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High Tensile Strength Amalgams for In-Space Fabrication and RepairAmalgams are well known for their use in dental practice as a tooth filling material. They have a number of useful attributes that include room temperature fabrication, corrosion resistance, dimensional stability, and very good compressive strength. These properties well serve dental needs but, unfortunately, amalgams have extremely poor tensile strength, a feature that severely limits other potential applications. Improved material properties (strength and temperature) of amalgams may have application to the freeform fabrication of repairs or parts that might be necessary during an extended space mission. Advantages would include, but are not limited to: the ability to produce complex parts, a minimum number of processing steps, minimum crew interaction, high yield - minimum wasted material, reduced gravity compatibility, minimum final finishing, safety, and minimum power consumption. The work presented here shows how the properties of amalgams can be improved by changing particle geometries in conjunction with novel engineering metals.
Document ID
20060024671
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Grugel, Richard N.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Engineering (General)
Meeting Information
Meeting: 2006 National Space and Missile Materials Symposium
Location: Orlando, FL
Country: United States
Start Date: June 26, 2006
End Date: June 30, 2006
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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