SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings最新文献

Structure and phase formation of ion-plasma vacuum-arc Zr-B-Si-C-Ti-(N) coatings during deposition 离子等离子体真空电弧Zr-B-Si-C-Ti-(N)涂层沉积过程中的结构和相形成

SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings Pub Date : 2021-12-02 DOI: 10.26799/cp-surfcoat-graphene-korea-2021/3

Dmitry S. Belov

引用次数: 0

Nacre Shell Inspired Self Assembly of Graphene Oxide-Lipid Nanocomposites 珠层壳启发的氧化石墨烯-脂质纳米复合材料的自组装

SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings Pub Date : 2021-12-02 DOI: 10.26799/cp-surfcoat-graphene-korea-2021/6

Greeshma Chathamkandath Raghuvaran

{"title":"Nacre Shell Inspired Self Assembly of Graphene Oxide-Lipid Nanocomposites","authors":"Greeshma Chathamkandath Raghuvaran","doi":"10.26799/cp-surfcoat-graphene-korea-2021/6","DOIUrl":"https://doi.org/10.26799/cp-surfcoat-graphene-korea-2021/6","url":null,"abstract":"Nanoscale graphene oxide-lipid composites have shown wide applications in the field of biosensing and nanosafety. Macroscopic free-standing membranes of this combination potentially offer excellent mechanical properties which can be attributed to the inherent strength of graphene oxide(GO). Previous experimental studies have mostly dealt with monolayer or bilayer interactions of lipids with graphene and graphene oxide surfaces. In our study, we report for the first time, a simple and scalable fabrication method where Small Unilamellar Vesicles (SUVs) of 1,2-dioleoyl-sn-glycero-3-phosphocholine(DOPC) combine with graphene oxide to produce stable nanocomposites via self-assembly. Scanning Electron Microscopy (SEM) images of the composite revealed layer-by-layer structures, reconfirmed by X-Ray Diffraction(XRD) results which show a proportional increase in the interlayer separation with an increasing ratio of lipid in graphene oxide. The nanocomposite thus fabricated mimics naturally occurring nacre shell structures where graphene oxide substitutes the strong aragonite layers, and the intermediate lipid layers provide the necessary elasticity pertaining to protein chitin in nacre. The addition of lipids to graphene-based nanocomposites also serves as a biodegradable alternative to using polymers as a popular reinforcement agent. The ease of fabrication method reported facilitates the production of stable GO-Lipid membranes in variable scales and geometries.","PeriodicalId":425375,"journal":{"name":"SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131377032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of 5,15-A2BC-Type Porphyrins to Modify a Field-Effect Transistor for Detection of Gram-Negative Bacteria 合成5,15- a2bc型卟啉修饰场效应晶体管用于革兰氏阴性菌检测

SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings Pub Date : 2021-12-02 DOI: 10.26799/cp-surfcoat-graphene-korea-2021/2

L. Neumann

引用次数: 0

Finite element simulation of residual stresses and failure mechanism of plasma sprayed thermal barrier coatings considering real interface 考虑实际界面的等离子喷涂热障涂层残余应力及失效机理的有限元模拟

SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings Pub Date : 2021-12-02 DOI: 10.26799/cp-surfcoat-graphene-korea-2021/5

K. Al-Athel

{"title":"Finite element simulation of residual stresses and failure mechanism of plasma sprayed thermal barrier coatings considering real interface","authors":"K. Al-Athel","doi":"10.26799/cp-surfcoat-graphene-korea-2021/5","DOIUrl":"https://doi.org/10.26799/cp-surfcoat-graphene-korea-2021/5","url":null,"abstract":"In order to increase the efficiency of gas turbine engines, which are used for propulsion and electricity generation, the turbine inlet temperature (TIT) has to be as high as possible. Using Thermal Barrier Coatings (TBC) allows the metallic internal components to operate at elevated temperature near to its melting temperature. Thermally growing oxide induces cracks formation in the top coat that may lead to complete failure TBC due to spallation. This research aims at investigating the development of the stresses and critical cites that have possibility of crack nucleation due to thermal mismatch during operating cycle of a typical plasma sprayed TBC. A true finite element model was developed based on a scanning electron microscope image taking the advantage of a commercial finite element package (ABAQUS) and image processing techniques. The model including the effect of creep on all layers and plastic deformation of BC, TGO and substrate. The results show that unlike common unit cell models in literature, a better understanding can be achieved by having a model based in an SEM image that represents the real geometry.","PeriodicalId":425375,"journal":{"name":"SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115348612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of the addition of granite powder to the primer on the pull-off strength of epoxy resin coatings 底漆中添加花岗岩粉对环氧树脂涂料拉脱强度的影响

SurfCoat Korea and Graphene Korea 2021 International Joint Virtual Conferences Proceedings Pub Date : 2021-12-02 DOI: 10.26799/cp-surfcoat-graphene-korea-2021/4

Lukasz Kampa

引用次数: 0