Study of the microstructure of ceramics from different producers used for protecting precious metal thermocouples

Autor: I. L. Shkarupa, A. A. Ulanovskii, L. A. Plyasunkova
Rok vydání: 2008
Předmět:
Zdroj: Refractories and Industrial Ceramics. 49:272-276
ISSN: 1573-9139
1083-4877
Popis: Results are provided for a study of the microstructure of ceramics from four different producers by means of a scanning electron microscope and x-ray microanalysis. Results show that ceramic specimens often do not correspond to claimed parameters. The main disadvantages are ceramic structural inhomogeneity, presence of phases of a different nature, intergranular pores and cracks, and alkali impurities. The ceramics of only one producer correspond to the main parameters for this class, and this is provided by high production technology and starting material quality.
Databáze: OpenAIRE