(AT12292-U2)   NOVELTY - The method for producing an artificial article from gelatin and/or glue, comprises treating the article with alum solution, removing the brittle article from the alum solution, melting the article in a closed vessel in the sand or water bath under pressure, depending on degree of hardness of up to 5 atmospheres, at a temperature of 60-100 degrees C, casting the article in blocks up to 50 cm thickness by dissolving in glycerol, oils, resins or sulfuric acid clay, coloring the article, hardening the article with formaldehyde, and drying the article.    USE - The method is useful for producing an artificial article such as horn, bone, tortoise shell, mother of pearl, semi-precious stones, ivory and/or leather from gelatin and/or glue.    ADVANTAGE - The method ensures efficient production of the artificial article in the desired structure with fire resistance and without bad odor.    DETAILED DESCRIPTION - The tubular target (100) made of refractory metal or a refractory metal alloy, comprises a refractory metal portion of greater than or equal to 50 at.% comprising a tubular portion X (200, 201) having a relative density (RDx) and a tubular portion Y (300) having a relative density (RDy), where: the tubular portion X has a larger outer diameter than the tubular portion Y; and a density ratio satisfies an equation that is expressed by (RDy-RDx)/RDy greater than or equal to 0.001. The tubular portion X comprises an outer diameter (ADx), and the tubular portion Y comprises an outer diameter (ADy), where the ADx-ADy/ADx is less than or equal to 0.3. Tubular ends are partially designed as the tubular portion X. The tubular portion Y: is arranged between the tubular ends; extends in an axial direction over an extended area than the sum of an axial extension of the tubular portion X; and has a relative density of 99-100%. A portion Z is arranged between the tubular portion X and the tubular portion Y, where the outer diameter of the portion Z is changed by ADx and ADy. The tubular portion X: is formed in a conical-shaped- and a one-piece manner; and further comprises a fine and even pore structure, and an average relative density (RDxm) over a length of 50 mm in the axial direction. The tubular target is produced by a powder metallurgy. The tubular portion X and the tubular portion Y comprise the same material composition. The tubular portion Y further comprises, over a length (50 mm) in the axial direction, an average relative density (RDym), where the RDym-RDxm/RDym is greater than or equal to 0.001. A ratio of the (RDy-RDx)/RDy and the (RDym-RDxm)/RDym is less than or equal to 0.2. An INDEPENDENT CLAIM is included for a method for producing a tubular target from refractory metal or a refractory metal alloy by sintering and local deformation of different degree.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of an outer contour of the tubular target for preparing a function layer.    Tubular target (100)    Tubular portion X (200, 201)    Tubular portion Y. (300)