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New semi-isostatic high velocity compaction method to prepare titanium dental copings
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0002-7514-0513
Nobel Biocare AB.
Nobel Biocare AB.
Vise andre og tillknytning
2004 (engelsk)Inngår i: Powder Metallurgy, ISSN 0032-5899, E-ISSN 1743-2901, Vol. 47, nr 4, s. 335-342Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A new method to prepare titanium dental copings from titanium powder was tested, involving high velocity compaction and various elastic forms, which were used to achieve a semi-isostatic effect during the impact. The tooth preparation die (mandrel) and the powder were placed inside an elastic form. The impact struck the elastic form, and the powder was compacted against the tooth preparation die. Several different elastomers were tested to find the best one. Cross-sections of the powder bodies were studied for density variations. The soft, flexible elastomer worked best to compact the powder. The highest densification could be focused closest to the mandrel where the coping should be milled out. The density in the highest density areas could locally reach 98-99%. If the method with elastic forms could be optimised to give as high a density as without elastic forms, a lower shrinkage and possible deformation of the copings could be reached.

sted, utgiver, år, opplag, sider
2004. Vol. 47, nr 4, s. 335-342
HSV kategori
Forskningsprogram
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URN: urn:nbn:se:ltu:diva-12412DOI: 10.1179/003258904225020828ISI: 000226898500016Scopus ID: 2-s2.0-13844319521Lokal ID: b8f8f3e0-fafb-11db-b816-000ea68e967bOAI: oai:DiVA.org:ltu-12412DiVA, id: diva2:985363
Merknad
Validerad; 2004; 20070505 (cira)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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