【正文】 low material waste。通過陶瓷的注射成型來制造合成物型坯，之后使用型坯來形成大批生產(chǎn)，此種方法已經(jīng)證明用 于網(wǎng)狀大量制造壓電復合物傳感器。圖 6 所示復合材料樣品使用剛才復合的壓電陶瓷 /粘結(jié)劑混合物以及再生材料制造?？諝庵械木徛訜嵋呀?jīng)被發(fā)現(xiàn)是一個適合去除有機粘合劑的方法。如圖 2b 所示的方法使用了無需導致額外重組成本的嵌入式的并允許局部變化的設計。對于陶瓷，型腔必須無損拆除，迫使高的固體載荷，嚴格控 制型腔移除的過程，以及適當?shù)膴A具。注塑成型過程克服了通過網(wǎng)型預成型陶瓷纖維整列使裝配導向陶瓷纖維進入復合材料傳感器的困難。最近，纖維材料公司已經(jīng)證明了其用于纖維增強復合材料的編織技術在裝配壓電材料方面的適應性。檢漏器的性能系數(shù)可使得這個復合物超過那些通過適當選擇階段特征和復合結(jié)構(gòu)的固體材料 10000 倍。 附件 1：外文資料翻譯譯文 通過注射成型制造壓電陶瓷 /聚合物復合材料 摘要 賓夕法尼亞州立大學材料研究室 的研究已經(jīng)證明通過使用 壓電陶瓷 /聚合物復合材料 可以改進檢漏器 (水診器 )潛能。這些合成物已經(jīng)被開始用于高解析度超聲醫(yī)學以及海軍的發(fā)展應用。 在過去的五年里，為了提高制造行業(yè)的生存能力并降低材料成本已經(jīng)多次嘗試簡化傳感器的組裝工藝。然而，這種方法需要為每一個部分制造一個新的模具。 如圖 1 所示，注塑成型方法已被用于壓電陶瓷的成型。在聚合物封裝后采用磨削去除陶瓷胚。為了容許成型收縮，預加工的工件尺寸維持在50mmX50mm，以盡量減少在制模周期中的冷卻 部分折斷外層纖維的可能性。圖 5 所示近似網(wǎng)狀的成型方式用于制造非常精細尺度的型坯的能力；所示壓電元件的尺寸只有 30um。 *粉末的提供方是俄亥俄州貝德福德的摩根士丹利公司， 105A 街區(qū)。 [5] U. Bast, D. Cramer and A. Wolff著，《一種用來制造 13連通形壓電復合材料的新方法》， 第七屆 CIMTEC ， 意大利蒙特卡蒂尼， 6月 24至 30號 ， 1990年 ， . Vincenzini, Elsevier， 20212021頁 [6] G. Bandyopadhyay and K. W. French著，《網(wǎng)狀的 硅的氮化物應用于發(fā)動機的制造》，對渦輪增壓器轉(zhuǎn)自及動力， 108， 536539頁， 1986年出版 [7] J. Greim等著，《燒結(jié)注塑渦輪增壓轉(zhuǎn)子》，第三屆關于熱動力的陶瓷材料及構(gòu)造國際研討， 內(nèi)華達州拉斯維加斯 ， 13651375頁， Amer. Cer. Soc，1989年 附件 2：外文原文 FABRICATION OF PIEZOELECTRIC CERAMlClPOLYMER COMPOSITES BY INJECTION MOLDING. Abstract Research at the Materials Research Laboratory, Pennsylvania State University has demonstrated the potential for improving hydrophone performance using piezoelectric ceramic/polymer posites. As part of an ONRfunded initiative to develop costeffective manufacturing technology for these posites, Materials Systems is pursuing an injection molding ceramic fabrication approach. This paper briefly overviews key features of the ceramic injection molding process, then describes the approach and methodology being used to fabricate PZT ceramic/polymer posites. Properties and applications of injection molded PZT ceramics are pared with conventionally processed material. Introduction Piezoelectric ceramic/polymer posites offer design versatility and performance advantages over both single phase ceramic and polymer piezoelectric materials in both sensing and actuating applications. These posites have found use in high resolution medical ultrasound as well as developmental Navy applications. Many posite configurations have been constructed and evaluated on a laboratory scale over the past thirteen years. One of the most successful binations, designated 13 posite in Newnham’s notation [l 1, has a onedimensionally connected ceramic phase (PZT fibers) contained within a threedimensionally connected anic polymer phase. Hydrophone figures of merit for this posite can be made over 10,000 times greater than those of solid PZT ceramic by appropriately selecting the phase characteristics and posite structure. The Penn State posites were fabricated [ l ] by handaligning extruded PZT ceramic rods in a jig and encapsulating in epoxy resin, followed by slicing to the appropriate thickness and poling the ceramic. Aside from demonstrating the performance advantages of this material, the Penn State work highlighted the difficulties involved in fabricating 13 posites on a large scale, or even for prototype purposes. These are: 1) The requirement to align and support large numbers of PZT fibers during encapsulation by the polymer. 2) The high incidence of dielectric breakdown during poling arising from the significant probability of encountering one or more defective fibers in a typical large