| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Makreski, Petre
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Piezoelectric PVDF‐TrFE nanocomposite mats filled with BaTiO<sub>3</sub> nanofibers: The effect of poling conditionscitations
- 2022Fabrication of biodegradable polyurethane electrospun webs of fibers modified with biocompatible graphene oxide nanofillercitations
- 2022A Unique Mechanochemical Redox Reaction Yielding Nanostructured Double Perovskite Sr2FeMoO6 With an Extraordinarily High Degree of Anti-Site Disordercitations
- 2020Structural Changes of TiO2 as a Result of Irradiation by E-Beam and X-Rayscitations
- 2019Effect Of Thermal Treatment Of Trepel At Temperature Range 800-1200˚Ccitations
- 2019Effects of the presence of probiotic bacteria in the aging medium on the surface roughness and chemical composition of two dental alloys
- 2015Characterization of Nanoscaled TiO2 Produced by Simplified Sol–Gel Method Using Organometallic Precursorcitations
Places of action
| Organizations | Location | People |
|---|
article
Effect Of Thermal Treatment Of Trepel At Temperature Range 800-1200˚C
Abstract
<jats:title>Abstract</jats:title><jats:p>Trepel is the local name for a mixture of diatomaceous earth and clay minerals. It represents a greyish, soft, very light, weakly cemented, fine biogenetic sedimentary rock. The studied material is taken from the vicinity of Bitola city (Republic of Macedonia). Here, trepel was treated up to three temperature intervals (800, 1000 and 1200<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_chem-2019-0132_ingr_001.png" />C) for a period of 1 hour. The X-ray powder diffraction results indicate the presence of both an amorphous phase and the following crystalline phases: quartz, feldspars (plagioclase), mica (muscovite) and chlorites. The results of SEM analysis revealed skeletons of alga Diatomeae with nano-pores. By thermal treatment of the samples, a gradual change in color as well as higher bulk density and compressive strength was observed. The increase of the temperature, in addition, affected the mineralogical composition and increased the presence of the amorphous phase (aluminasilicate glassy phase). SEM results of the thermally investigated samples depicted morphological changes expressed by shrinkage of the pore diameters in comparison to the initial material. The major and minor constituents were established by chemical analysis revealing the following chemical composition of raw trepel: SiO<jats:sub>2</jats:sub> (63.65 wt%), Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> (11.76 wt%), Fe<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> (5.93 wt%), MnO (0.13 wt%), TiO<jats:sub>2</jats:sub> (0.63 wt%), CaO (1.42 wt%), MgO (2.22 wt%), P<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub> (0.11 wt%), K<jats:sub>2</jats:sub>O (1.63 wt%), Na<jats:sub>2</jats:sub>O (0.92 wt%), LOI (11.50 wt%).</jats:p>