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    • 10. 发明申请
    • PIEZOELECTRIC COMPOSITE MATERIAL
    • 压电复合材料
    • WO2008107624A1
    • 2008-09-12
    • PCT/GB2007/000755
    • 2007-03-05
    • THE UNIVERSITY OF BIRMINGHAMZHANG, DouMEGGS, CarlBUTTON, Timothy, WilliamDOLMAN, Geoffrey
    • ZHANG, DouMEGGS, CarlBUTTON, Timothy, WilliamDOLMAN, Geoffrey
    • H01L41/22
    • H01L41/37H01L41/183Y10T156/1044Y10T156/1052Y10T428/31504
    • The present invention provides a method for producing a composite material comprising an array of piezoelectric fibres, the method comprising: (a) providing: (al) a plurality of first strips comprising a piezoelectric material or a precursor to a piezoelectric material, and a first carrier, and (a2) a plurality of second strips comprising a decomposable material, and a second carrier; (b) placing said pluralities of said first and second strips alternately on top of one another to form a stack in which at least a portion of said first strips is separated from adjacent first strips by a second strip; (c) a heating step comprising heating said stack to remove said first and second carriers and said decomposable material; (d) impregnating said stack with a filler material to form a composite stack of piezoelectric strips; and (e) cutting said stack to form a composite material comprising an array of piezoelectric fibres. In an alternative method the cutting (e) is performed before the heating step (c). The methods allow for the production of fibre arrays with mean fibre spacing of 5ym or less.
    • 本发明提供一种复合材料的制造方法,该复合材料包括压电纤维阵列,所述方法包括:(a)提供:(a1)包括压电材料或压电材料的前体的多个第一条带和第一 载体,和(a2)包含可分解材料的多个第二条带和第二载体; (b)将所述多个所述第一和第二条交替地放置在彼此之上以形成堆叠,其中所述第一条带的至少一部分与相邻的第一条带通过第二条带分离; (c)加热步骤,包括加热所述堆叠以除去所述第一和第二载体和所述可分解材料; (d)用填充材料浸渍所述堆叠以形成压电条的复合叠层; 和(e)切割所述叠层以形成包含压电纤维阵列的复合材料。 在替代方法中,切割(e)在加热步骤(c)之前进行。 该方法允许生产平均纤维间距为5μm或更小的纤维阵列。