COMPOSITE CERAMIC MATERIAL AND METHOD TO MANUFACTURE THE MATERIAL
    3.
    发明申请
    COMPOSITE CERAMIC MATERIAL AND METHOD TO MANUFACTURE THE MATERIAL 审中-公开
    复合陶瓷材料及其制造方法

    公开(公告)号:WO1990011979A1

    公开(公告)日:1990-10-18

    申请号:PCT/SE1990000207

    申请日:1990-03-30

    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 (TiO2), zirconium oxide (ZrO2) and aluminum oxide (Al2O3), 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: 本发明涉及当材料用作牙科或矫形植入物时,制造具有高强度与生物活性的复合陶瓷材料的方法,其包括制备主要包含第一粉末的粉末混合物, 其使用的化学状态将在成品材料中构成生物质基质,部分构成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 的化合物羟基磷灰石和磷酸三钙,其中原料压块由所述粉末混合物制成,并且所述原料压块通过在高于50MPa的压力下在热条件下进行等静压而致密化,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。

Patent Agency Ranking