Biomorphic Cellular Ceramics

Sieber, H.; Hoffmann, Christiane; Kaindl, A.; Greil, Peter

doi:10.1002/(sici)1527-2648(200003)2:3<105::aid-adem105>3.0.co;2-p

Cited by 204 publications

(47 citation statements)

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“…Synthesis of ceramics from natural fibrous and vegetable precursors has attracted much interest in recent years 1–4 . The research was mainly driven by economical reasons as natural materials serve as a renewable and relatively inexpensive source of carbon.…”

Section: Introductionmentioning

confidence: 99%

Formation of Porous SiC Ceramics by Pyrolysis of Wood Impregnated with Silica

Vyshnyakova

Yushin

Pereselentseva

et al. 2006

Int J Applied Ceramic Tech

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Biomorphous β‐SiC ceramics were produced at 1400°C from pine wood impregnated with silica. This one‐step carbothermal reduction process decreases the cost of manufacturing of SiC ceramics compared with siliconization of carbonized wood in silicon vapor. The synthesized sample exhibits a 14 m2/g surface area and has a hybrid pore structure with large 5–20 μm tubular macropores and small (<50 nm) slit‐shaped mesopores. SiC whiskers of 20–400 nm in diameter and 5–20 μm in length formed within the tubular pores. These whiskers are expected to improve the filtration by removing dust particles that could otherwise penetrate through large pores. After ultrasonic milling, the powdered sample showed an average particle size of ∼30 nm. The SiC nanopowder produced in this process may be used for manufacturing SiC ceramics for structural, tribological, and other applications.

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Section: Introductionmentioning

confidence: 99%

Formation of Porous SiC Ceramics by Pyrolysis of Wood Impregnated with Silica

Vyshnyakova

Yushin

Pereselentseva

et al. 2006

Int J Applied Ceramic Tech

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“…Their features can vary over a wide range depending on the biological structures which were used to produce the ceramic material [16][17][18]. Their features can vary over a wide range depending on the biological structures which were used to produce the ceramic material [16][17][18].…”

Section: Biomimetic Ceramic Structuresmentioning

confidence: 99%

Electrical Properties

Martin

Adler

2005

Cellular Ceramics

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“…[5][6][7] Simultaneously, the development of a technology for the synthesis of porous ceramics with wood as the raw material and template was driven by environmental and economical issues, as wood serves as a renewable and relatively inexpensive carbon source. For example, Sieber et al 10 used pyrolyzed carbon preforms from different wood structures as templates 1214 LI, SHI and TAN for infiltration with gaseous or liquid Si to form SiC-and SiSiC-ceramics. Among them, porous SiC is particularly attractive because of its unique physical, mechanical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Conversion of wood flour/SiO2/phenolic composite to porous SiC ceramic containing SiC whiskers

Shi

Tan

2013

JSCS

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A novel wood flour/SiO2/phenolic composite was chosen to be converted into porous SiC ceramic containing SiC whiskers via carbothermal reduction. At 1550°C the composite is converted into porous SiC ceramic with pore diameters of 10~40μm, and consisting of β-SiC located at the position of former wood cell walls. β-SiC wire-like whiskers of less than 50 nm in diameter and several tens to over 100 μm in length form within the pores. The surface of the resulting ceramic is coated with β-SiC necklace-like whiskers with diameters of 1~2μm

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Biomorphic Cellular Ceramics

Cited by 204 publications

References 0 publications

Formation of Porous SiC Ceramics by Pyrolysis of Wood Impregnated with Silica

Formation of Porous SiC Ceramics by Pyrolysis of Wood Impregnated with Silica

Electrical Properties

Conversion of wood flour/SiO2/phenolic composite to porous SiC ceramic containing SiC whiskers

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