Microstructural characterization and thermal properties of aluminium titanate/porcelain ceramic matrix composites

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Sacli M., Onen U., Boyraz T.

Acta Physica Polonica A, cilt.127, sa.4, ss.1133-1135, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Özet
  • Cilt numarası: 127 Sayı: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.12693/aphyspola.127.1133
  • Dergi Adı: Acta Physica Polonica A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1133-1135
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

Porcelain represents one of the most complex ceramics, formulated from a mix of clay, feldspar and quartz, sintered at temperatures between 1200 degrees C and 1400 degrees C, to form a glass-ceramic composite. Aluminium titanate (Al2TiO5) exhibits extremely good thermal shock resistance and low thermal conductivity, coupled with good chemical resistance in molten metals. In the present work, aluminium titanate/porcelain ceramics composites with different percentages of Al2TiO5 was prepared using powder metallurgy techniques. The microstructural, mechanical and thermal properties were characterized using XRD, SEM, dilatometer and a hardness meter. Thermal shock resistance behaviour under water quenching of the as-prepared ceramics was also evaluated. The results have revealed that the addition of aluminium titanate to porcelain matrix improves the properties of the aluminium titanate/porcelain ceramics.