Preparation of nanostructured TiO2 ceramics by spark plasma sintering

Spark plasma sintering of macroporous calcium phosphate scaffolds from nanocrystalline powders

“…The solid nanostructured ceramics and metals have been extensively studied and exhibited excellent mechanical properties. [13][14][15][16] However, the preparation of nanostructured porous scaffolds is a great challenge since nanocrystals have a rapid grain growth. Some researches tried to fabricate porous ceramics by SPS using a relative low pressure, for instance 5 MPa.…”

“…[13][14][15][16] The problem of grain growth in these nanostructured materials has been overcome to some extent by using SPS with final grain size below 200 nm, even below 100 nm can be achieved. 13,6 Recently, particular attention has been paid on using of SPS to prepare porous ceramics and alloys, for example, alumina, [17][18][19] aluminum, 20 titanium alloys, 21 etc. Optimized microstructures and improved mechanical properties have been achieved in these porous materials fabricated by SPS.…”

Effect of LZSA Glass-Ceramic Addition on Pressureless Sintered Alumina. Part I: Grain Growth

“…Moreover, the attainment of a fully dense ceramic plays an important role for achieving useful mechanical 4 , optical 5 and magnetic properties 6 . Fully dense polycrystalline ceramics has been successfully obtained by different processing routes, such as conventional sintering, hot pressing, hot isostatic pressing, microwaveassisted sintering 7 , spark-plasma sintering 8,9 , and millimeterwave radiation 10 . However, the suppression of grain growth also plays a crucial role.…”

Preparation of dense β-CaSiO3 ceramic with high mechanical strength and HAp formation ability in simulated body fluid

“…There have been many biomaterials prepared by spark plasma sintering. [21][22][23][24] For instance, dense HAp bioceramics and HAp-ZrO 2 ceramic composites have been successfully fabricated by using SPS technique, in which the decomposition of HAp and the loss of water have been prevented under a lower sintering temperature and very short processing time. 22 Other reports showed that SPS-sintered HAp ceramics had better bioactivity than those sintered by hot-pressing.…”