Thematische Bibliographien / Gel–tape casting

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Auswahl der wissenschaftlichen Literatur zum Thema „Gel–tape casting“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 3. Februar 2022

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Zeitschriftenartikel zum Thema "Gel–tape casting"

Shang, Qiushun, Zhengjuan Wang, Jun Li, Guohong Zhou, Hailong Zhang und Shiwei Wang. „Gel-tape-casting of aluminum nitride ceramics“. Journal of Advanced Ceramics 6, Nr. 1 (März 2017): 67–72. http://dx.doi.org/10.1007/s40145-016-0211-3.

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Cheng, Sheng, Jiang Hong Gong, Zhong Tai Zhang und Zi Long Tang. „Study of LSGM Slurry for Gel-Tape-Casting“. Key Engineering Materials 280-283 (Februar 2007): 751–52. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.751.

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A novel process, gel-tape-casting, is employed to fabricate LSGM thin dense sheets in aqueous AM system. The influences of powder properties, dispersant and other additives were discussed and relevant processing parameters were also explored. The slurry of LSGM with a high solid loading about 33 vol.% was successfully obtained.

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Jun-hui, Xiang, Huang Yong und Xie Zhi-peng. „Study of gel-tape-casting process of ceramic materials“. Materials Science and Engineering: A 323, Nr. 1-2 (Januar 2002): 336–41. http://dx.doi.org/10.1016/s0921-5093(01)01390-9.

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Kisand, V., J. Shulga, T. Tätte, U. Visk, M. Natali, G. Mistura, M. Paalo, M. Lobjakas und I. Kink. „Preparation of structured sol–gel films using tape casting method“. Materials Science and Engineering: B 137, Nr. 1-3 (Februar 2007): 162–65. http://dx.doi.org/10.1016/j.mseb.2006.11.001.

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Xiang, Junhui, Zhipeng Xie und Yong Huang. „Processing of Al2O3 sheets by the gel–tape-casting process“. Ceramics International 28, Nr. 1 (Januar 2002): 17–22. http://dx.doi.org/10.1016/s0272-8842(01)00052-9.

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Fan, Mao Yan, Li Fang Zhang, Hong Xiao und Tian Tian Xie. „Preparation and Electrical Properties of Multilayer Zinc Oxide Varistor by Gelcasting“. Advanced Materials Research 852 (Januar 2014): 285–90. http://dx.doi.org/10.4028/www.scientific.net/amr.852.285.

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Multilayer ZnO varistors were prepared by aqueous gel tape casting with water-soluble acrylamide as binder. 0.8wt% PAA dispersant was found to be the optimum concentration needed to prepare stable slurry. Plasticizer glycerol has a positive effect on the fluidity of the suspension and oxygen anti-polymerizing inhibitor PEG 2000 deteriorated the fluidity. The addition of 15wt. % PEG2000 eliminates the surface exfoliation absolutely due to the oxygenation of ether units. The solid loading of the slurry was about 71wt% compared to the custom acrylic formulation binder 60wt%. The multilayer ZnO varistors prepared by aqueous gel tape casting display comparable good electrical properties to those prepared by water-based tape casting using custom acrylic formulation binder which is attributed to the high solid loading of slurry.

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Hu, Tao, Heli Jantunen, Antti Uusimäki und Seppo Leppävuori. „BST powder with sol-gel process in tape casting and firing“. Journal of the European Ceramic Society 24, Nr. 6 (Januar 2004): 1111–16. http://dx.doi.org/10.1016/s0955-2219(03)00427-8.

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Yu, Zhiyong, Yong Huang, Chang-an Wang und Shixi Ouyang. „A novel gel tape casting process based on gelation of sodium alginate“. Ceramics International 30, Nr. 4 (Januar 2004): 503–7. http://dx.doi.org/10.1016/j.ceramint.2003.08.003.

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Yi, Zhong Zhou, Feng Rui Zhai, Ying Li, Wei Liu und Zhi Peng Xie. „Preparation of Ni/YSZ Anode Material Using Gel-Tape Casting and Performance Analysis“. Advanced Materials Research 105-106 (April 2010): 650–52. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.650.

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Ni/YSZ cermet is the most widely used anode material for solid oxide fuel cell. In this paper, the NiO/YSZ green body was prepared by gel-tape casting, using 15%wt. starch as pore-forming agent, in the mixed polyvinyl alcohol and acrylamide systems. Ni/YSZ anode material was obtained after sintered at 1450°C for 2h and reduced at 800°C in H2 atmosphere for 4h. The anode porosity, XRD, TGA and microstructures were measured. YSZ formed a continuous network structure and Ni particles were dispersed homogeneously in the YSZ network. It is suitable to fabrication of anode material for solid oxide fuel cell.

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XIE, Z., C. MA und Y. HUANG. „Effects of additives on alumina sheets forming by a novel gel-tape-casting“. Materials & Design 24, Nr. 4 (Juni 2003): 287–91. http://dx.doi.org/10.1016/s0261-3069(03)00020-7.

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Dissertationen zum Thema "Gel–tape casting"

Smiešková, Jana. „Laminování keramických fólií“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442596.

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This master’s thesis deals with ways of lamination of ceramic tapes prepared by gel–tape casting method. The thesis is divided into two parts. The first part, a literary recherche, describes methods of production of thin ceramic layers. The main focus is on the tape casting method. The second, experimental, part of the thesis describes the preparation of ceramic suspensions, the fabrication of thin ceramic layers by gel–tape casting method, the preparation of laminated bodies from thick-walled discs and laminated tapes and it also shows a possibility of creating of ceramic layers by the spin coating method used on polycrystalline ceramic substrate.

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Hliničan, Jan. „Ohebné keramické fólie z oxidu zirkoničitého“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442744.

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The diploma thesis is focused on preparation of thin and highly flexible ceramic tapes from zirconia with a thickness from 70 to 200 m. The thesis is divided into two parts. The first part presents a literary research that focuses on the properties of zirconium dioxide, the preparation of thin ceramic foils and the evaluation of the mechanical properties of ceramic materials. The second part is experimental. It deals with the preparation of thin ceramic foils from colloidal ceramic suspensions produced by epoxy gel-tape casting method. The suspensions were prepared from zirconium dioxide stabilized by 2 and 3 mol.% of yttrium oxide. The maximum deflection and strength was determined on sintered foils. The maximum biaxial strength of 1806 MPa was achieved for 3Y-PC 75 foils with a thickness of 190 m. The maximum deflection of 10.5 mm at a ceramic foil thickness of 75 m was achieved in a 3-point bend with a support span of 30 mm on 3Y-PC 75 samples. At a support distance of 50 mm, the samples were pushed through the gap without damage. These results indicate excellent mechanical properties of the prepared ceramic foils.

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Fojtík, Ondřej. „Příprava a optimalizace piezoelektrických materiálů na bázi BCZT pro energy harvesting“. Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2019. http://www.nusl.cz/ntk/nusl-401844.

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This thesis deals with fabrication and optimization of lead-free piezoceramics based on (Ba0,85Ca0,15Zr0,1Ti0,9)O3 (BCZT). The BCZT precursor powder was synthesized by sol-gel method. Dependence of relative density, microstructure, phase structure and piezoelectric properties on the sintering temperature in a range from 1300–1500 °C was studied on disc shaped samples, which were prepared by cold isostatic pressing (CIP) using pressure of 700 MPa. It was found, that sintering at 1300 and 1350 °C leads to ceramics with fine-grain microstructure, which exhibits poor piezoelectric properties (d*33 = 50 pC·N1 and 65 pC·N1, respectively). The highest value of piezoelectric charge coefficient was obtained by sintering at 1500 °C (d*33 = 390 pC·N1). Furthermore, BCZT thick films were prepared by tape casting. The composition of the ceramic slurry was optimized and various sintering techniques were tested to obtain completely flat films of BCZT ceramics. The correct sintering configuration has not been found. The least deformation of the films was achieved when the samples were sintered hung on the ZrO2 rod. The highest value of d*33 for BCZT films was measured when the sample was sintered at 1400 °C with the dwell time for 4 h (d*33 = 340 pC·N1).

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Nan, Bo. „Výzkum nových elektrokeramických struktur pro nové aplikace senzorů“. Doctoral thesis, Vysoké učení technické v Brně. CEITEC VUT, 2019. http://www.nusl.cz/ntk/nusl-408056.

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Piezoelektrické keramické materiály jsou široce používány v mnoha aplikacích a průmyslových odvětvích, nicméně tradiční materiály obvykle obsahují olovo, které je toxické vůči životnímu prostředí. Většina zemí proto zavedla zákony a omezení, které postupně minimalizují spotřebu olova a podporují výzkum v oblasti bezolovnatých kompozic, které by nahradily olověné protějšky. Bezolovnatá piezoelektrická keramika se tak stala žhavým tématem v posledních letech. Nicméně výzkumy na praktické využití bezolovnatých piezoelektrických materiálů jsou jen zřídka publikovány. V této diplomové práci byl vybrán jeden z nadějných kandidátů na piezoelektrickou bezolovnatou keramiku (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 za účelem zkoumání metody snížení jeho vysoké teploty slinování pomocí dotování uhličitanem lithným, kde syntéza prášku byla připravená pomocí techniky sol-gel. Výsledky byly srovnány s konvenčním práškem syntetizovaným v pevné fázi. Vzorky vyrobené ze sol-gel prášku dopovaného 0.5% hmotn. uhličitanem lithným a slinované při 1300 °C po dobu 2 hodin vykazovaly d33 = 447 ± 9 pC N–1, teplotu Curie 98.7 °C a velikost zrn 7.0 ± 0.3 m. Další důležitou otázkou pro aplikace bezolovnatého piezoelektrického keramického materiálu je jeho výroba v různých konfiguracích. Použitím techniky odlévání pásky a aditivních výrobních postupů byla piezoelektrická keramika zpracována do tří různých konfigurací (2-2, 3-3 a 1-3), aby se překlenula mezera mezi materiálovými vědami a materiálovým inženýrstvím. Pro dolévání pásky byly použity suspenze na bázi oleje a vody. Pro přípravu neslinutých keramických fólií bez trhlin, byly pro odlévání na bázi oleje vyvinuty uhlíkové suspenze s obsahem pevných látek 25% hmotn. a BCZT suspenze s obsahem pevných látek 65% hmotn. Problém práškové hydrolýzy ve vodných suspenzích byl vyřešen povrchovou úpravou prášku Al(H2PO4)3, což umožnilo, aby byly tlusté vrstvy bez trhlin odlety v jednom kroku. Tlusté vrstvy slinované při 1500 °C vykazovaly relativní dielektrickou konstantu 1207, dielektrickou ztrátu 0.018 při 1 kHz, remanentní polarizaci 7.54 µC/cm2 a koercitivní síla intenzity pole (Ec) 0.23 kV/mm při 3 kV/mm. Pro tvarování BCZT v konfiguraci 3-3 a 1-3 byla použita přímá metoda tisknutí inkoustu. Pro správnou úpravu tiskového procesu byla použita inkoustová náplň s viskoelastickým chováním obsahující 41.6% obj. pevných látek BCZT a se zpracovatelskými přísadami (HPMC ~ 2.4% a PEI ~ 0.03%). Vzorky v konfiguraci 3-3, slinované při 1500 °C, vykazovaly nejvyšší dielektrické a piezoelektrické vlastnosti, kde Curieho teplota = 86 °C, tan = 0.021, remanentní polarizace = 4.56 µC/cm2 a d33 = 100 ± 4 pC/N. Vzorky v konfiguraci 1-3 slinované při 1500 °C, které byly smíchány s epoxidem, vykazovaly dielektrickou konstantu 144 a dielektrickou ztrátu 0.035 při 1 kHz. Tato práce popisuje tvarování bezolovnaté piezoelektrické keramiky s vynikajícími vlastnostmi v pokročilých strukturách jako krok k návrhu pro moderní senzorické a energy harvesting aplikace.

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Buchteile zum Thema "Gel–tape casting"

Huang, Yong, und Jinlong Yang. „Gel-Tape-Casting of Ceramic Substrates“. In Novel Colloidal Forming of Ceramics, 16–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12281-1_2.

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Yang, Jinlong, und Yong Huang. „Gel Tape Casting of Ceramic Substrates“. In Novel Colloidal Forming of Ceramics, 17–77. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1872-0_2.

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Cheng, Sheng, Jiang Hong Gong, Zhong Tai Zhang und Zi Long Tang. „Study of LSGM Slurry for Gel-Tape-Casting“. In High-Performance Ceramics III, 751–52. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-959-8.751.

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Aririguzoh, Stella Amara. „Crystallization Effect of Television Broadcasts on Nigerian Voters During a Presidential Election“. In Global Perspectives on the Impact of Mass Media on Electoral Processes, 18–39. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4820-2.ch002.

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Television is popularly used to offer information to viewers during elections. There will always be citizens who register to participate in an election and then refuse to take further steps, like casting their votes. This study sought to find out if television broadcasts made citizens like these experience the crystallization effect. This effect causes uninterested citizens to make crystal clear choices on particular contestants. This study sought to find out about the crystallization effect on voters in Ado Odo/Ota communities in Ogun State of Nigeria during the 2007 Nigerian presidential election. The survey method was used to get required data from 782 respondents who were not members of any political party, had no candidate preference, and were yet to decide on who to vote for in this election. It seems plain from this study that television broadcasts sharpened these citizens' decisions to make specific choices. These undecided, indifferent, or neutral voters had their ideas crystallized or decisively formed to vote for specific candidates after exposure to television broadcasts.

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Konferenzberichte zum Thema "Gel–tape casting"

Xu, Zhigang, Gukan Rajaram und Jag Sankar. „Prepare Electrolyte and Electrolyte/Anode Bi-Layers for Solid Oxide Fuel Cells With Novel Gel-Casting Method“. In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67717.

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A novel gel-casting method has been developed from general slurry tape casting technique to prepare electrolyte films and bi-layers of electrolyte and anode. This method permits to fabricate electrolyte layer as thin as 10–30 microns after sintering. In the study, a factorial experiment design was performed on the quantities of the gelling agent and the binders for the gel casting of electrolyte thin films and fuel cell bi-layers. The quality of the green films was assessed to determine the optimal amount of the gelling agent and the binders. The films were sintered at different temperatures from 1200°C to 1450°C to test the sinterability of the films. The sintering were also performed with impregnation of Bi(NO3)3 resulting in a great improvement in densification at lower temperature.

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Pei, Carina Chun, Wallace Woon-Fong Leung, Lijun Yang und Chi-ho Hung. „Photocatalytic Degradation of Rhodamine B by TiO2/ZnO Nanofibers Under Visible Light Irradiation“. In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64695.

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Photocatalytic reduction of contaminants in wastewater or polluted water can be enhanced by finding a suitable catalyst with property that utilizes an extended light adsorption spectrum, reducing the recombination of electron-hole pairs, and casting the catalyst into a form with large surface-to-volume ratio to be in contact with the contaminants. Based on these objectives, Zn-doped TiO2 nanoparticles with high photocatalytic activity were synthesized by the sol–gel assisted nozzle-less electrospinning technique followed by calcining the precursor Ti(OiPr)4/ZnAc/PVP nanofibers in air in the temperature range of 450–650°. The thermal decomposition behavior was studied by thermogravimetric analyser and differential scanning calorimeter (TGA–DSC), and the morphology and crystal structure were monitored by scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). With the different concentration of zinc acetate in the precursor solution, the diameter of fibers ranged from 80–130 nm. The photocatalytic degradation of rhodamine B dye under visible light irradiation was also studied. It is found that the photosensitized degradation activity can be optimized by doping an appropriate amount of Zn (0.30 wt. %). Hence, the enhanced photodegradation of dyes with a new photocatalyst nanofiber under visible irradiation can be realized, which can take better use of solar energy.

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