Method: Six HVP/HE CP Ti 99.4%, grain size <150µm, powder compacts were manufactured. Tensile testing according to ISO 22674_2008_25 was performed. Specimens were metallographically prepared, and micro-hardness, SEM, EDS and XDR analyses were conducted and results compared with literature data for cast CP Ti for metal-ceramic systems.
Result: Tensile tests showed a mean value of proof strength of 0,2% non-proportional extension (Rp0,2) to be 589 MPa, Young modulus (E) 99 GPa and elongation after fracture (A) 11%. Data is comparable with ISO 22674_2008_25 type 4 metals intended for appliances with thin sections that are subject to very high forces. Micro-hardness testing showed a mean value of 167 HV 0,1. Density was determined at 4.47 – 4.5 g.cm-3. SEM showed a compact structure with very little porosity (0.2-0,5%) and EDS and XDR analyses showed pure alpha-faze titanium.
Conclusion: This research has shown that mechanical and structural properties of P/M HVP/HE CP Ti are comparable with commercial casting methods and can be considered for substructure manufacturing of metal-ceramic systems in prosthetic dentistry.