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    • 5. 发明专利
    • Method of producing ceramic foams
    • IL125855D0
    • 1999-04-11
    • IL12585598
    • 1998-08-19
    • TECHNION R & D FOUNDATION LTD
    • C04B38/02C04B38/00C04B
    • A process for foaming ceramic foams, in which the ceramic foams are produced from a precursor or a mixture of precursors which contain at least one ceramic-forming element and liberates at least one volatile reaction product during an inorganic gelation process. In one embodiment, foaming is based on a precursor containing crystals of the AlCl3(Pri2O) complex. The decomposition of the initial precursor produces polymerizing species dissolved in liquid isopropyl chloride. The solvent and growing AlOxCly(OPri)z species are mixed homogeneously so that the boiling point of the solution is raised above the boiling point of the pure isopropyl chloride. Polymerization takes place in the liquid until a critical polymer size is attained, whereupon a phase separation into polymer rich and solvent rich regions occurs. Since the expelled solvent is suddenly above its boiling point, bubbles start forming instantly. Foam stabilization takes place as a result of gelation in the polymer rich regions which comprise the cell walls in the foam. The net result of the process is a gelled ultra light foam.
    • 7. 发明申请
    • ADHESIVE MICROSTRUCTURE
    • 粘合微结构
    • WO2013069013A1
    • 2013-05-16
    • PCT/IL2012/050445
    • 2012-11-08
    • TECHNION R&D FOUNDATION lTD.CHRISTIAN-ALBRECHTS-UNIVERSITAT ZU KIEL
    • VARENBERG, MichaelGORB, Stanislav
    • C09J7/00B82Y30/00
    • C09J7/10
    • A microstructure made of flexible material includes a plurality of projections extending from a common substrate. A distal end of each projection includes a resilient flap. All lateral dimensions of each of the projections increase monotonically with increased distance from a surface defined by distal ends of the flaps when the flaps are unbent. Each of the projections extends from the common substrate in a general direction that is locally substantially perpendicular to the surface defined by the ends of the flaps. When a shear force is applied to each of the flaps by relative motion between the flap and a cooperating surface in contact with the flap, the flap bends so as to increase the area of contact of that flap with the cooperating surface, affecting adhesion between the microstructure and the cooperating surface.
    • 由柔性材料制成的微结构包括从共同的衬底延伸的多个突起。 每个突起的远端包括弹性翼片。 每个突起的所有横向尺寸随着襟翼不弯曲时从与翼片的远端限定的表面的距离增加而单调增加。 每个突起从共同的基板延伸,其大致方向基本上垂直于由翼片的端部限定的表面。 当通过翼片与与翼片接触的协作表面之间的相对运动将剪切力施加到每个翼片时,翼片弯曲以增加该翼片与协作表面的接触面积,从而影响 微结构和配合表面。