Accession Number:

AD0744106

Title:

The Shear and Thermal Stress Behavior of a Superrefined Mineral Oil and a Fluorosilicone

Descriptive Note:

Technical rept. Oct 1970-Apr 1971

Corporate Author:

AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

• Brooks, Fredrick C.

Report Date:

1972-01-01

Pagination or Media Count:

51.0

Abstract:

Two high temperature hydraulic fluids were characterized as to their shear and thermal stress behavior in the environment of a new small-volume high- temperature evaluation stand. A dewaxed super refined mineral oil MIL-H-27601 was investigated at 550, 600, 625, and 700F and exhibited no significant degradation to 600F in the inerted system environment. A modified fluorosilicone MLO-70-79 was investigated at 600F and experienced a significant loss in viscosity 100F after 58 hours of environmental residence.

Descriptors:

• *HYDRAULIC FLUIDS
• CORROSION
• DEGRADATION
• THERMAL STABILITY
• HALOGENATED HYDROCARBONS
• MINERAL OILS
• VISCOSITY
• SILICONES

Subject Categories:

• Lubricants and Hydraulic Fluids

Distribution Statement:

APPROVED FOR PUBLIC RELEASE