nanopowders – TechConnect Briefs

Gas phase sodium flame synthesis of non-oxide metallic powders

Abid A., Krause M., Smith G., Sungail C., Yin A., GAM, US

Demand for new high surface area non-oxide materials is growing to support the diverse market such as energy storage, catalysts, electronic materials etc. Tight control of powder purity and flow properties are important parameters for [...]

Upconversion and White Light Generation Properties of Undoped and Yb3+ doped Yttrium Silicate Nano-Phosphors

Bartolo B.D., Cinkaya H., Eryurek G., Boston College, US

The optical systems that consist of rare earth ions embedded in a host lattice are very interesting materials for many applications such as optical sensing, data storage, nonlinear imaging and biomedical applications [1, 2, 3]. [...]

Immobilization of TiO2 nanopowders in multilayer fluorinated coatings for highly efficient clear and turbid wastewater remediation

Bettini L.G., Diamanti M.V., Milani P., Navarrini W., Pedeferri M.P., Persico F., Sansotera M., Politecnico di Milano, IT

The use of nanosized photocatalytic TiO2 in suspension or slurry type reactors is well reported. However, the industrial feasibility of such systems is limited, on account of the low quantum efficiency reported for slurry processes [...]

In-situ Characterization of Nanopowders during compaction using SANS and AC impedance spectroscopy

Gerhardt R.A., Rudzik T.J., Georgia Institute of Technology, US

Sintering is one of the primary methods of fabrication of ceramic materials. Therefore, a detailed understanding of the processing-property relationships for materials undergoing sintering is of great potential value. A new testing method combining small [...]

Nanopowders of TiO2 obtained by combustion reaction: effect of fuels

Almeida E.P., Costa A.C.F.M., Coutinho J.P., Freitas N.L., Kiminami R.H.G.A., Lira H.L., Universidade Federal de Campina Grande, BR

The synthesis by combustion reaction to obtain TiO2 has been studied by several researchers and using different fuels. Thus, this study aimed to evaluate the effect of fuel (citric acid monohydrate, aniline, oxalic dihidrazida and [...]

Spark Plasma Synthesis (SPS) Device for Sintering of Nanomaterials

Chedia R., Jalabadze N., Khundadze L., Kukava T., Mikeladze A., Nadaraia L., Technical University of Georgia, GE

It is known that pieces with nanocrystalline structure condition have much higher performance than those with an ordinary structure. There are number of techniques for manufacturing nanocrystalline materials in powder condition however a question of [...]

Synthesis of Nanopowders and Their Production at the Industrial Scale Using the Inductively-Coupled Plasma Technology

Bolduc M., Boulos M., Dolbec R., Fan X., Guo J., Jurewicz J., Xue S., Tekna Plasma Systems Inc., CA

The increasing demand for nanopowders (particles size

Formation of Ceramic Nanopowders and Composites in a Self-Sustaining Reaction Regime

Khachatryan H.L., Kharatyan S.L., Maukyan K.V., Puszynski J.A., South Dakota School of Mines and Technology, US

A combustion synthesis, also called self-propagating high-temperature synthesis, has been found to be an effective and economical production method of advanced ceramic and intermetallic compounds. This method is very suitable for the formation of nonstoichiometric [...]