A5103089431- Advanced ceramic materials synthesis
- Advanced materials and composites
- Microwave Dielectric Ceramics Synthesis
- Ferroelectric and Piezoelectric Materials
- Bone Tissue Engineering Materials
- Nuclear materials and radiation effects
- Electronic and Structural Properties of Oxides
- Advancements in Solid Oxide Fuel Cells
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloys Composites Properties
- Cellular and Composite Structures
- ZnO doping and properties
- Recycling and utilization of industrial and municipal waste in materials production
- Powder Metallurgy Techniques and Materials
- Orthopaedic implants and arthroplasty
- Advanced Battery Materials and Technologies
- Semiconductor materials and devices
- Magnetic and transport properties of perovskites and related materials
- Intermetallics and Advanced Alloy Properties
- Metallurgy and Material Forming
- Quantum Dots Synthesis And Properties
- Thermal and Kinetic Analysis
- MXene and MAX Phase Materials
- Electronic Packaging and Soldering Technologies
- Polymer Foaming and Composites
International Advanced Research Centre for Powder Metallurgy and New Materials
2014-2023
Sandia National Laboratories California
1976
Transparent ceramics, a new class of advanced functional materials, find diverse applications in strategic and civilian sectors owing to its unique combination mechanical transmission properties. Technological advancements ceramic powder synthesis, shaping sintering have made it possible tailor the microstructural, optical property relationships case transparent materials. materials are classified broadly as visible, mid wave long infrared regions. The systems, which explored currently,...
Different grades of stoichiometric and non‐stoichiometric dense magnesium aluminate spinel (MgAl 2 O 4 ) grains were prepared by a conventional double‐stage firing process using two types alumina four magnesia raw materials. The MgAl formation was found to be highly influenced CaO moisture present in the precursor oxides as confirmed thermogravimetry (TG), differential thermal analysis (DTA), X‐ray diffraction (XRD) techniques. Fourier transform‐infrared spectroscopy (FTIR) study revealed...
Yttria stabilized zirconia (8YSZ) powders were subjected to densification studies employing various sintering techniques like spark plasma (SPS), microwave (MWS) and two-stage (TSS). The microstructural evolution of the samples are studied compared with that conventionally sintered (ramp hold). Depending on technique employed at different temperatures arrive a minimum density 99%TD. Detailed evaluation indicated low temperature leading finer grain sizes (~1 ?m) could be achieved by followed...
AbstractAbstractTwo types of stoichiometric MgAl2O4 spinel powders were prepared by combustion synthesis routes, using sucrose (SCS) or urea (UCS) as fuel. For comparative purposes a powder was also solid state reaction (SS powder). Pressed compacts the three sintered at various temperatures ranging from 1575 to 1625°C for 2 h. After grinding, SCS and SS had very narrow particle size distributions, with average sizes 3·17 4·13 μm respectively, whereas UCS showed wide distribution an 37·76...
Highly transparent Aluminum oxynitride (Al ON ) body has been produced using aqueous slip casting technique. High‐purity alumina and AlN were used as raw materials for the synthesis of single‐phase Al powder. As‐synthesized powder was surface modified to enable powders resistant hydrolysis in water during casting. High solid loaded prepared followed by drying sintering produce . Phase formation stability characterized XRD , pH viscosity measurements. before after treatments characterized....
Aqueous colloidal forming techniques like slip/gel casting have been attempted to prepare monoliths of aluminum oxynitride (AlON) starting from the constituent raw materials high‐purity alumina and nitride. A surface treatment conducive prevent hydrolysis nitride in an aqueous medium was carried out before shaping technique. The slurry, leading AlON composition Al 23 O 27 N 5 , prepared with high solid loading (76–80 wt%) water casted into molds, dried, sintered temperature range...
Investigations were carried out, on the effect of addition kaolinite (2Al 2 O 3 ·3SiO ·2H O) and talc (Mg Si 4 10 (OH) ) in terms bulk density, XRD phases, microstructure, as well thermal mechanical properties aluminium titanate (AT) ceramics. AT ceramics with additives have shown enhanced sinterability at 1550°C, achieving close to 99% TD (theoretical density) comparison 87% TD, exhibited pure samples sintered 1600°C, found be agreement microstructural observations. phase analysis maximum...