Ceramic material from basaltic tuffs


ERGUL S., Akyildiz M. , Karamanov A.

INDUSTRIAL CERAMICS, cilt.27, ss.89-94, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 27 Konu: 2
  • Basım Tarihi: 2007
  • Dergi Adı: INDUSTRIAL CERAMICS
  • Sayfa Sayıları: ss.89-94

Özet

The possibility to obtain a cheap ceramic material based on 50 wt % basaltic tuffs and 50 wt % industrial clays was studied. The tuffs were characterized by optical microscopy, X-ray diffraction and differential thermal analysis. It was shown that this material is appropriate for the ceramic industry: it is easy for milling and is characterized by low liquidus temperature. The sintering behaviour of the ceramic was evaluated by hot-stage microscopy and dilatometry The structure of samples, heat-treated at different temperatures, were observed by scanning electron microscopy while the densification degree was evaluated by dry flow and gas pycnometery. Samples with 13% total porosity and 4% water absorption were obtained at 1150 degrees C for 30 min soaking.

The possibility to obtain a cheap ceramic material based on 50 wt % basaltic

tuffs and 50 wt % industrial clays was studied. The tuffs were characterized by

optical microscopy, X-ray diffraction and differential thermal analysis. It was

shown that this material is appropriate for the ceramic industry: it is easy for

milling and is characterized by low liquidus temperature. The sintering behaviour

of the ceramic was evaluated by hot-stage microscopy and dilatometry. The

structure of samples, heat-treated at different temperatures, were observed by

scanning electron microscopy while the densification degree was evaluated by

dry flow and gas pycnometery. Samples with 13% total porosi