Hot pressing of graded ultrafine-grained alumina bioceramics

High‐Frequency Induction Heat Sintering of Mechanically Alloyed Alumina–Yttria‐Stabilized Zirconia Nano‐Bioceramics

“…O ne of the main impediments to the use of nanostarter powders is their higher cost and the retainment of the nanostructure in the final product after exposure to elevated temperatures during conventional methods of powder consolidation 1,2 . On the other hand, the mechanical properties of nanoceramic structures are generally superior to those of conventional ceramics 2–4 . It is therefore essential to minimize grain growth through careful control of consolidation parameters, particularly sintering temperature and time.…”

“…1,2 On the other hand, the mechanical properties of nanoceramic structures are generally superior to those of conventional ceramics. [2][3][4] It is therefore essential to minimize grain growth through careful control of consolidation parameters, particularly sintering temperature and time. To this end, the technique of high-frequency induction heating sintering (HFIHS) has been shown to be an effective sintering method which can successfully consolidate nanoceramics and metallic powders to near theoretical density.…”

Joining Alumina and Sapphire by Growing Aluminium Borate Whiskers In-Situ, and the Whiskers’ Orientation Relationship with the Sapphire Substrate

“…Alumina is a kind of ceramic with high strength, outstanding electrical [1] and high temperature resistance [2], and excellent biocompatibility [3], which is a promising candidate for hip replacement material [4], abrasion protection material [5] and insulating barrier material in capacitors [6]. To realise these applications, alumina usually needs to be fabricated into complex structures.…”

Effect of Processing Parameters on the Mechanical and Microstructural Behavior of Ultra‐Fine Al2O3– (ZrO2+8%Mol Y2O3) Bioceramic, Densified By High‐Frequency Induction Heat Sintering

“…Then, Al 2 O 3 –YSZ composites obtained from these ceramic materials allow a good compromise between these mechanical properties. The mechanical properties of nanoceramics such as hardness and strength are generally superior to those of conventional ceramics 13–16 …”

“…The mechanical properties of nanoceramics such as hardness and strength are generally superior to those of conventional ceramics. [13][14][15][16] The purpose of this study was to help clarify the HFIHS process concerning the sintering of nonmetallic powders, that is, Al 2 O 3 -8YSZ powders. The effects of HFIHS conditions, such as sintering temperature, applied pressure, and heating rate, on the densification and microstructural behavior of Al 2 O 3 -8YSZ powder compacts were investigated systematically.…”