Forming near net shape free-standing components by plasma spraying

A. Devasenapathi, H.W. Ng, Ching Man Yu, A.B. Indra

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

The capability of plasma spraying for producing near net shape, free-standing components of metallic, ceramic and layered composites with alternate ceramic and metallic layer systems was studied. A simple and efficient mold mandrel with attachments to release the sprayed component was designed and machined. The plasma spraying was carried out, with powders of nickel and zirconia-8 wt.% yttria to form shapes such as nozzles, cones and cylinders. The plasma spray parameters and the mold mandrel operation were standardized by trial and error to produce the near net shapes. The microstructure, fracture morphology and microhardness of the sprayed components were studied. The study showed that the shapes constituting metallic, ceramic and layered composites with alternate layers of ceramic and metallic materials could be successfully formed by plasma spraying. © 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)882-886
Number of pages5
JournalMaterials Letters
Volume57
Issue number4
DOIs
Publication statusPublished - 1 Dec 2002
Externally publishedYes

Keywords

  • Fracture morphology
  • Layered composite
  • Microhardness
  • Mold mandrel
  • Near net shape
  • Plasma spraying

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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