Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Powderviscosity 1

Status
Not open for further replies.
mereaux

mereaux

Materials
Joined
Aug 30, 2004
Messages
20
Location
FR
hi!

Do you know how we can measure the viscosity of powder?
Does it exist a model to describe the viscosity of powder when it does not flow?

thank you

mereaux
 
Sort by date Sort by votes
Powders indeed have properties similar to liquids and flowability of powders to some extent corresponds to viscosity of liquids. There are other measures like flow function etc that are based on measurement of cohesion of powders. In allmost all variations of the measurement the shear stress is measured and plotted against the normal stress. From the curved line one calculates a flow function. Most of available equipment on the market performs calculations by a PC that is a part of the equipment. Search the google for "Jenike shear cell" or "Johanson indicizer" or "Freeman technology FT3powder rheometer" or "TSI aero-flow". A good source of information is the book "Powder Testing Guide" by L. Svarovsky, Elsevier Applied Science Publishers LTD 1987 ISBN 1-85166-137-9.
m777182
 
Upvote 0 Downvote
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top