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Title: Measurement of surface tension and viscosity by open capillary techniques

Abstract

An open-channel capillary is provided, having preferably a v-shaped groove in a flat wettable surface. The groove has timing marks and a source marker in which the specimen to be tested is deposited. The time of passage between the timing marks is recorded, and the ratio of surface tension .gamma. to viscosity .mu. is determined from the equation given below: ##EQU1## where h.sub.0 is the groove depth, .alpha. is the groove angle, .theta. is the liquid/solid contact angle, and t is the flow time. It has been shown by the

Inventors:
 [1]
  1. (Albuquerque, NM), Yost,Frederick G. (Cedar Crest, NM)
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
871771
Patent Number(s):
5792941
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
measurement; surface; tension; viscosity; capillary; techniques; open-channel; provided; preferably; v-shaped; groove; flat; wettable; timing; marks; source; marker; specimen; tested; deposited; time; passage; recorded; ratio; gamma; determined; equation; below; equ1; depth; alpha; angle; theta; liquid; solid; contact; flow; shown; surface tension; contact angle; flow time; table surface; solid contact; v-shaped groove; /73/

Citation Formats

Rye,Robert R. Measurement of surface tension and viscosity by open capillary techniques. United States: N. p., 1998. Web.
Rye,Robert R. Measurement of surface tension and viscosity by open capillary techniques. United States.
Rye,Robert R. Thu . "Measurement of surface tension and viscosity by open capillary techniques". United States. https://www.osti.gov/servlets/purl/871771.
@article{osti_871771,
title = {Measurement of surface tension and viscosity by open capillary techniques},
author = {Rye,Robert R.},
abstractNote = {An open-channel capillary is provided, having preferably a v-shaped groove in a flat wettable surface. The groove has timing marks and a source marker in which the specimen to be tested is deposited. The time of passage between the timing marks is recorded, and the ratio of surface tension .gamma. to viscosity .mu. is determined from the equation given below: ##EQU1## where h.sub.0 is the groove depth, .alpha. is the groove angle, .theta. is the liquid/solid contact angle, and t is the flow time. It has been shown by the},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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