公开(公告)号：US20050218380A1

公开(公告)日：2005-10-06

申请号：US11086907

申请日：2005-03-23

申请人： Hansjoerg Gramespacher ,  Michael Hagemeister ,  Petra Kluge-Weiss ,  Felix Greuter ,  Lise Donzel ,  Reto Kessler

发明人： Hansjoerg Gramespacher ,  Michael Hagemeister ,  Petra Kluge-Weiss ,  Felix Greuter ,  Lise Donzel ,  Reto Kessler

IPC分类号： C04B14/04 ,  H01C7/00 ,  H01C7/10 ,  H01C7/112 ,  H01C17/065

CPC分类号： B82Y30/00 ,  H01C7/1006 ,  H01C7/112 ,  H01C17/06546 ,  H01C17/06586

摘要： The invention relates to a nonlinear electrical material with improved microvaristor filler (1′), to devices and electrical apparatuses comprising such nonlinear electrical material and to a production method thereof. According to invention, the filler (1′) comprises larger spherical particles (5) and smaller irregular particles (6) that are arranged interstitially and provide non-point-like and/or multiple contact areas (56, 56a, 56b, 66) owing to their irregular outer shape comprising edges and faces. Embodiments, among other things, relate to: spherical particles (5) being calcinated and broken-up to retain their original shape; irregular, spikly shaped, particles (6) obtained by calcinating or sintering and crushing or fracturing granules or blocks; and addition of a third filler fraction. Advantages, among others, are: higher filler contents, more and more durable inter-particle contacts (56, 56a, 56b, 66), enlarged effective micro-contact area, and improved electrical performance of the nonlinear electrical material.

摘要翻译： 本发明涉及具有改进的微电阻填料（1'）的非线性电气材料，涉及包含这种非线性电气材料的装置和电气设备及其制造方法。 根据本发明，填料（1'）包括较大的球形颗粒（5）和较小的不规则颗粒（6），它们间隙布置并提供非点状和/或多个接触区域（56,56a，56b， 由于其不规则的外形包括边缘和面部。 实施例尤其涉及：球形颗粒（5）被煅烧和分解以保持其原始形状; 通过煅烧或烧结获得的颗粒（6），破碎或压碎颗粒或块; 并加入第三填料部分。 优点包括：较高的填料含量，越来越耐用的颗粒间接触（56,56a，56b，66），扩大的有效微接触面积和改善的非线性电气材料的电性能。