Characteristic of Wollastonite Synthesized from Local Raw Materials

Mohammed Obeid (Autor)

Buch | Softcover

8 Seiten

2015 | 15001 A. 1. Auflage
GRIN Verlag
978-3-656-93249-9 (ISBN)

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Research Paper (postgraduate) from the year 2014 in the subject Chemistry - Materials Chemistry, , language: English, abstract: In this study, wollastonite (CaSiO3) has been synthesized by solid state reaction method at temperature range of 1050-1300 C from local raw materials e.g. silica sand and limestone with addition of small amount of B2O3 as a mineralizer to activate the reaction process during sintering. The resulting products are investigated employing XRD and SEM techniques. beta-wollastonite was obtained at 1050 C and transformed to pseudowollastonite ( -CaSiO3) at 1150 C. Physical and thermal properties have been evaluated. The batch sintered at 1250 C showed the highest value of density of about 1.98 g/cm3 with high shrinkage rate as compared with other batches. The results also revealed that thermal expansion coefficient is more compatible with results obtained from natural wollastonite.

Erscheint lt. Verlag	15.4.2015
Sprache	englisch
Maße	148 x 210 mm
Gewicht	27 g
Themenwelt	Naturwissenschaften ► Chemie ► Allgemeines / Lexika
Schlagworte	characteristic • Local • Materials • Synthesized • Wollastonite
ISBN-10	3-656-93249-2 / 3656932492
ISBN-13	978-3-656-93249-9 / 9783656932499
Zustand	Neuware