Novel preparation of a porous composite insulating scaffold from forsterite and sodium carbonate media

Jun Ding; Chengji Deng; Hongxi Zhu; Xiaojun Zhang; Ding Guo

doi:10.3139/146.111117

Published by De Gruyter November 17, 2014

Novel preparation of a porous composite insulating scaffold from forsterite and sodium carbonate media

Jun Ding , Chengji Deng , Hongxi Zhu , Xiaojun Zhang and Ding Guo

From the journal International Journal of Materials Research

https://doi.org/10.3139/146.111117

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Abstract

Porous composite insulating scaffolds were prepared from mixtures of forsterite, salt (Na₂CO₃), and phenolic resin by sintering at 900 to 1 100 °C for 10 h, and the sintering behaviour and mechanical properties were examined. The results show that the changes in temperature did not significantly affect the phases present in the samples. However, changing the Na₂CO₃ content of a sample will change its phase composition. When the Na₂CO₃ content was 40 wt.% and sintering undertaken at 1 000 °C, the apparent porosity of the sample was 57 %, and its strength was 3.1 MPa. The large number of pores in the samples had diameters of approximately one micron, while the mesopores had diameters concentrated over the interval of 3 to 5 nm.

Keywords: Forsterite; Porosity; Sodium carbonate media; Reaction mechanism

* Prof. Dr. Chengji Deng, The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947, Heping Road, Wuhan 430081, P.R. China. Tel.: +86-27-68862041, Fax: +86-27-68862085, E-mail: cjdeng@wust.edu.cn

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Received: 2014-02-18

Accepted: 2014-05-07

Published Online: 2014-11-17

Published in Print: 2014-11-10

Novel preparation of a porous composite insulating scaffold from forsterite and sodium carbonate media

Abstract

References

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