TARGET EVAPORATED UNDER ELECTRON BEAM, METHOD OF FABRICATING IT, THERMAL BARRIER AND COATING OBTAINED FROM TARGET AND MECHANICAL PART INCLUDING THE COATING

摘要

PROBLEM TO BE SOLVED: To provide a composite target in the form of a bar made of ceramic powder and designed to be evaporated under an electron beam.

SOLUTION: The target comprises zirconia and at least one zirconia stabilizer. In characteristic manner, the target is characterized in that the zirconia stabilizer is at a molar content lying in the range of 2 to 30% and in that the zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporating under an electron beam.

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