Environmental issues regarding Cr6+ formation lead to replacing chrome-containing refractories with greener alternatives. MgO-containing compositions have been extensively investigated for this purpose, however, few studies evaluated the likelihood of using other chemical elements as inducers spinel-like phase in refractory castables. In study, addition zincite alumina-based castables was and c...

The effects of precursor powder uniformity on structure and electrical properties Gd-doped CeO2 (GDC) electrolytes were studied. as-synthesized GDCx powders (x = 5, 10 15 at.%) calcined at 600 1200?C combined in mass ratios 100:0 95:5 to obtain two with different particle size distributions. Sintering the pressed pellets was performed 1300 1400?C for h. Crystal structure, microstructure samples...

Boron carbide (B4C) is of interest in the armor community due to its combination extreme hardness and low density. However, it difficult utilize these properties many applications challenges associated with forming near-net shapes B4C, combined inherent sinterability without application external pressure. In this study, highly loaded (51 vol. %) aqueous B4C suspensions were developed injection ...

High strength transparent Y2O3 ceramics were fabricated from commercial powders using spark plasma sintering (SPS) technique by optimizing the heating rate. The rate significantly influenced microstructures and optical/mechanical properties of ceramics. Grain growth was limited accordingly with increasing ball milling process is likely to further enhance sinterability during SPS processing. den...

We present a comparison of the influence conditioning temperature microspheres made medical grade poly(L-lactide) (PLLA) and polylactide with 4 wt % D-lactide content (PLA) on thermal structural properties. The were fabricated using solid-in-oil-in-water method for applications in additive manufacturing. annealed below glass transition (Tg), above Tg but onset cold crystallization, at two tempe...