Atom probe tomography (APT) and high resolution transmission electron microscopy (HRTEM) were used to study the co-precipitation and coarsening mechanisms of Al3(Zr1-x,Vx) precipitates formed in Al-Zr-V alloys. The strengthening mechanism that is operative in properly aged Al-Zr-V alloys are det...

The wetting behavior and interfacial phenomena of alumina, Zr-coated alumina, and bulk Zr with liquid aluminum at 700 °C was investigated by the sessile drop technique. Zirconium film deposited on alumina improved the wettability with aluminum and promoted the formation of the precursor film. W...

The aim of the present paper is to propose a new interpretation of the zirconium dissolution in liquid aluminum calorimetry experiments performed in the past in order to reconcile some apparently contradictory results and observations. It is supported by the development of a dissolution kinetics...

This work aims to explore zirconium as a possible dopant to promote thermoelectric performance in bulk ZnO-based materials, both within the single-doping concept and on simultaneous co-doping with aluminum. At 1100–1223 K mixed-doped samples demonstrated around ∼2.3 times increase in ZT as com...

The work presented in this paper is the continuation of our earlier publication (Barrachin et al., 2019) where the literature data on the calorimetric measurements of the zirconium dissolution in liquid aluminum at temperatures around 1000 K were carefully analyzed. In this previous study, we sh...

The mechanical properties and the related microstructure of metal-matrix composites (MMC) based on a high-alloyed CrMnNi steel with varying particle reinforcements (5% or 10 vol%) of magnesia partially stabilized zirconia and/or aluminium titanate were investigated. The powder metallurgical proc...

Nanostructured aluminum titanate (AT) was synthesized by the sol-gel method. The calcination temperature was selected as a processing variable to obtain different phase ratios of AT and its parent phases i.e. TiO2 and Al2O3. The main aim behind the present work was to cast light on the photocata...

Attapulgite (ATP) clay as an important ceramic raw material appears with natural nano-rod like morphology and widely co-exists with other minor minerals. To improve the mechanical performance and to reduce the sintering temperature of aluminium titanate (AT) ceramic membrane support, porous alum...

Magnesium aluminum titanate (Mg0.3Al1.4Ti1.3O5 and MgAl8Ti6O25) “MAT” based ceramics were successfully prepared by reaction sintering at a temperature of 1300 °C for 6 h starting from aluminum dross waste and rutile ore powders. Different mixtures of dross-(0–60 wt%) rutile were prepared. Th...

In the present work, nanostructured aluminum titanate (Al2TiO5 or AT) was synthesized by the sol-gel method and potential effects of mechanical strain on its phase analysis, morphology, and thermal stability were investigated in some details for the first time, because the thermal instability of...

This work aims at obtaining aluminum titanate-based ceramics (Al2TiO5: AT) composites from industrial wastes. Al-sludge waste and rutile ore were used as rich sources of alumina and titania instead of pure materials. Sludge-(0–40 wt%) rutile mixtures were mixed, formed and fired at 1350 °C for...

The synthesis of tialite was carried out by means of the solid state reaction technique using heterogeneous nucleation. The influence of the temperature of synthesis and simultaneous sintering (1250–1350 °C) on the yield of reaction and densification of the systems was investigated. Reference ...

Ceramics are known as a very brittle material. If this brittleness could be overcome, they can be applied in more fields. Itacolumite is regarded as a highly flexible rock for many narrow gaps at the grain boundaries in microstructure that allow a slight displacement of the particles when stress...

Stabilized aluminum titanate fibers were prepared via nonhydrolytic sol-gel (NHSG) method through linear self-assembly of precursors. The results show that NHSG method generates the heterogeneous condensation with the formation of Al–O–Ti, Mg–O–Ti, Fe–O–Ti, Mg–O–Al, Fe–O–Ti bonds, whic...

Strontium aluminate ceramics, including Sr3Al2O6, SrAl2O4 and Sr4Al14O25, synthesized by glycine–nitrate combustion and sintered at 1773 K in air, were characterized by thermal analysis, dilatometry and electrical measurements in controlled atmospheres. All studied strontium aluminates are semi...

(Eu2+, Dy3+)-co-doped strontium aluminate (SrAl2O4:Eu2+, Dy3+) powder as a mechanoluminescent (ML) phosphor was synthesized via soft mechanochemical pretreatment of precursor mixtures in a stirred media mill and subsequent calcination. Effect of soft mechanochemical pretreatment of precursors on...

The synthesis of strontium aluminate cement, the course of hydration and the thermal stability of hydrates are described in this work. The activation energy of the process of SrAl2O4 formation was calculated using the model-free Kissinger kinetic equation. The synthesis of the main clinker phase...

Nanosized strontium aluminate phosphors activated with Dy3+ were prepared by a combustion method. Nanophosphor was prepared by this method at reaction temperatures as low as 600 °C. Powder X-ray diffraction (XRD), scanning electron microscope analysis was used to characterize the prepared produ...

Ceramic pigments emitting long afterglow have enormous potential for emerging lighting applications that consume zero energy from the power grid. One of the most efficient compounds is strontium aluminate, when co-doped with 2 rare-earth elements — an optically active emitter, such as Eu2+, and...

This work presents a novel approach for evaluating the occlusal examination of artificial tooth based on the mechanoluminescence (ML) materials. The rare earth doped strontium aluminate (SrAl2O4: Eu2+, Dy3+; SAOED) was chosen as the ML material, which was further composited with the commercial d...