Light-Scattering Study of the Glass Transition in Lubricants-Reference-Cited by-同舟云学术

Light-Scattering Study of the Glass Transition in Lubricants

Published:1978-07-01 Issue:3 Volume:100 Page:418-422
ISSN:0022-2305
Container-title:Journal of Lubrication Technology
language:en
Short-container-title:

Author:

Alsaad M. A.¹,Winer W. O.¹,Medina F. D.²,O’Shea D. C.²

Affiliation:

1. School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Ga.

2. School of Physics, Georgia Institute of Technology, Atlanta, Ga.

Abstract

The sound velocity of four lubricants has been measured as a function of temperature and pressure using Brillouin scattering. A change in slope of the velocity as a function of temperature or pressure allowed the determination of the glass transition temperature and pressure. The glass transition data were used to construct a phase diagram for each lubricant. The data indicate that Tg increased with pressure at a rate which ranged from 120 to 200 C/GPa. The maximum pressure attained was 0.69 GPa and the temperature range was from 25 to 100 C.

Publisher

ASME International

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/100/3/418/5917319/418_1.pdf

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