OBTAINMENT OF BARIUM TITANATE CERAMIC SAMPLES AND DETERMINATION OF THEIR BASIC PHYSICOCHEMICAL PROPERTIES.

Autor: GEORGIEVA, A. A., YOVKOVA, F. S., GEORGIEVA, M. A., PANAYOTOVA, K. Z.
Předmět:
Zdroj: Oxidation Communications; 2023, Vol. 46 Issue 2, p450-458, 9p
Abstrakt: Technical ceramics is characterised by high bending strength, high melting temperature. It has high thermal and wear resistance but its usage is limited to some extent due to its low resistance to cracking and bad electric conductivity. The introduction of carbon fillers in ceramic matrices is an effective approach to solving these problems. The present paper reports for the manufacturing of ceramic samples based on barium titanate with added graphene structures obtained from three different graphene sources. The barium titanate ceramics is synthesised by the method of solid state sintering. For the characterisation of the initial blends and the ceramic samples prepared from them, the methods of X-ray phase analysis, infrared spectroscopy, scanning electron microscopy and visual microscopy were used. Besides, the basic physicochemical properties of the samples synthesised on the basis of barium titanate were determined, e.g. water absorption (WA, %), apparent density (AD, %) and apparent (open) porosity (Pa, %). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index