Research Progress in Preparation of Porous Ceramics

Deng, Xiangong; Wang, Junkai; Huang, Zhong; Zhao, Wanguo; Li, Faliang; Zhang, Haijun

doi:10.1007/bf03401108

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…To date, the routes for fabricating porous ceramics have been reported to include pore-forming agent method, organic foam impregnation, direct foaming method, solgel method, particle accumulation sintering method, etc. [1][2][3][4] Relying on these techniques, extensive research has been carried out using steel slag and coal gangue as raw materials for synthesizing porous ceramics. [5][6][7][8] For example, some researchers have attempted to prepare porous ceramics by mixing other industrial wastes, such as fly ash, waste quartz sand, silica sand tailing, etc., with steel slag and coal gangue for reducing cost and broadening the areas of industrial waste recycling.…”

Section: Introductionmentioning

confidence: 99%

“…To date, the routes for fabricating porous ceramics have been reported to include pore‐forming agent method, organic foam impregnation, direct foaming method, sol–gel method, particle accumulation sintering method, etc 1–4 . Relying on these techniques, extensive research has been carried out using steel slag and coal gangue as raw materials for synthesizing porous ceramics 5–8 .…”

Section: Introductionmentioning

confidence: 99%

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Porous ceramics derived from steel slag/coal gangue mixtures using cigarette butts as the pore‐forming agent

Liu

Wang

et al. 2023

Int J Applied Ceramic Tech

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Fabrication of ceramic materials with interconnected pores is necessary to improve thermal energy storage efficiency in high‐temperature infiltration technology. In the present study, industrial wastes such as coal gangue, steel slag, etc., were selected as the raw materials to prepare ceramics with interconnected pores. By adopting 50% cigarette butts as the pore‐forming agent, steel slag–coal gangue mixtures with a mass ratio of steel slag to coal gangue of 1:9 were sintered at 1100°C, and ceramics with interconnected elongated pores were prepared successfully. The highest apparent porosity and lowest volume density of the as‐prepared ceramics were ca. 73% and .74 g/cm3, respectively. Further measurements of the thermophysical properties indicated that no obvious mass loss was observed in the temperature range from ambient temperature to 800°C. The maximum values of specific heat and thermal conductivity were 1.38 J/(g K) and 1.661 W/(m K), respectively, and meanwhile the minimum compressive strength could exceed 3.5 MPa. These research results implied that the as‐prepared steel slag–coal gangue ceramics can provide long‐term service and offer excellent thermal stability over a wide temperature range. Therefore, they should have potential applications in high‐temperature infiltration technology.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Porous ceramics derived from steel slag/coal gangue mixtures using cigarette butts as the pore‐forming agent

Liu

Wang

et al. 2023

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…[5][6][7][8] Recently, a novel and simple gelcasting system was discovered using a nontoxic and water-soluble copolymer of isobutylene and maleic anhydride (PIBM, hereafter), which can act as both dispersant and gelling agent. 9 Up to now, a variety of ceramics, like Al 2 O 3 , 10-13 Y 2 O 3 , 14 AlON, 15 AlN, 16 YAG, 17 Si 3 N 4 , 18 and mullite 19 have been made using this PIBM gelling system. The main problem in PIBM gelling system is the low strength of ceramic gel and green body, which is critical to the drying of ceramic gels and the handling of green bodies.…”

Section: Introductionmentioning

confidence: 99%

Improved Strength of Alumina Ceramic Gel and Green Body Based on Addition‐Esterification Reaction

Sun

Peng

Shimai

et al. 2016

Int J Applied Ceramic Tech

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Ethylene glycol diglycidyl ether (EGDGE), a water‐soluble epoxy resin, was used as a complementary gelling agent to improve the strength of alumina green bodies gelcast using PIBM (a copolymer of isobutylene and maleic anhydride acting as both dispersant and gelling agent) gelling system. The effects of EGDGE on the gelling behavior of PIBM‐EGDGE aqueous solutions and alumina slurries, mechanical properties of the resultant alumina gels, green bodies, and sintered ceramics were evaluated. Gelation of both the solutions and the slurries was accelerated with the addition of EGDGE. The changes in storage modulus (G′) of the slurries during gelation were quite different from those of the solutions. With the addition of 0.6 wt% EGDGE, G′ of the gel from a slurry with 50 wt% solid loading and 0.3 wt% PIBM increased 63% (100 min of testing), and flexural strength of the resultant green body increased 167%. Such gels and green bodies are strong enough for subsequent processing. They resulted in presintered bodies with low porosity and sintered ceramics with high relative density and flexural strength.

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The journey of multifunctional bone scaffolds fabricated from traditional toward modern techniques

et al. 2020

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Research Progress in Preparation of Porous Ceramics

Cited by 4 publications

References 35 publications

Porous ceramics derived from steel slag/coal gangue mixtures using cigarette butts as the pore‐forming agent

Porous ceramics derived from steel slag/coal gangue mixtures using cigarette butts as the pore‐forming agent

Improved Strength of Alumina Ceramic Gel and Green Body Based on Addition‐Esterification Reaction

The journey of multifunctional bone scaffolds fabricated from traditional toward modern techniques

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