HIP Technology Enables Ceramic Manufacturers to Control Material Properties and Increase Productivity
Anders Eklund, Magnus Ahlforsdownload PDF
Abstract. Hot isostatic pressing (HIP) has been known for more than 50 years, and is considered today as being a standard production route for many applications. The HIP process applies high pressure (50-200 MPa) and high temperature (300-2,500°C) to the exterior surface of parts via an inert gas (e.g., argon or nitrogen). The elevated temperature and pressure cause sub-surface voids to be eliminated through a combination of mechanical deformation, plastic flow and diffusion. The challenge is to reach the highest possible theoretical density while maintaining productivity goals. Uniform rapid cooling is a process by which thin-walled pre-stressed wire-wound HIP units increase productivity up to 70% compared with natural cooling, and increase the density to ~ 100% of theoretical density for many alloys. The added cost to reach this density is around $0.20/kg for a large production HIP system, depending on the material.
Ceramic, Hot Isostatic Pressing (HIP), Heat Treatment, Zirconia, Dental Implants
Published online 2/11/2019, 6 pages
Copyright © 2019 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Anders Eklund, Magnus Ahlfors, HIP Technology Enables Ceramic Manufacturers to Control Material Properties and Increase Productivity, Materials Research Proceedings, Vol. 10, pp 24-29, 2019
The article was published as article 4 of the book Hot Isostatic Pressing
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