MODELING AND THE SPUTTER DEPOSITION OF COATINGS ONTO SPHERICAL CAPSULES

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The sputter deposition of coatings onto capsules of polymer and oxide shells as well as solid metal spheres is accomplished using a chambered substrate platform. Oxides and metal coatings are sputter deposited through a screen-aperture array onto a 0.3-1.2 mm diameter, solid spheres and hollow shells. Each shell is contained within its own individual chamber within a larger array. Ultrasonic vibration is the method used to produce a random bounce of each capsule within each chamber, in order to produce a coating with uniform thickness. Characterization of thin aluminum-oxide coated, platinum solid spheres and thicker copper-gold layer coated, hollow capsules ... continued below

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Jankowski, A F & Hayes, J P September 19, 2006.

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The sputter deposition of coatings onto capsules of polymer and oxide shells as well as solid metal spheres is accomplished using a chambered substrate platform. Oxides and metal coatings are sputter deposited through a screen-aperture array onto a 0.3-1.2 mm diameter, solid spheres and hollow shells. Each shell is contained within its own individual chamber within a larger array. Ultrasonic vibration is the method used to produce a random bounce of each capsule within each chamber, in order to produce a coating with uniform thickness. Characterization of thin aluminum-oxide coated, platinum solid spheres and thicker copper-gold layer coated, hollow capsules (of both glass and polymer) show that uniform coatings can be produced using a screen-aperture chambered, substrate platform. Potential advantages of this approach compared to open-bounce pans include improved sample yield and reduced surface roughness from debris minimization. A process model for the coating growth on the capsules is developed to assess selection of the screen aperture based on the effects of sputter deposition parameters and the coating materials.

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PDF-file: 15 pages; size: 0.2 Mbytes

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  • Presented at: International Conference on Metallurgical Coatings and Thin Films, San Diego, CA, United States, Apr 23 - Apr 27, 2007

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  • Report No.: UCRL-CONF-224597
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 907861
  • Archival Resource Key: ark:/67531/metadc884804

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Office of Scientific & Technical Information Technical Reports

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  • September 19, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 29, 2016, 8:19 p.m.

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Jankowski, A F & Hayes, J P. MODELING AND THE SPUTTER DEPOSITION OF COATINGS ONTO SPHERICAL CAPSULES, article, September 19, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc884804/: accessed May 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.