A Split Sphere 60,000 Ton Press
An interesting type of multi-anvil device is the split sphere which appears to have originated with Von Platen  and was further developed by Kawai [2,3]. It consists of geometrically equal tapered anvils (usually 6 or 8) which form a sphere with a sample cavity at the center. A compressible gasket material is placed between the tapered faces so that the anvils can move inward under an external load. The gasket material also electrically insulates the anvils from each other, thus providing a number of independent electrical leads.
KeywordsTungsten Carbide Boron Carbide Electrical Lead Hugoniot Elastic Limit Effective Elastic Constant
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