Data/hora: 23/06/2024 10:11:12

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 13/02/2013
Data da última atualização: | 24/06/2013
Autoria: | ZENI, T. L.; RAMBO, C. R.; MAGALHAES, W. L. E.; HOTZA, D.
Afiliação: | THIAGO LUIS ZENI, Bolsista da Embrapa Florestas; CARLOS RENATO RAMBO, UFSC; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; DACHAMIR HOTZA, UFSC.
Título: | Control of porosity and permeability of wood by fungi action for biotemplating of SiC.
Ano de publicação: | 2013
Fonte/Imprenta: | Journal of Wood Chemistry and Technology, v. 33, n. 1, p. 33-43, 2013.
DOI: | 10.1080/02773813.2012.720337
Idioma: | Inglês
Conteúdo: | Biotemplating is a process for the manufacturing of materials from natural resources. In this work, staining fungi were applied to control the porosity and perme- ability of wood templates for the production of biomorphic SiC ceramics. The action of fungi species Trichoderma sp. and Cytospora eucalypticola in Pinus elliottii var. elliottii wood was evaluated. The wood templates were inoculated with fungi, and the bioactivity was accompanied for 28 days. Air permeability and porosity of the samples were evaluated as a function of time. For ceramic conversion, the templates were then pyrolyzed at 900&#9702;C for 1 h in flowing N2 atmosphere, followed by repeated infiltra- tion of TEOS (tetraethyl-orthosilicate) into the pre-formed carbon. The impregnated carbon templates were heat-treated at 1600&#9702;C for 3 h in Ar to promote carbothermal reaction of SiO2 into biomorphic SiC.
Palavras-Chave: | Biomorphic SiC; Biotemplating; Degradação; Fungus degradation.
Thesagro: | Fungo; Madeira.
Thesaurus Nal: | fungi; softwood.
Categoria do assunto: | --
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (50800-1) - UPC - AP - DD -  -  -  - DIS