Assertion: honeycomb's porosity | /r/HasProperty | 40%
Facets:
value: in measuring of a mercury porosimetry
type: OTHER
value: preferably
type: DEGREE
Source sentences:
text: Preferably, the porosity of the hexagonal-cell honeycomb structure is 40% or less in measuring of a mercury porosimetry.
text: When the porosity is less than 40%, a partition wall passing flow rate increases, and the purification performance sometimes deteriorates.
text: When the porosity is more than 40%, there is the problem of a decrease in material strength.
text: In addition, when each characteristic value of the said honeycomb structure was measured using the mercury intrusion method mentioned above, the average pore diameter was 15 micrometers and the porosity was 40%.
text: The results of Examples 1 to 3 and Comparative Example 1 are the results when the porosity of the honeycomb structure is 40%, but the honeycomb structures manufactured in Examples 1 to 3 were manufactured in Comparative Example 1.
text: Furthermore, the porosity of the exhaust gas purifying honeycomb substrate 1 having the above structure is 40% or less.