Tape casted SOFC based on Ukrainian 8YSZ powder

Polishko, I. O.; Ivanchenko, S. E.; Horda, R.V.; Brodnikovskyi, Yehor; Lysunenko, N. О.; Kovalenko, L. L.

doi:10.1016/j.matpr.2018.10.100

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…Such structures can also be used as promising sorbents [35][36][37][38][39][40][41][42][43], for example, hydrogen sorbents, both in the form of carbon nanostructures [44][45][46][47][48], metals and various alloys [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66]. All this will complement the existing developments in the field of hydrogen energy [67][68][69][70][71][72][73]. Of course, the main role in the properties of a nanomaterial is played by the type of system, which can be single-component [74][75] or multicomponent [76][77][78][79].…”

Section: Introductionmentioning

confidence: 99%

Crystalline potassium dihydrogen phosphate (KDP) powders

Zolotarenko,

Matysina

et al. 2023

Poverhn.

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The article discusses the use of KDP ferroelectric crystals (phosphates and arsenates of potassium, rubidium, cesium) and their deuterated analogues in various industries, including the creation of electro-optical devices and as hydrogen sorbents. The paper describes the physical properties of KDP crystals, changes in their properties near the phase transition temperature, as well as methods for obtaining KDP nanocrystals and their application in biomedicine. The paper also states that the phase transition in KDP crystals occurs near room temperature and manifests itself in a change in their physical properties, such as dielectric constant, optical properties, and heat capacity. In addition, approaching the phase transition temperature causes a change in the crystal lattice parameters, which can lead to the appearance of anomalous effects. The structure of the unit cell of potassium dihydrogen phosphate (KH2PO4) is considered. The plots of the temperature dependence of the order parameter of spontaneous polarization and the plots of the temperature dependence of the configurational heat capacity of the crystal in the phase transition region are calculated, and the plots of the temperature of the inverse and direct dielectric susceptibility are calculated. Graphs of the order parameter, which characterizes the degree of spontaneous polarization for different temperatures, depending on the strength of the external electric field, are also calculated.

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Section: Introductionmentioning

confidence: 99%

Crystalline potassium dihydrogen phosphate (KDP) powders

Zolotarenko,

Matysina

et al. 2023

Poverhn.

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“…Such and similar nanomaterials can play the role of fillers for the creation of modern composites [20][21][22][23], which is already being studied for 3D printing technologies [24][25][26][27]. Such materials make it possible to create modern and advanced materials in the field of promising sorbents [28][29][30][31][32][33][34][35][36], biological materials [37][38][39][40][41][42], fuel cells [43][44][45][46], solar panels [47][48][49], and much more.…”

Section: Introductionmentioning

confidence: 99%

Creation of 3D-products using carbon nanostructures and 3D-printing technologies (FDM, CJP, SLA, SLS)

Zolotarenko,

Rudakova

et al. 2023

Poverhn.

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The article discusses methods for obtaining carbon nanostructures (CNS), as well as their use to create three-dimensional (3D) products using FDM, CJP, SLA, SLS technologies. The process of manufacturing consumables for 3D printing technologies (FDM, CJP, SLA, SLS) for creating new composite 3D products based on carbon nanostructures is described. The paper contains a detailed description of which methods of CNS synthesis are more productive and how they allow you to guarantee the production of one or another type of CNS. The paper analyzes the existing 3D printing technologies using CNS, developed a scheme for the full cycle of creating a 3D product containing CNS, taking into account various methods for the synthesis of CNS with the transformation of graphite or other carbon-containing material. It also describes the process of creating composite coils for FDM 3D printing from nanocomposite filaments (rigid polymer-CNS) based on a rigid polymer, which have undergone the process of preparation in a special mixer. The process of preparing consumables and printing a 3D volumetric product using FDM, CJP, SLA, SLS technologies using CNS is described. An overview of consumables for 3D products of FDM technology is presented. The analysis of composite 3D products (ceramic-CNS, rigid polymer-CNS) obtained by FDM and CJP technology was carried out. The paper also describes the three most productive methods for the synthesis of CNS: plasma-chemical synthesis in gas or liquid and pyrolytic method. These synthesis methods make it possible to guarantee the production of a certain type of CNS and have a high quality of the obtained nanoproducts. Various types of CNS are described, including soluble (fullerenes and fullerene-like structures) and insoluble nanostructures (graphenes, carbon nanotubes, carbon nanofibers, nanocomposites, etc.).

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“…The use of fine nanopowder is promising because of the unique properties of tape given by small particle size. For example, high electric ( 13), ( 14), (15) or optical properties ( 16) can be obtained due to smaller grain sizes in the sintered body as well as the ability to reach high density at low sintering temperatures (17). But high specific surface area and tendency to agglomeration cause numerous complications in the suspension preparation (18).…”

Section: Introductionmentioning

confidence: 99%

BaTiO3 films for multilayer devices by tape casting

Ivanchenko

Umerova²,

Baranovskyi

et al. 2021

Mat & Dev

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The diversity of the applicational scope of modern printed electronics relentlessly requires the improvement of operational properties simultaneously with reducing the overall dimensions of devices. One of the most effective ways to overcome this major obstacle is the reduction of functional layers thickness in respect to the size of the device. In the present article, we are discussing a simple way of practical implementation of miniaturization concept through the application of a well-known high-productive industrial method of tape casting for obtaining thin nanostructured ceramic layers based on BaTiO3 nanopowders for MLCC. Using of nanosized powders per se imply a new approach of developing suspensions with suitable rheology for tape casting. We demonstrate, that a length of polymer molecule defines the size of floccules and therefore influences the thickness and surface quality of tape casted films. A certain nanopowder/polymer ratio contributes to the formation of the tapes with the surface roughness comparable with the size of one nanoparticle (20-25 nm). Moreover, it was established that developed suspensions are extremely sensitive to temperature changes. Lowering the temperature significantly affects the flow character of suspension and thus the thickness of casted tapes. Considering this fact, we propose an effective self-developed pre-cooling method of nanopowder suspension casting, which allows obtaining extremely thin and smooth tapes with a thickness of less than 1 µm and surface roughness of 20–25 nm by tape casting method.

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Tape casted SOFC based on Ukrainian 8YSZ powder

Cited by 9 publications

References 5 publications

Crystalline potassium dihydrogen phosphate (KDP) powders

Crystalline potassium dihydrogen phosphate (KDP) powders

Creation of 3D-products using carbon nanostructures and 3D-printing technologies (FDM, CJP, SLA, SLS)

BaTiO3 films for multilayer devices by tape casting

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