Comparative study of calcium silicate bulk systems produced by different methods

K. Sinkó, A. Meiszterics, L. Rosta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The aim of this study is to prepare bulk calcium silicate system that exhibits suitable properties to be used for biomedical applications. Glass-ceramics of composition CaO·SiO2 were produced by sol-gel technique starting from tetraethoxysilane and calcium nitrate tetrahydrate and by melt-quenching technique using a mixture of CaCO3 and SiO2. The traditional power technology requires 1500°C temperature to produce ceramic bulks; contrarily the sol-gel technique 700°C. Their structures were compared by means of thermoanalysis, X-ray diffraction, and small angle X-ray scattering. In the melt-quenched samples, the crystalline feature is dominated; the gel-derived samples are rather amorphous. The mechanical property of the calcium silicate materials obtained by different preparation routes were characterized by Brinell hardness test. The melt-quenching technology provides the glass-ceramics product with high mechanical strength at 1500°C; the gel derived products achieve this mechanical strength already after a heat treatment at 700°C. The gel derived product prepared with ammonia catalyst proved to be the hardest, most compact matter.

Original languageEnglish
Title of host publicationColloids for Nano- and Biotechnology
EditorsZoltan Horvolgyi, Eva Kiss
Pages130-138
Number of pages9
DOIs
Publication statusPublished - Dec 1 2008

Publication series

NameProgress in Colloid and Polymer Science
Volume135
ISSN (Print)0340-255X

Keywords

  • Bioceramic
  • Calcium silicate
  • Melting
  • Sol-gel method

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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  • Cite this

    Sinkó, K., Meiszterics, A., & Rosta, L. (2008). Comparative study of calcium silicate bulk systems produced by different methods. In Z. Horvolgyi, & E. Kiss (Eds.), Colloids for Nano- and Biotechnology (pp. 130-138). (Progress in Colloid and Polymer Science; Vol. 135). https://doi.org/10.1007/2882-2008-094