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oa Properties of Additively Manufactured Platinum-Rhodium Alloys
Investigating the feasibility of additive manufacturing for glass fibre bushings
- Source: Johnson Matthey Technology Review, Volume 67, Issue 3, Jul 2023, p. 266 - 277
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- 09 Dec 2021
- 09 Feb 2022
- 05 May 2023
Abstract
Bushings made of platinum-rhodium alloys are a key component in glass fibre production. While bushings have grown in size and functionality since their introduction in the early 20th century, manufacturing constraints still limit their full potential. Both in terms of design and quality, traditional manufacturing methods such as milling, drilling and welding limit the potential of precious metal bushings. The technical feasibility of the use of additive manufacturing for the production of bushings is greatly dependent on the material properties. For the purpose of this work, an additively manufactured alloy consisting of 90 wt% platinum and 10 wt% rhodium (PtRh10) is investigated with regard to density, electrical resistivity, creep performance and the contact angle of E-glass on the PtRh10 samples.