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Characteristic of Wollastonite Synthesized from Local Raw Materials

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Characteristic of Wollastonite Synthesized from Local Raw Materials
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  1. Beskrivelse

    Research Paper 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. ß-wollastonite was obtained at 1050 ¿C and transformed to pseudowollastonite (a-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.

  2. Yderligere info
    Udgivelsesdato:
    01-04-2015
    Sprog:
    Engelsk
    ISBN13:
    9783656932499
    Sidetal:
    12
    Vægt:
    50 g
    Dybde:
    1 mm
    Bredde:
    178 mm
    Højde:
    254 mm
    Mærkat:
    Bog, hæftet
    Format:
    Hæftet
  3. Anmeldelser

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