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Opportunity at U.S. Army Research Laboratory (ARL)

Behavior of Materials under Extreme Pressures and Temperatures

Location

Weapons and Materials Research Directorate, Material Behavior

RO# Location
76.30.09.B3188 Aberdeen Proving Ground, MD 210055066

Advisers

Name E-mail Phone
Weerasooriya, Tusit tusit.weerasooriya.civ@mail.mil 410-306-0969

Description

Research involves exploratory and advanced development leading to novel experimental techniques to determine the behavior of materials at high pressures and high temperatures achieved at a rapid rate (i.e., in less than a few microseconds or nanoseconds). Typical activities focus on elucidating the relationship between the structure and properties of materials. These materials include ceramics, heavy alloys, polymer, and metal matrix and ceramic composites. Properties of interest include elastic constants at high pressures and temperatures, shock response of solids, stability of pore under high pressure, dispersion of sound waves in composites, shear strength of solids, phase transformations, equation of state, refractive index, electrical conductivity, sound speed in porous materials, dielectric constants of porous solids, compaction of powders for material synthesis under extreme pressures and temperatures. Experimental facilities include single and two stage gas guns, piezoelectric and piezoresistive gages, and interferometer.

 

Keywords:
Calorimetry; Materials science; Thermal conditions and measurements; Pressure effects and measurements; Shear forces; Porosity; Ceramic matrix composites; Metal matrix composites; Polymers; Alloys;

Eligibility

Citizenship:  Open to U.S. citizens, permanent residents and non-U.S. citizens
Level:  Open to Postdoctoral applicants
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