The diamond anvil cell is a fundamental tool for investigating properties under extreme conditions. However, our knowledge of material behavior under high pressure has been limited by a lack of measurement capability in radial directions. In this study we introduce a gasketing technique based on a combination of Kapton, amorphous boron, and epoxy, that reliably solves this issue. We demonstrate how these gaskets allow precise imaging of stress, strain, and microscopic properties such as texture and lattice preferred orientations within the sample, in situ, up to pressures in the range of 65 GPa.
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