Contact Us: 01763 262333
MCA Services
Permeability and pore tortuosity from mercury intrusion porosimetry
Tel: 01763 262333
Permeability and Tortuosity Measurement Sample   permeability   and   tortuosity   measurement   is   offered   as   an   extension   to   our   standard   mercury   porosimetry   analysis   options.   The   analysis also   includes   pore   size,   pore   volume   and   pore   area   characterisation   in   the   pore   size   range   3.5   nm   to   650   µm   as   well   as   bulk   density,   skeletal density   and   absolute   (%   volume)   porosity.   Porosity   and   permeability   are,   therefore,   determined   in   a   single   analysis   which   provides   a   wealth   of information in a short time-frame. Permeability   is   a   measure   of   fluid   or   gas   flow   through   a   porous   solid   sample.   It   is,   therefore,   of   considerable   interest   in   applications   where   a   solid material     interacts   with   a   liquid   or   gas.   Permeability   measurement   from   mercury   intrusion   analysis   was   originally   developed   with   regard   to geological samples, but it has since found significant application to a wide variety of sample types and sectors. Pore   tortuosity,   obtained   from   characteristics   of   pore   size,   pore   volume,   pore   area   and   permeability   is   a   measure   of   the   tortuous   pathway   of   pores through   a   sample:   essentially   a   representation   of   how   direct   the   pore   pathway   is   as   it   passes   through   a   sample.   This   can   be   particularly   useful when comparing samples.
Key Applications Investigation of relationship between solid and fluid media Passage and retention capabilities of fluids and gases Geological and geo-technical testing Petrology and Hydrology Battery electrodes: electrolyte flow & active site accessibility Battery separators: electrolyte flow properties Catalyst testing: accessibility to active sites Pharmaceuticals: dissolution and disintegration properties Filter media: flow and retention properties Membranes and papers: flow throughout properties Ceramics: flow throughput and capacity properties
Permeability and pore tortuosity from mercury intrusion porosimetry
The   calculation   of   permeability   requires   the   threshold   pressure   of   mercury   intrusion,   bulk   sample   density   and   absolute   sample   density.   Density values   are   calculated   from   the   accompanying   mercury   intrusion   analysis   whilst   determination   of   threshold   pressure   from   the   mercury   intrusion curve   requires   an   abundance   of   data   measurement   points.   Our   in-house   data   reduction   protocols   ensure   that   the   most   appropriate   values   are selected   and   applied   to   provide   the   most   accurate   permeability   of   each   specific   sample   analysed.   Pore   tortuosity   requires   sample   permeability and additionally a measure of pore area, which can also be applied directly from the accompanying mercury intrusion data.
Analytical Options and Highlights Measurement of sample permeability and tortuosity Assessment of fluid & gas flow characteristics through a sample Assessment of pore pathway through a sample Additional characterisation of sample porosity Pore volume Pore size distribution Pore Area Calculation of bulk and skeletal density Calculation of absolute (% volume) porosity Option for additional mercury extrusion analysis Graphical and numerical data reports
At   MCA   Services   we   have   decades   of   experience   in   the   analysis   and   characterisation   of   materials   and   are   always   happy   to   discuss   specific samples   and   applications.   The   flexibility   of   our   analytical   options   combined   with   our   expertise   ensures   that   the   most   appropriate   analytical   test, or   combination   of   tests,   are   selected   for   your   particular   sample,   application   and   requirements.   We   also   provide   assistance   with   the   interpretation of results and more information about these analytical options and the background operation and theory can be found on our YouTube channel.
MCA Services
01763 262333
Permeability and Tortuosity Measurement Sample   permeability   and   tortuosity   measurement   is   offered   as   an extension   to   our   standard   mercury   porosimetry   analysis   options. The   analysis   also   includes   pore   size,   pore   volume   and   pore   area characterisation   in   the   pore   size   range   3.5   nm   to   650   µm   as   well as    bulk    density,    skeletal    density    and    absolute    (%    volume) porosity.   Porosity   and   permeability   are,   therefore,   determined   in a   single   analysis   which   provides   a   wealth   of   information   in   a   short time-frame. Permeability   is   a   measure   of   fluid   or   gas   flow   through   a   porous solid    sample.    It    is,    therefore,    of    considerable    interest    in applications   where   a   solid   material     interacts   with   a   liquid   or   gas. Permeability   measurement   from   mercury   intrusion   analysis   was originally   developed   with   regard   to   geological   samples,   but   it   has since   found   significant   application   to   a   wide   variety   of   sample types and sectors. Pore   tortuosity,   obtained   from   characteristics   of   pore   size,   pore volume,   pore   area   and   permeability   is   a   measure   of   the   tortuous pathway   of   pores   through   a   sample:   essentially   a   representation of   how   direct   the   pore   pathway   is   as   it   passes   through   a   sample. This can be particularly useful when comparing samples.
Key Applications Investigation of relationship between solid and fluid media Passage and retention capabilities of fluids and gases Geological and geo-technical testing Petrology and Hydrology Battery electrodes: electrolyte flow Battery Electrodes: active site accessibility Battery separators: electrolyte flow properties Catalyst testing: accessibility to active sites Pharmaceuticals: dissolution and disintegration properties Filter media: flow and retention properties Membranes and papers: flow throughout properties Ceramics: flow throughput and capacity properties
Permeability and pore tortuosity from mercury intrusion porosimetry
The   calculation   of   permeability   requires   the   threshold   pressure   of mercury    intrusion,    bulk    sample    density    and    absolute    sample density.   Density   values   are   calculated   from   the   accompanying mercury    intrusion    analysis    whilst    determination    of    threshold pressure   from   the   mercury   intrusion   curve   requires   an   abundance of    data    measurement    points.    Our    in-house    data    reduction protocols   ensure   that   the   most   appropriate   values   are   selected and   applied   to   provide   the   most   accurate   permeability   of   each specific     sample     analysed.     Pore     tortuosity     requires     sample permeability   and   additionally   a   measure   of   pore   area,   which   can also   be   applied   directly   from   the   accompanying   mercury   intrusion data.
Analytical Options and Highlights Measurement of sample permeability and tortuosity Fluid & gas flow characteristics through a sample Assessment of pore pathway through a sample Additional characterisation of sample porosity Pore volume Pore size distribution Pore Area Calculation of bulk and skeletal density Calculation of absolute (% volume) porosity Option for additional mercury extrusion analysis Grap hical and numerical data reports
Permeability and pore tortuosity from mercury intrusion porosimetry
At   MCA   Services   we   have   decades   of   experience   in   the   analysis and   characterisation   of   materials   and   are   always   happy   to   discuss specific   samples   and   applications.   The   flexibility   of   our   analytical options    combined    with    our    expertise    ensures    that    the    most appropriate   analytical   test,   or   combination   of   tests,   are   selected for   your   particular   sample,   application   and   requirements.   We   also provide   assistance   with   the   interpretation   of   results   and   more information   about   these   analytical   options   and   the   background operation and theory can be found on our YouTube channel.