the purpose of this study was to investigate the deposition of the hydroxyapatite (ha) coating via the electrophoresis procedure. the ha deposition was performed in an ethanol, methanol, acetone and isopropanol suspension. methanol was found to be the best deposition media. among the different environmental conditions, including the encapsulation of the samples under two vacuum types of pressur...

This work demonstrates the first proof-of-concept of Multi-Phase Flash Sintering (MPFS). novel technique essentially consists applying a rotating electric field to sample by means multi-phase voltage source as furnace temperature increases. Several ceramic materials with different types electrical conductivities are sintered within seconds at temperatures much lower than those used for traditio...

Microwave energy has been in use for variety of applications for over 50 years. These applications include communication, food processing, wood drying, rubber vulcanization, medical therapy, polymers, etc. In the last two decades microwave heating has been also applied very effectively and efficiently to heat and sinter ceramic materials. Microwave heating is recognized for its various advantag...

Sintering models at the atomistic, particle and component scales are briefly reviewed and problems in the current generation of sintering models are highlighted. A strategy of multi-scale modelling is proposed and our progress in the multiscale modelling is reported. Mathematical details of the models are left out and the paper is set out to demonstrate what is possible in the next generation o...

Various compositions of CeO2–Ce3Si2 (0, 10, 30, 50, and 100 wt%Ce3Si2) composites were fabricated using conventional sintering spark plasma sintering. Lower relative density, enhanced interdiffusion oxygen silicon, silicide agglomerations from the congruent melting Ce3Si2 at 1390 °C only observed conventionally-sintered pellets. Thermal conductivity sintered was calculated measured thermal diff...

Implementation of an accurate sintering model into a finite element simulation program can significantly improve Powder Metallurgy (P/M) part properties and processing efficiency. The densification and creep behavior of stainless steel powders during free sintering has been simulated and the material model has been implemented by linking user subroutines to the ABAQUS finite element code. This ...

Spark plasma sintering (SPS) or pulsed electric current sintering (PECS) is a sintering techni‐ que utilizing uniaxial force and a pulsed (on-off) direct electrical current (DC) under low at‐ mospheric pressure to perform high speed consolidation of the powder. This direct way of heating allows the application of very high heating and cooling rates, enhancing densifica‐ tion over grain growth p...

In lead-zinc sintering process, various kinds of lead-zinc concentrates and returning powder from ineligible sintering production are blended and then sintered in updraft sintering machine to produce agglomerate for imperial smelting process. It is required to determine a proper mixture ratio for these materials blended to assure sintering production indices such as agglomerate composition and ...