Processing of porous ceramics from highly concentrated suspensions by foaming, in situ polymerization and burn-out of polylactide fibers

Wiecińska, Paulina; Bachonko, Mariola

doi:10.1016/j.ceramint.2016.06.162

Cited by 15 publications

(9 citation statements)

References 34 publications

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“…Mass 18 can be ascribed to water vapor, while mass 44 to carbon dioxide [33]. Masses 45 and 46 may come from the low-chain (C 3 and C 4 ) hydrocarbons [34]. The thermal degradation of poly(glycerol monoacrylate) in air is connected with one exothermic peak with two maxima at 448.6 and 536.5°C.…”

Section: Resultsmentioning

confidence: 99%

Thermoanalytical studies of the ceramic-metal composites obtained by gel-centrifugal casting

Zygmuntowicz

Wiecińska

Miazga

et al. 2017

J Therm Anal Calorim

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Composite material with a gradient concentration of the metallic phase was prepared by the novel gelcentrifugal casting method. This method combines the consolidation of powders by the centrifugal force with the reaction of radical polymerization of an organic monomer which simultaneously proceeds within the composite slurry. The combination of the centrifugal casting with gelcasting permits production of ceramic-metal composites, including materials with a gradient distribution of metallic particles in a ceramic matrix. Special attention was paid to the thermal analysis of the composite Al 2 O 3 -Ni green bodies and the binder used in the fabrication of the material. The experiments were performed on the simultaneous thermal analyzer coupled with the mass spectrometer. The measurements were carried out in air and the inert atmosphere (argon) what allowed to determine the effects characteristic for organic binder decomposition and type of gases released to the atmosphere during thermal treatment. The measurements allowed also to establish the sintering program of the green composite samples and evaluate whether harmful gases are released to the atmosphere. The thermal experiments were complemented with physical and structural measurements, including X-ray diffraction and scanning electron microscopy.

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Section: Resultsmentioning

confidence: 99%

Thermoanalytical studies of the ceramic-metal composites obtained by gel-centrifugal casting

Zygmuntowicz

Wiecińska

Miazga

et al. 2017

J Therm Anal Calorim

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“…In this fabrication processing, ceramic powders are usually assembled into PU framework to achieve various controllable architectures. Unfortunately, the intrinsic drawbacks for PU foaming, including inferior pore interconnectivity, low pore surface area, and the presence of closed pores, hinder its further practical applications …”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, the intrinsic drawbacks for PU foaming, including inferior pore interconnectivity, low pore surface area, and the presence of closed pores, hinder its further practical applications. 16,17 To overcome these issues, many efforts have been made: one of the most effective strategy is creating micrometer-size pores inside cell wall incorporated with submicrometer pores to form hierarchical structure. Thanks to its nanoscale and spherical shape, carbon black (CB) has been widely developed as micrometer pore-forming agent to construct hierarchical structure, promoting the pore interconnectivity of ceramic foams.…”

Section: Introductionmentioning

confidence: 99%

Novel design of alumina foams with three‐dimensional reticular architecture for effective high‐temperature particulate matter capture

et al. 2019

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Ceramic foams with extensive interconnected pores have great application potential in high‐temperature particulate matter (PM) capture. Considering that there are still challenges to synthesize ceramic foams with efficient filtration, a novel hierarchical‐structured alumina foam with three‐dimensional (3D) reticular architecture has been fabricated via combining chemical grafting pore‐forming agent and polyurethane (PU) foaming technology. Carbon black is grafted with carbamate functional groups in order to enable a better dispersion in highly viscous PU. Submicrometer and micrometer‐sized pores on the cell walls are observed in hierarchical‐structured ceramic foams. The resulting alumina foam exhibits 95.2% removal efficiency for PM particles and low pressure drop of only 50 Pa when grafted carbon black content is 3 wt%. This filtration performance is much higher than that of existing ceramic materials. These features, combined with our experimental design strategy, provide a new insight to design high‐temperature PM filtration materials with durable high performance.

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“…A good method of obtaining porous materials with a set shape is gelcasting [11][12][13][14][15][16][17][18][19][20][21][22]. Gelcasting is a combination of the traditional method of forming ceramic materials from casting slips with the polymerization reaction.…”

Section: Introductionmentioning

confidence: 99%

Manufacture of Fine-Pored Ceramics by the Gelcasting Method

Psiuk

Gerle

Osadnik

et al. 2017

Advances in Materials Science and Engineering

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The fine-pored materials represent a wide range of applications and searches are being continued to develop methods of their manufacturing. In the article, based on measurements on fine-grained powders of Al2O3, TiO2, and SiO2, it has been demonstrated that gelcasting can be relatively simple method of obtaining of nanoporous materials with high values of both specific surface area and open porosity. The powders were dispersed in silica sol, and the gelling initiator was NH4Cl. The usefulness of experiment design theory for developing of fine-pored materials with high porosity and specific surface area was also shown.

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Processing of porous ceramics from highly concentrated suspensions by foaming, in situ polymerization and burn-out of polylactide fibers

Cited by 15 publications

References 34 publications

Thermoanalytical studies of the ceramic-metal composites obtained by gel-centrifugal casting

Thermoanalytical studies of the ceramic-metal composites obtained by gel-centrifugal casting

Novel design of alumina foams with three‐dimensional reticular architecture for effective high‐temperature particulate matter capture

Manufacture of Fine-Pored Ceramics by the Gelcasting Method

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