Production of anorthite from kaolinite and CaCO3 via colemanite

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Atıf İçin Kopyala

Mergen A., Kayed T., Bilen M., Qasrawi A., Guru M.

EURO CERAMICS VIII, PTS 1-3, ss.1475-1478, 2004 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Basım Tarihi: 2004
• Doi Numarası: 10.4028/www.scientific.net/kem.264-268.1475
• Dergi Adı: EURO CERAMICS VIII, PTS 1-3
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
• Sayfa Sayıları: ss.1475-1478
• Gazi Üniversitesi Adresli: Evet

Özet

Boron oxide has been found to be useful flux for the preparation of dense anorthite ceramics (CaO.Al2O3.2SiO(2)). Inexpensive starting materials of kaolinite, calcium carbonate and silica were used for anorthite ceramic production. Colemanite (2CaO.3B(2)O(3).5H(2)O) was added into the mixtures and the effects of colemanite upon the transformation towards anorthite and on the densification were investigated between 900-1400 degreesC. Single phase anorthite ceramic formed at lower temperatures in boron containing mixtures. Boron containing powder compacts were sintered above 90% theoretical density at 1350 degreesC.