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    • 2. 发明专利
    • Laminated piezoelectric ceramic element and a method of manufacturing the same
    • 空值
    • JP5103859B2
    • 2012-12-19
    • JP2006279585
    • 2006-10-13
    • 株式会社デンソー
    • 聡司 鈴木弘貴 久保田
    • H01L41/083C04B35/493H01L41/187H01L41/22H01L41/273H01L41/297H01L41/39H02N2/00
    • B32B18/00C04B35/493C04B2235/3213C04B2235/3225C04B2235/3241C04B2235/3251C04B2235/3255C04B2235/3265C04B2235/5436C04B2235/5445C04B2235/768C04B2237/346H01L41/0471H01L41/0477H01L41/1876H01L41/273
    • Stacked piezoceramic element (Q), comprises piezoceramic layers (11) and inner electrode layers (12, 13) that are alternately stacked upon the piezoceramic layers; where: each of the inner electrode layers consists of an electrically conductive metal and a material of lead zirconate titanate (PZT) family with a B1-site substituent, in which 0.1-1 mol.% of a B1-site element of the PZT material, depicted by a basic composition (Q1) is substituted by at least a bivalent or trivalent transitional metal element M; and each of the piezoceramic layers are composed of a main component. Stacked piezoceramic element (Q), comprises piezoceramic layers (11) and inner electrode layers (12, 13) that are alternately stacked upon the piezoceramic layers; where: each of the inner electrode layers consists of an electrically conductive metal and a material of lead zirconate titanate (PZT) family with a B1-site substituent, in which 0.1-1 mol.% of a B1-site element of the PZT material, depicted by a basic composition (Q1) with a formula (AB1O 3) is substituted by at least a bivalent or trivalent transitional metal element M; and each of the piezoceramic layers are composed of a main component, which is made up of the PZT material, in which the B1-site element is not substituted. An independent claim is included for a process for obtaining (Q) comprising fabrication of the non-sintered and molded ceramic layers (green body) (15) containing a first ceramic raw material, which after a sintering step forms the material of the PZT family of piezoceramic layers; fabrication of an electrode material by mixing an electrically conductive metal powder and a second ceramic raw material, which after a sintering step forms the material of the PZT family with B-site substituent of the inner electrode layers; application of the electrode material on each of the non-sintered and molded ceramic layers; stacking of the non-sintered and molded ceramic layers that are coated with the electrode material, so as to form an intermediate stacked structure; and sintering of the intermediate stacked structure, where the step of making the electrode material uses a second ceramic raw material comprising at least one of the following alternatives: a composite material composed of an initial material mixture containing ceramic raw materials, which are blended in a mixing ratio that forms the material of the PZT family in a specified composition after a sintering step, an oxidative product of the transition metal element M, which is added to the initial material mixture in a mixing ratio of 0.1-1 mol.% of a B-site element of the material of PZT family to be substituted by the transition metal element M, a calcined composite material of a initial material powder, which is composed of a calcined initial material powder that was obtained by calcinations and powdering of the composite material, and a calcined raw material powder composite, which consists of a calcined raw material powder, by calcination of raw material mixture and powder, and an oxide product of the transition metal element M together in a mixing ratio mixed, which allows 0.1-1 mol.% of the B-site element of the material PZT family to be substituted by the transition metal element M.
    • 堆叠压电陶瓷元件(Q)包括交替堆叠在压电陶瓷层上的压电陶瓷层(11)和内电极层(12,13) 其中:每个内部电极层由导电金属和具有B1位置取代基的锆钛酸铅(PZT)族的材料组成,其中0.1-1mol%的PZT材料的B1位点元素 由基本组成(Q1)表示的至少一种二价或三价过渡金属元素M代替; 并且每个压电陶瓷层由主要组分组成。 堆叠压电陶瓷元件(Q)包括交替堆叠在压电陶瓷层上的压电陶瓷层(11)和内电极层(12,13) 其中:每个内部电极层由导电金属和具有B1位置取代基的锆钛酸铅(PZT)族的材料组成,其中0.1-1mol%的PZT材料的B1位点元素 由具有式(AB 1 O 3)的碱性组合物(Q1)所示,被至少二价或三价过渡金属元素M取代; 并且每个压电陶瓷层由主要成分组成,该主要成分由未取代B1位点元素的PZT材料构成。 包括用于获得(Q)的方法的独立权利要求,包括制造包含第一陶瓷原料的非烧结和模制陶瓷层(生坯)(15),其在烧结步骤之后形成PZT族的材料 的压电陶瓷层; 通过混合导电金属粉末和第二陶瓷原料来制造电极材料,其在烧结步骤之后形成具有内部电极层的B位取代基的PZT族材料; 在每个非烧结和模制陶瓷层上施加电极材料; 堆叠涂覆有电极材料的非烧结和模制的陶瓷层,以形成中间堆叠结构; 以及中间层叠结构的烧结,其中制造电极材料的步骤使用包含以下替代物中的至少一种的第二陶瓷原料:由含有陶瓷原料的初始混合物组成的复合材料, 在烧结步骤之后,在特定组合物中形成PZT族的材料的混合比,过渡金属元素M的氧化产物以0.1-1mol%的混合比添加到初始材料混合物中 由过渡金属元素M代替的PZT族材料的B位元素,初始材料粉末的煅烧复合材料,其由煅烧的初始材料粉末组成,其通过煅烧和粉碎复合材料 和煅烧原料粉末复合体,其由煅烧原料粉末,原料混合物和粉末的煅烧和o 过渡金属元素M的xide产物以混合比混合在一起,其允许0.1-1mol%的材料PZT族的B位元素被过渡金属元素M取代。