Tantalum has the characteristics of high melting point, high strength, corrosion resistance, high thermal stability, high thermal conductivity, excellent bioinertness and biocompatibility, and no radioactivity. Its unique physical and chemical properties make it play a unique application value in aerospace, aviation, electronics industry, medical implants and other fields. For example, in aviation applications, tantalum molded parts can adapt to extremely high temperature working environments, assist engines and combustion chambers to improve combustion efficiency and produce a greater thrust-weight ratio.
In medical implants, porous tantalum, with its typical characteristics of high volume porosity, low elastic modulus and high surface friction coefficient as well as good biocompatibility, can reduce the "stress shielding" effect (namely, the phenomenon of osteoporosis caused by insufficient mechanical stimulation of adjacent bones due to high hardness of implants), which is more conducive to postoperative recovery of patients. And give implants a longer life.
Tantalum is a refractory metal with a melting point close to 3000℃. The forming of this material requires a high quality of spot of the equipment and requires stable energy output. Tantalum in the forming process, because of the forming stress, the parts are easy to crack, need to optimize the forming process to avoid such problems. Printed tantalum sample (tensile strength: 489.1Mpa; Yield strength: 441.4Mpa; Elongation after fracture: 32.55%; Section shrinkage: 83.43%).
