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New Processing of High Tc Superconducting Oxide Powder Disclosure Number: IPCOM000101054D
Original Publication Date: 1990-Jun-01
Included in the Prior Art Database: 2005-Mar-16

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Kang, SK Park, SI Tsuei, CC [+details]


Disclosed is a process to produce high Tc superconducting oxides with higher apparent physical density, and therefore higher current density. The powder processing technique used in the present investigation is called as "mechanical alloying" (1) which has been extensively used in the production of superalloys for applications as jet turbine materials (2,3). Mechanical alloying is a dry, high-energy ball milling process that produces composite metal alloy powders with a uniform dispersion of refractory particles in a complex alloy matrix. The mechanical alloying process is usually carried out in high-energy attrition mills or special ball mills.