In this work, Al-B₄C nanocomposites were produced by microwave sintering and followed by hot extrusion processes. The influence of ceramic reinforcement (B₄C) nanoparticles on the physical, microstructural, mechanical, and thermal characteristics of the extruded Al-B₄C nanocomposites was investigated. It was observed that the density decreased and porosity increased with an increase in B₄C cont...

This work focuses on studying the role of drying and calcination on stiochiometry and crystallinity of deposited HA. Also, studying the effect of sintering temperature on phases generated, physical and mechanical properties of sintered HA powder compact at a range of (800-1200) ̊ C. Both Ca/P ratio and crystallinity were increased after calcination, where the Ca/P ratio raised from 1.7 to 1.9 an...

Energy dissipation on collisions of grain aggregates is investigated taking into account effects by sintering. It is shown that sintering significantly reduces the energy dissipation efficiency because contacts between adjacent grains become strong by sintering.

High Q ceramics of Ba3W2O9 (BW)-substituted Ba(Zn1/3Nb2/3) O3 (BZN) were prepared with a zero τf through the partial substitution of Zn by Ni and Co. The small concentrations of B-site vacancies introduced by the substitution of BW accelerated the kinetics and stability of the cation ordering and lowered the sintering temperature. Dense, zero τzf, ordered solid solutions such as 0.99Ba(Zn0.3Co0...

This paper describes the development of an innovative instrumented and automated 2.45GHz multimode microwave cavity for sintering uranium oxide based nuclear fuels (UO2, (U,Pu)O2, (U,Am)O2 …). The cell were designed using Finite Element simulation expertise acquired over years on heating. original setup allows hybrid homogeneous heating fuels. Reliable in situ monitoring samples' shrinkage temp...

To investigate the effect of sintering temperature and sintering time on arsenic volatility and arsenic leaching in the sinter, we carried out experimental works and studied the structural changes of mineral phases and microstructure observation of the sinter at different sintering temperatures. Raw materials were shaped under the pressure of 10 MPa and sintered at 1000~1350°C for 45 min with a...