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CSC 博士招生_英國貝爾法斯特女王大學(xué)機(jī)械與航空航天學(xué)院(材料)
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Title: Boron nitride nanosheets / polymer nanocomposites with enhanced mechanical & thermal properties Project Description: The excellent mechanical properties, high thermal conductivity and electrical resistivity make BN nanostructures promising additives for creating highly thermally conductive and electrically insulating polymer composites with excellent overall performance. Recently, polymer composites incorporating BN nanostructures have attracted great interest from the rapidly advancing electronic industry, where high value-added, efficient heat dissipating materials are demanded for electronic packaging and other related accessories. The investigations on BN nanocomposites are still at their very early stage. The limitation is mostly caused by the difficulties of large scale synthesis of BN nanostructures. Currently gram level BN nanotubes are available, which restricts the scale at which polymer composite studies can be performed. For BN nanosheets (BNNS), although it seems liquid exfoliation is an effective method to process a large amount of samples, the challenge of producing high yield single/few layer BNNS with controlled quality has yet to be resolved. With respect to the fabrication processes, the properties of the interface and dispersion, create extensive complications in BN polymer composites. With respect to composite manufacturing, mechanical reinforcement can only be achieved at a low fraction of BN nanostructures, i.e. < 5 wt%, beyond this the composite mechanical properties deteriorate drastically due to BN agglomeration and poor interfacial interaction. On the other hand, effective thermal conductivity can only be achieved at high filler fraction. In this project, we aim to investigate the properties of melt processed, BNNS/polymer nanocomposites from initial compounding stage, through to behaviour under large strains, typical of industrial manufacturing. A thorough understanding of the materials structure-properties relationship would lead to the manufacturing of composites with tailored structures and enhanced mechanical/thermal/dielectric properties suitable for a wide range of applications. Specific objectives are: 1) Use various characterization techniques (e.g., DSC, XRD, SEM etc) to determine the influence of processing and material parameters on the dispersion/exfoliation of BNNS in melt compounded polymers. 2) Determine the effect of elongational deformation on the structure development and properties of melt compounded BNNS-polymer composites. 3) Develop strategies for out of plane BNNS orientation and create composites with 3D thermal conductive pathway and demonstrator material will be tested. 4) Determine the relationship between material-process-structure-properties of BNNS-polymer composites Key Skills Required for the post: Candidate should demonstrate knowledge/experience/skills in at least one of the following areas: • Polymer/composite science • Nanomaterials (e.g., nanocarbon, boron nitride) synthesis and characterization • Composites fabrication/processing and characterization (mechanical, electrical, dielectrical, thermal, etc) Key Transferable Skills that will be developed during the PhD: The training approach utilised will be targeted specifically towards PhD graduates securing employment in manufacturing industry, academic institutions and national & international government agencies. Training areas will include four domains encompassing; knowledge & intellectual abilities, personal effectiveness, research governance & organisation, engagement influence & impact. 導(dǎo)師聯(lián)系方式及簡介: First/Lead Supervisor and their contact details: Dr Dan Sun d.sun@qub.ac.uk https://www.qub.ac.uk/schools/Sc ... emicStaff/DrDanSun/ Second Supervisor and their contact details: Prof Brian Falzon b.falzon@qub.ac.uk (Head of school) https://www.qub.ac.uk/schools/Sc ... ff/ProfBrianFalzon/ 貝爾法斯特女王大學(xué)(Queen\'s University Belfast)于1845年由維多利亞女王建校,因此為女王大學(xué)。為英國頂尖名校,全球百強(qiáng)名校。是一所享譽(yù)歐洲的公立頂級研究型大學(xué),該校擁有全英國和愛爾蘭頂級醫(yī)學(xué)院和工程學(xué)院,該校的醫(yī)學(xué)院,商學(xué)院,工學(xué)院以及管理學(xué)院也都在全愛爾蘭名列前茅。該大學(xué)位于英國的北愛爾蘭首府貝爾法斯特,其教研歷史悠久,學(xué)術(shù)成就昭著,是英國和愛爾蘭歷史最悠久的大學(xué)之一,并且也是英國著名的常青藤名校羅素集團(tuán)大學(xué)成員之一。 https://baike.baidu.com/link?url ... ffxyY6DZ_qrSWrVS8hj 貝爾法斯特女王大學(xué)機(jī)械與航空航天學(xué)院官網(wǎng): https://www.qub.ac.uk/schools/Sc ... rospaceEngineering/ 相關(guān)招聘信息,導(dǎo)師簡介可見學(xué)院官網(wǎng)。如有任何疑問或有意愿,請直接聯(lián)系導(dǎo)師,郵箱見上。 |
» 搶金幣啦!回帖就可以得到:
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