Preferences substantiation for non-destructive diagnostic methods selecting pores diffusion coefficient in block products

Abstract

The metrological analysis of non-destructive methods determined the diffusion coefficient in block products formed from porous materials is considered. The methods are based on both various types of pulsed effects on the products flat surface and their reaction monitoring in terms of electromotive force changes of an electrochemical converter. The developed technique obviates long transducer calibration stage for each new porous material and diffusing polar solvent, increasing the analysis efficiency. The analyzed methods application areas are substantiated in the context of ensuring acceptable accuracy including in the presence of pronounced anisotropy of properties.

Keywords

• porous materials
• block products
• diffusion coefficient
• non-destructive testing
• pulse methods