the desired article configuration the sprayed deposit is removed from the mandrel and subjected to liquid phase sintering to provide the alloyed structure the formation of the thin walled structure by plasma spraying significantly reduces shrinkage and cracking while increasing physical properties of the structure over that obtainable by employing previously known powder metallurgical procedures application_number US 7652879 A description as briefly described above the present invention relates to a method for preparing thin walled articles of tungsten nickel iron alloy the articles so prepared are characterized by a uniform material density having a variance of less than 0 5 a small pore porosity distribution of less than 1 volume percent and a uniform tensile strength having a variance of less than 4 also these articles are characterized by exhibiting considerable less cracking and stress problems than thin walled articles prepared by previously utilized powder metallurgical procedures the method of fabricating the articles in accordance with the present invention is achieved by mixing measured portions of the alloy constituents into a homogeneous blend the alloy constituents comprise tungsten powder of a particle size in a range of about 5 to 30 u03bcm in a quantity adequate to provide 90 to 97 weight percent of the alloy nickel powder of a particle size in a range of 2 to 20 u03bcm and of a quantity adequate to provide 2 1 to 7 0 weight percent of the alloy and iron particulates in a particle size range of about 5 to 30 u03bcm and of a quantity adequate.