu ,  Yaping Yang ,  Tingkai Li ,  Robert E. Swanson ,  Steven Van Aken ,  Jin-Min Kim

IPC: C01B25/45 ,  C04B35/447

CPC classification number: C01B25/45 ,  C04B35/447

Abstract: Compositions having the general formula (Ca.sub.x Mg.sub.1-x)Zr.sub.4 (PO.sub.4).sub.6 where x is between 0.5 and 0.99 are produced by solid state and sol-gel processes. In a preferred embodiment, when x is between 0.5 and 0.8, the MgCZP materials have near-zero coefficients of thermal expansion. The MgCZPs of the present invention also show unusually low thermal conductivities, and are stable at high temperatures. Macrostructures formed from MgCZP are useful in a wide variety of high-temperature applications. In a preferred process, calcium, magnesium, and zirconium nitrate solutions have their pH adjusted to between 7 and 9 either before or after the addition of ammonium dihydrogen phosphate. After dehydration to a gel, and calcination at temperatures in excess of 850.degree. C. for approximately 16 hours, single phase crystalline MgCZP powders with particle sizes ranging from approximately 20 nm to 50 nm result. The MgCZP powders are then sintered at temperatures ranging from 1200.degree. C. to 1350.degree. C. to form solid macrostructures with near-zero bulk coefficients of thermal expansion and low thermal conductivities. Porous macrostructures of the MgCZP powders of the present invention are also formed by combination with a polymeric powder and a binding agent, and sintering at high temperatures. The porosity of the resulting macrostructures can be adjusted by varying the particle size of the polymeric powder used.

Abstract translation: 通过固体和溶胶 - 凝胶法制备具有通式（CaxMg1-x）Zr4（PO4）6，其中x在0.5和0.99之间的组合物。 在优选的实施方案中，当x在0.5和0.8之间时，MgCZP材料具有接近零的热膨胀系数。 本发明的MgCZP还显示出异常低的导热性，并且在高温下是稳定的。 由MgCZP形成的宏观结构可用于各种高温应用。 在优选的方法中，在加入磷酸二氢铵之前或之后，钙，镁和硝酸锆溶液的pH值调节至7至9。 脱水至凝胶，并在超过850℃的温度下煅烧约16小时，得到粒度范围约20nm至50nm的单相结晶MgCZP粉末。 然后将MgCZP粉末在1200℃至1350℃的温度范围内烧结，形成具有近零体积热膨胀系数和低热导率的固体宏观结构。 本发明的MgCZP粉末的多孔宏观结构也通过与聚合物粉末和粘合剂的组合以及在高温下烧结而形成。 可以通过改变所使用的聚合物粉末的粒度来调节所得宏观结构的孔隙率。

公开(公告)号：US5017518A

公开(公告)日：1991-05-21

申请号：US511814

申请日：1990-04-18

Applicant: Yasuhiko Hirayama ,  Tetsuro Ogawa ,  Satoshi Ojima

Inventor： Yasuhiko Hirayama ,  Tetsuro Ogawa ,  Satoshi Ojima

IPC: C04B38/00 ,  A61F2/00 ,  A61K6/033 ,  A61L27/00 ,  A61L27/12 ,  B01J20/04 ,  C04B35/447 ,  C04B38/04 ,  C04B41/53 ,  C04B41/91

CPC classification number: C04B35/447 ,  A61K6/0044 ,  A61K6/0085 ,  A61K6/0643 ,  A61L27/12 ,  B01J20/048 ,  B01J20/28078 ,  B01J20/3078 ,  B01J20/3085 ,  C04B38/04 ,  C04B41/009 ,  C04B41/5353 ,  C04B41/91 ,  A61F2310/00293

Abstract: A process for producing calcium phosphate ceramics having a porous surface is described, which comprise the steps of:a) preparing untreated calcium phosphate ceramics, which comprises a mixture of hydroxyapatite and tricalcium phosphate, andb) treating said untreated ceramics with an acidic solution to selectively dissolve the tricalcium phosphate in the surface of the ceramics.

Abstract translation: 描述了一种生产具有多孔表面的磷酸钙陶瓷的方法，其包括以下步骤：a）制备包括羟基磷灰石和磷酸三钙的混合物的未处理的磷酸钙陶瓷，和b）用酸性溶液处理所述未处理的陶瓷， 选择性地将磷酸三钙溶解在陶瓷表面。