CP Ti fabricated by low temperature extrusion of HDH powder: application in dentistry

Balog, Martin and Viskić, Joško and Krizik, Peter and Schauperl, Zdravko and Šnajdar, Mateja and Stanec, Zlatko and Ćatić, Amir (2016) CP Ti fabricated by low temperature extrusion of HDH powder: application in dentistry. = CP Ti fabricated by low temperature extrusion of HDH powder: application in dentistry. Key engineering materials, 704. pp. 351-359. ISSN 1013-9826. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. . Točan broj autora: 7.

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Official URL: https://www.scientific.net/KEM.704.351


Powder metallurgy (PM) commercial purity titanium (CP Ti) was fabricated and studied, with an aim of utilization for dental application. PM CP Ti was manufactured using a cost effective approach, where affordable hydrogenation–dehydrogenation (HDH) process Ti 99.4 wt.% powder was consolidated via the following sequence of PM techniques: cold isostatic pressing, warm vacuum pressing at 420 °C and warm direct extrusion at 500 °C. The paper presents the first studies on processing, microstructure, testing of mechanical properties, fatigue performance and bonding strength with different veneer coatings. By employed consolidation process sound material with low porosity (1.5%) and sustained oxygen content (0.21 wt.%) was attained. The tensile properties obtained for PM CP Ti (UTS = 701 MPa, YS0.2 = 512 MPa, ε = 13 %) were improved over to those for cast / milled CP Ti Grade 4 reference, the material commonly used in dentistry. Tested using the ISO 14801 standard for dental implants, the samples machined from PM CP Ti showed fatigue performance similar to CP Ti Grade 4. PM CP Ti used as a metal base material in restoration metal – ceramic systems showed very good bond strength with three commercially available veneering ceramics and complied with the ISO 9693 standard. Within the limitations of this paper, the preliminary results demonstrated that performance of economic PM CP Ti is equal or superior to CP Ti Grade 4 reference material and it can be used in prosthodontics.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): dentistry, extrusion, mechanical properties, powder metallurgy, prosthodontic, titanium, veneering
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 3 (05.03.2018.)
Date Deposited: 21 Sep 2016 07:25
Last Modified: 05 Mar 2018 12:19
URI: http://repozitorij.fsb.hr/id/eprint/6586

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