Results 21 to 30 of about 2,006 (195)

Produção de cerâmicas celulares por emulsão seguida de gelificação Production of cellular ceramics by gel casting ceramic emulsions

Cerâmica, 2011
As cerâmicas celulares têm sido produzidas por diferentes métodos, resultando em uma ampla faixa de estruturas e propriedades. Este trabalho descreve uma nova rota para a produção de cerâmicas celulares, a qual se baseia na gelificação de emulsões ...
E. de Sousa, M. Dellú Jr, V. C. Pandolfelli, F. S. Ortega   +3 more
doaj   +1 more source

Development and mechanical characterization of novel ceramic foams fabricated by gel-casting [PDF]

, 2013
Porous ceramic materials are of considerable interest for a variety of chemical and industrial applications in extremely harsh conditions, particularly at very high temperatures for long time periods.
Fornabaio, M., Gibson, Lorna, Lombardi, M., Palmero, P., Tulliani, J.-M.   +4 more
core   +1 more source

Rheological Properties and Curing Characteristics of Al₂O₃-SiO₂ Foam Slurries Containing Organic Gelling Agent

Cailiao gongcheng, 2017
The direct foaming method combined with gelcasting was employed to prepare mullite ceramic foam. Triacetin, polyimide and hydroxypropyl cellulose were creatively proposed as gelling agent for gelcasting process, respectively.
WANG Xin, ZHAO Lei, DU Xing, FANG Wei, HE Xuan, YE Lin-feng   +5 more
doaj   +1 more source

Effect of beating process to soda anthraquinone pulp of oil palm male flower spikes fibre [PDF]

, 2015
This study was carried out to investigate the effect of beating process to the characteristics of pulp and paper produced from oil palm oil male flower spikes (OPMFS). OPMFS pulp was prepared according to chemical Soda-AQ pulping process.
Adnan, S., Amir Shah, M.S.S., Esa, M.F., Ibrahim, M.H.I., Main, N.M., Masrol, S.R., Othman, M.H.   +6 more
core   +1 more source

Size optimization of silver nanoparticles synthesized by gelcasting using the Taguchi method [PDF]

Journal of Nanostructures, 2019
In the present study, silver nanoparticles were synthesized by decomposition of AgNO3 via gelcasting. Methacrylamide was used as a low toxic monomer for gel formation. Effect of monomer content (MAM), cross-linker to monomer ratio (MBAM/MAM), silver salt
Ali Askari Zadeh Mahani, Mehrdad Manteghian   +1 more
doaj   +1 more source

Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3 piezoceramics at the morphotropic phase boundary region [PDF]

, 2016
A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3 (BNT-xBT) piezoceramic system for 0.05 = x = 0.07 is performed. The samples are obtained through the conventional solid-state route.
Cerdeiras Montero, Elena, dos Santos, Valdeci B., García García, José Eduardo, Machado, Rodrigo, Mestres, Lourdes, Ochoa Guerrero, Diego A.   +5 more
core   +3 more sources

Produção e caracterização de espumas de alumina pelo processo gelcasting sem controle atmosférico Production and characterization of alumina foams by the gelcasting process without atmospheric contro

Cerâmica, 2009
O processo de gelcasting, associado à aeração de suspensões cerâmicas, permite a produção de espumas cerâmicas com uma ampla faixa de porosidade (50-90vol.%).
E. de Sousa, F. S. Ortega, V. C. Pandolfelli   +2 more
doaj   +1 more source

Octree-based production of near net shape components [PDF]

, 2008
Near net shape (NNS) manufacturing refers to the production of products that require a finishing operation of some kind. NNS manufacturing is important because it enables a significant reduction in: machining work, raw material usage, production time ...
Corney, J.R., Davies, J.B.C., Lim, T., Medellin, H., Ritchie, J.M.   +4 more
core   +1 more source

Influência do tempo de indução nas propriedades de hidroxiapatita porosa obtida por gelcasting de espumas Influence of the induction time on the properties of porous hydroxyapatite obtained by gelcasting foams

Cerâmica, 2007
Hidroxiapatita é uma cerâmica bioativa que permite o crescimento de tecido ósseo e revascularização da área implantada pela formação de ligação com a fase mineral dos ossos.
T. M. Volkmer, L. A. dos Santos
doaj   +1 more source

Processing and characterization of glass-ceramic foams belonging to the Li2O-ZrO2-Al2O3-SiO2 (LZSA) system produced by gelcasting [PDF]

, 2014
In this work the viscosimetry technique was used to evaluate the rheological characteristics of ceramic suspensions prepared with a LZSA (Li2O-ZrO2-SiO2-Al2O3) glass. From the rheological characterization it was possible to establish optimized conditions
Donadel, K., Oliveira, A.p.n, Pozzobom, I. E. F, Raupp-Pereira, F., Rodrigues-Neto, J.b., Trichês, Eliandra de Sousa   +5 more
core   +2 more sources