Paper derived biomorphic porous titanium carbide and titanium oxide ceramics produced by chemical vapor infiltration and reaction (CVI-R)

Popovska, N.; Streitwieser, Daniela Almeida; Xu, Chen; Gerhard, Helmut

doi:10.1016/j.jeurceramsoc.2004.04.007

Cited by 49 publications

(18 citation statements)

References 23 publications

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“…SiC-based cellular ceramics of diverse compositions were fabricated by Greil and colleagues 52,[55][56][57] via the infiltration and reaction of liquid or gaseous silicon metal with the carbon preform. Other gaseous metals and metal precursors, [58][59][60] preceramic polymers, 63 ceramic suspensions, 62 and salt solutions 64,65 have recently been employed to infiltrate the carbon cellular structure and obtain oxide, carbide, phosphate, and zeolite-containing macroporous ceramics through the wood-derived replica technique. The pore size distribution of wood-derived porous ceramics is determined by the microstructure of the original wood template used.…”

Section: Replica Techniquementioning

confidence: 99%

Processing Routes to Macroporous Ceramics: A Review

Studart

Gonzenbach

Tervoort

et al. 2006

Journal of the American Ceramic Society

1,682

1,143

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Macroporous ceramics with pore sizes from 400 nm to 4 mm and porosity within the range 20%-97% have been produced for a number of well-established and emerging applications, such as molten metal filtration, catalysis, refractory insulation, and hot gas filtration. These applications take advantage of the unique properties achieved through the incorporation of macropores into solid ceramics. In this article, we review the main processing routes that can be used for the fabrication of macroporous ceramics with tailored microstructure and chemical composition. Emphasis is given to versatile and simple approaches that allow one to control the microstructural features that ultimately determine the properties of the macroporous material. Replica, sacrificial template, and direct foaming techniques are described and compared in terms of microstructures and mechanical properties that can be achieved. Finally, directions to future investigations on the processing of macroporous ceramics are proposed.

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Section: Replica Techniquementioning

confidence: 99%

Processing Routes to Macroporous Ceramics: A Review

Studart

Gonzenbach

Tervoort

et al. 2006

Journal of the American Ceramic Society

1,682

1,143

View full text Add to dashboard Cite

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“…Details are given in Refs. 9,11 The paper preform (3 cm × 3 cm) consisting mainly of cellulose fibres was converted into carbon biotemplate (C b ) by pyrolysis in inert atmosphere, followed by chemical vapor infiltration at 1100 • C and atmospheric pressure with TiCl 4 /CH 4 /H 2 as precursor system according to the following equation 11 :…”

Section: Processing Of Biomorphic Porous Ceramics By Cvi-r Techniquementioning

confidence: 99%

Processing of carbide-derived carbon (CDC) using biomorphic porous titanium carbide ceramics

Kormann

Ghanem

Gerhard

et al. 2008

Journal of the European Ceramic Society

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“…Here the discussion is focused on oxide ceramics. [27][28][29][30][31] Wood from a wide range of trees that include pine, fir, spruce (soft wood), oak, beech, maple (hard wood), balsa, bamboo, rattan, have been utilized for producing cellular ceramics.…”

Section: Natural Preformsmentioning

confidence: 99%

“…The infiltrated TTiOP was hydrolysed with water to form a gel in situ and the specimens were dried followed by firing around 1400ºC for 2 h in air. 27 Popovska et al 30,31 derived porous titanium carbide and titanium oxide by chemical vapour infiltration and reaction (CVI-R) method starting from paper. The carbon templates from paper were infiltrated with titanium sources such as TiCl 4 -H 2 , TiCl 4 -H 2 -CH 4 individually, and by sequential infiltration of both.…”

Section: Natural Preformsmentioning

confidence: 99%

Tailoring Porosity and Pore Characteristics in Oxide Ceramic Foams through Controlled Processing

Pradhan

Bhargava

2008

Transactions of the Indian Ceramic Society

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Processing routes to make oxide ceramic foams of porosity more than 70% with pore sizes in the range of 0.1-4 mm are reviewed. M icrostructures and mainly characteristics of pores produced by incorporation of fugitives, infiltration through 3D-preforms, direct casting of foams are compared. Emphasis has been given to the versatile processes with use of natural additiv es, which allow in controlling microstructural features while improving the desired mechanical property. The critical step in setting of ceramic foam through direct casting foaming process, i.e. stabilization of bubbles during consolidation, is being highlighted emphatically with use of water soluble additives.

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Paper derived biomorphic porous titanium carbide and titanium oxide ceramics produced by chemical vapor infiltration and reaction (CVI-R)

Cited by 49 publications

References 23 publications

Processing Routes to Macroporous Ceramics: A Review

Processing Routes to Macroporous Ceramics: A Review

Processing of carbide-derived carbon (CDC) using biomorphic porous titanium carbide ceramics

Tailoring Porosity and Pore Characteristics in Oxide Ceramic Foams through Controlled Processing

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