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Moly Rhenium 50-50 alloy sheet commonly used in cathode and other high temperature compatible structures was evaluated using XRD, tensile testing, micro hardness, and metallography. The results were correlated with observed mechanical properties. Material condition and properties can be optimized for manufacturing.
Dispenser cathodes must operate at specific temperatures while applying specific heater powers. Designs to accomplish this have traditionally been empirically derived. In order to apply more systematic FEA methods better knowledge of the unique materials used in the heater package is needed. This investigation was launched to evaluate the thermal properties of the alumina materials used to encapsulate...
Using ECR plasma-assisted ing,?? YBa2Cu3O7-x films with c-axis orientation were grown epitaxially on (100) SrTiO3 substrates. YBa2Cu3O7-x films prepared by ECR plasma-assisted sputtering had a smaller lattice constant c and a higher Tc than films prepared by magnetron sputtering alone. Optical emisssion spectroscopy measurements were performed during deposition to investigate the relationship between...
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