Determination of sintering kinetics of mullite by differential dilatometry

Küçük Resim Yok

Tarih

2009

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Maltepe Üniversitesi

Erişim Hakkı

CC0 1.0 Universal
info:eu-repo/semantics/openAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

Reaction sintering of zircon and alumina is an easy inexpensive route to obtain homogeneous mullite-zirconia composites with enhanced mechanical properties. In the present paper we studied the crystallization behaviour of the zircon and boehmite (as alumina source) mixtures. The powder of boehmite was obtained from partial dehydration of a gibbsite. Asreceived raw materials were weighed to produce the 3:2 alumina: silica stoichiometric mixture. All raw powders have been ball milling and then isostatically pressed followed by sintering at different temperatures. The non-isothermal activation energies for mullite crystallization were calculated by the Kissinger method using differential dilatometry. Analysis of the results showed of mullite crystals that bulk nucleation was dominant in mullite crystallisation followed by three-dimensional growth of mullite crystals with polyhedron-like morphology controlled by diffusion from a constant number of nuclei.

Açıklama

Anahtar Kelimeler

Kaynak

International Conference of Mathematical Sciences

WoS Q Değeri

Scopus Q Değeri

Cilt

Sayı

Künye

Belhouchet, H., Hamidouche, M. ve Bouaouadja, N. (2009). Determination of sintering kinetics of mullite by differential dilatometry. Maltepe Üniversitesi. s. 168.