Bio-prototyping and thermoluminescence response of cellular rare earth ceramics

Full text
Author(s):	Santos, S. C. ^[1] ; Yamagata, C. ^[1] ; Campos, L. L. ^[1] ; Mello-Castanho, S. R. H. ^[1] Total Authors: 4
Affiliation:	^[1] IPEN, Sao Paulo - Brazil Total Affiliations: 1
Document type:	Journal article
Source:	Journal of the European Ceramic Society; v. 36, n. 3, p. 791-796, FEB 2016.
Web of Science Citations:	6
Abstract
The use of renewable materials is essential toward green economy. Vegetable structures are abundant, exhibit complex hierarchically built shape and an architecture that is promising to form functional materials. In this work using a mixture of rare earth oxides, which contain around 57 wt% yttrium oxide, cellular ceramics by bio-prototyping from the vegetable sponge Luffa cylindrica were produced and the thermoluminescence response was evaluated. By colloidal processing aqueous suspensions with 25 vol% solids content, pH 10,1 wt% deffloculant and 0.2 wt% binder exhibited shear thinning behavior and apparent viscosity suitable for replica method. By thermal treatment at 1600 degrees C for 2 h in air biomorphic rare earth ceramics with dense microstructure and reticulated architecture were produced. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process:	14/23621-3 - Development of ceramic materials based on rare earth doped yttria for application in radiation dosimetry
Grantee:	Silas Cardoso dos Santos
Support Opportunities:	Scholarships in Brazil - Post-Doctoral