The structure of porous nickel electrodes made by the powder metallurgical method

Mesostructural stipulation of properties of porous materials. I. Pore-structure analysis of porous materials

“…Among these materials, of interest is the process of producing high-porous powder materials using pore-forming agents. The papers [4,5] inform of such materials, but there is practically no research data on their quite complex porous structure determined by different factors: size and content of each component, composition of the starting powder mixture and pore-forming additive, compaction pressure, volume shrinkage in sintering, etc.When the pore-forming agent is removed, these materials represent a system of macro-and micropores [6,7]. In terms of structural hierarchy [8], macropores form mesostructure and micropores submesostructure.…”

“…When the pore-forming agent is removed, these materials represent a system of macro-and micropores [6,7]. In terms of structural hierarchy [8], macropores form mesostructure and micropores submesostructure.…”

Analysis of the Hydraulic Properties of Permeable Materials with Bimodal Porosity

“…In our experiment it is possible to identify D max and D por on the following bases. First, in [9] in studying porous carbonyl nickel sintered with a pore-forming agent (material similar to porous alloy Ni − 30% Mo in question) it has been shown by experiment that the pore diameters determined by the mercury pore measurement method (D por ) and by "forcing through" a bubble (D hydr ) have similar values. Second, in our case with forcing air through a specimen impregnated with water the magnitude of the pressure with which the first bubble appears and the basic number of bubbles were similar.…”