Development of Test and Theoretical Research Methods of Properties of the New Piezoceramic Composites and Devices with Investigation Their Applications for Underwater Acoustic Multimedia Communication-3

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簡歷

基本資料

Project title

Code/計畫編號

NSC99-2923-E022-001-MY3

Translated Name/計畫中文名

新壓電陶瓷複合物特性在水下聲波多媒體通訊的理論研究與檢測開發-3

Project Coordinator/計畫主持人

Chin-Feng Lin

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

張順雄
吳景凱
卜一宇
楊誌欽

Department/Unit

National Kaohsiung University of Science and Technology, NKUST

Website

https://www.grb.gov.tw/search/planDetail?id=2386571

Year

2012

Start date/計畫起

01-08-2012

Expected Completion/計畫迄

01-07-2013

Bugetid/研究經費

650千元

ResearchField/研究領域

電信工程
材料科技
電子電機工程

Description

Abstract

在這個申請案，我們將發展多孔壓電陶瓷不同連接特性之實驗理論方法與模型，並且將矽有機和矽化合物應用在水下麥克風元件。一個數值實現的修正方法將會被發展去定義多孔壓電陶瓷兼容的材料常數。這個計畫將分成三個主要目標，第一年合適的壓電陶瓷材料將會進行討論。這些重要參數為材料的密度、壓電陶瓷、介電常數和高機電耦合係數。在第二年，一個合適的材料已經被最佳化，這個材料將會應用在水下麥克風元件。在第三年，一個實驗性的元件將會應用電腦模型進行討論並應用在水下多媒體通訊。我們所發展矽化合物基底之微電子機械水下麥克風是較易整合為集成電路與進行訊號處理。這個新的設計概念將初步和傳統鋯鈦酸鉛和壓電陶瓷材料進行整合。俄羅斯團隊也將對我們所發展的設計進行電腦模擬。這個模擬將幫助我們修正及達到元件之最佳化效能。這個微電子機械學系統各層厚度也是我們有興趣的參數。我們將發展這個微米和奈米結構之轉換器能量模型，討論該元件有限元模型、多尺度模型並考慮到納米及複合材料的微觀結構。耐壓機構特徵和壓電陶瓷材料疲勞特性將會被討論。我們藉由電腦模擬討論前端模塊緩衝層之間的增韌材料和聚合物相並定義元件之強度特性和疲勞斷裂特性。俄羅斯團隊也將發展診斷和非破壞性的控制方法去增加我們所發展訊息傳遞元件(水下麥克風)在水下聲波多媒體通訊之可靠度與機動性。 In this project, there will be developed experimental and theoretical methods and modeling of porous piezoceramics of different connectivity, and also silicon-organic and silicon compounds applied to creation of hydrophone devices. It will be developed and numerically realized a modified method to define the total set of compatible material constants of the porous piezoceramics. This projected will be divided into 3 main objectives. During the first year, suitable piezoceramic materials will be investigated. The important parameters will be material density, piezoelectroicity, dielectric constant and high electro-mechanical coupling factor. During the 2nd year, once suitable material has been optimised, it will be incorporated into hydrophone device. In the 3rd year, the experimentally fabricated device will be compared with computer model and applied in underwater acoustic communication. The advantage of our silicon based MEMs hydrophone is easier integration with the eventual IC and signal processing. The new design will initially be incorporated with traditional PZT Lead zirconate titanate, piezoceramic material. Such design will also be computer simulated by our Russian partner. The simulation will help us modify the PZT in order for optimum performance. Other parameter of interest would be the various thickness of the layers in the MEMS structure. The models of micro- and nanostructure transducers of energy will be developed on the base of finite-element models (FEMs) of the material used and construction of multiscale model by taking into account nano- and microstructure of the composites. There will be researched the fracture resistance mechanisms and multicyclic fatigue of polymercomposite materials. The computer simulation will be carried out and FEMs created by taking into account buffer layers between toughening materials and polymer phase with aim to define their strength properties and characteristics of fatigue fracture. In this project, the Russian team will also develop the diagnostic and non-destructive control methods with aim an increase reliability and vitality of the developed information transmission devices (in particular, hydrophones) acting underwater media.