A5049762209- Advanced ceramic materials synthesis
- Luminescence Properties of Advanced Materials
- Advanced materials and composites
- Recycling and utilization of industrial and municipal waste in materials production
- Aluminum Alloys Composites Properties
- Metal and Thin Film Mechanics
- MXene and MAX Phase Materials
- Inorganic Chemistry and Materials
- Radiation Detection and Scintillator Technologies
- Gas Sensing Nanomaterials and Sensors
- Waste Management and Environmental Impact
- Advanced Thermoelectric Materials and Devices
- Intermetallics and Advanced Alloy Properties
- Nuclear materials and radiation effects
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Concrete and Cement Materials Research
- Boron and Carbon Nanomaterials Research
- Chemical Synthesis and Characterization
- Glass properties and applications
- Thermal Expansion and Ionic Conductivity
- Semiconductor materials and devices
- Ammonia Synthesis and Nitrogen Reduction
- Recycled Aggregate Concrete Performance
- Additive Manufacturing and 3D Printing Technologies
Silesian University of Technology
2012-2022
Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research
2016
Silesian University in Opava
2011
Slovinski National Park
2011
Katowice School of Technology
1998
Eindhoven University of Technology
1995
Aluminium-based hybrid composites are a new class of advanced materials with the potential satisfying demands in engineering applications. This paper describes effects carbon addition on formation and properties AMC SiC nanoparticles reinforcement. The were produced via mechanical alloying followed by hot pressing. Three forms carbon, graphite (GR), multiwalled nanotubes (CNTs), and, for first time, glassy (GC), used manufacturing compared tribological Al-SiC composite without addition. GC...
The paper presents the method of preparation YAG:Ce precursor powder with ability for synthesis at lower temperature.Mechanochemical processing an initial mixture was used as a preliminary step subsequent high-temperature treatment precursor.The specific surface area, phase composition and luminescence properties were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) photoluminescence (PL) spectroscopy.It has been shown that YAG structure formed temperature 300 • C...
The process of persistent luminescence or glow-in-the-dark, the delayed emission light irradiated substances, has long fascinated researchers, who have made efforts to explain underlying physical phenomenon as well put it practical use. However, is an elusive and difficult process, both in terms controlling altering its properties, providing a quantitative description. In this paper, we used SrSi2N2O2:Eu2+ model phosphor, characterized by broad distribution structural defects exhibiting...
Depth sensing indentation tests were carried out to obtain load–penetration depth curves of SiAlON–ZrO2 ceramics under different peak loads ranging from 200 1800 mN. The values hardness (HOP, HCC) and reduced elastic modulus (EOP, ECC) calculated by using Oliver–Pharr (OP) Cheng–Cheng (CC) methods. experimental results revealed that the exhibit peak-load dependence, i.e. size effect. Both obtained considering indenter tip roundness machine compliance. These OP method are higher than CC...
The results on the effect of nanostructured β-sialon precursor sintering and properties resultant ceramics are presented. standard mixture with 0.4z substitution degree was activated for 30 min in a planetary mill an acceleration 28g. Activation resulted diminution crystallite size significant imperfection crystal lattice powder particles. experiments were performed at 1450-1600 °C bed. relative density sintered bodies achieved value 97 %. material produced after pressureless 1500 °C. It is...
The phosphor powders of Ca(m/2)−xEuxSi12−(m+n)Alm+nOnN16−n (m = 1.6, n 0.8, x in the range 0–0.08) were synthesized by means a solid state reaction flowing nitrogen carbon resistant furnace and influence Eu concentration on crystal structure photoluminescent properties was thoroughly studied. optical selected α-sialon:Eu2+ samples at temperatures 10 to 500 K pressures up 240 kbar are presented. lattice parameters affected doping with europium some increase unit cell volume observed 6 mol %...
Ca-α-sialon doped by Eu2+ is a promising material for white LED phosphors due to the strong UV absorption and yellow broad band emission of activator. The general formula α sialon enables changing matrix composition altering m (Al-N) n (Al-O) parameters cross-substitution. Changes neighboring Eu ligands in host crystal lattice would trigger important modification photoluminescence properties because different field splitting energy d orbital. aim this study was correlate solid solution with...
Abstract Manufacturing high purity polycrystalline YAlO 3 (YAP) ceramics could replace monocrystalline YAP thus recently it is an interesting task for low cost producers of scintillators. The paper presents influence different source initial oxide powders (micro/nano Y 2 O and Al ) the method their homogenization on formation a phase. solid state reaction was used to prepare powder or ceramic pellets. After preheating, all samples in form pellets were heat-treated temperature range 1050-1650...
Nanostructured silicon nitride and aluminium powder mixtures have been successfully produced by high-energy mechanical activation in the planetary mill.The effect of milling parameters (time, ball-to-powder ratio, surfactants addition) means deagglomeration ultrasound disintegration (type dispersant, ultrasonic action) were studied.The resultant powders examined XRD, SEM TEM as well specific surface area (BET) was measured grain size distribution analyzed.It has found that significant...