Porosity and Mechanical Properties of Porous Ti by Spark Plasma Sintering under Different Applied Produced Pressures
Year: 2024
Type: article
Abstract: Porous Titanium (Ti) is one of the leading biomedical materials with high biocompatibility, durability, high stability, and non-toxic to the human body. In this study, highly porous Ti have been fabricated by spark plasma sintering process using NaCl as a pore former (70% wt.), and then, NaCl was dissolved in water. All the samples were sintered at 625 °C and held there for 10 min under applied pressure ranging from 20 to 50 MPa with heating rate of 100 °C/min in vacuum. The results suggested that NaCl is a proficient porogen, the porosity of all samples was in the range of 66.95 - 68.8%. When the pressing pressure increased from 20 - 50 MPa, the porosity of the samples decreased but the size of the pores increased. The pore size concentrated in the range of 300 - 350 µm. This implies that the compression pressure plays a crucial role in influencing both the porosity and pore size of the titanium material produced using the SPS technique. The compressive strength is 18.42 - 25.23 MPa, and the elastic modulus is 0.35 - 1.05 GPa, which matches the strength and the modulus of elasticity of biological implants.
Source: Key engineering materials
DOI: 10.4028/p-ns5rje
Authors: Van Hao Pham, Nguyen Kim Khanh Linh, Nguyen Thi Ngoc, Tu Anh Nguyen, Thuan Quang Nguyen, Thao Thu Le, Trang Thuy Thi Nguyen, Vuong Hung Pham, Dang Quoc Khanh
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4405580716