Sector: Advanced Materials & Manufacturing
Morphology effect dependent on the synthesis method of KxIr1-xO2 system
Ramírez E., Chavira E., Baños L., Soto Guzmán A.B., Guzmán J., Flores C., Universidad Nacional Autonoma de Mexico, MX
We focus our attention on the synthesis of the solid solution of KxIr1-xO2 with x = 0.25. This solid solution was obtained by the solid-state reaction and sol-gel method using IrO2 and K2CO3 as starting [...]
A Novel Ultrasonic Method for Characterizing Suspensions of Nanoparticles
Originally developed to measure concentration of human Islets of Langerhans in transplant preparations, the Ultrasonic Pulsed Doppler (USPD) method uses a single transducer as both source and receiver of pulsed ultrasound to measure backscattered energy [...]
Nano-Diamond compressibility at pressures up to 85 GPa
Pantea C., Zhang J., Qian J., Zhao Y., Migliori A., Grzanka E., Palosz B., Wang Y., Zerda T.W., Liu H., Ding Y., Stephens P.W., Botez C.E., Los Alamos National Laboratory, US
According to the core-shell model nanocrystals consist of a uniform core surrounded by a surface shell. Crystallographic structure of the surface shell is the same as that of the core but interatomic distances in the [...]
Testing the validity of small angle and adsorption-based characterization techniques by atomic-scale simulation
This work aims at testing small angle scattering and adsorption/desorption-based characterization techniques routinely used for nanoporous material characterization (specific surface and pore size distribution measurements). For that purpose, we report Grand Canonical Monte Carlo results [...]
The use of PDF analysis to investigate local structure and domains
Knowledge of the atomic-scale structure is an important prerequisite to understand and control the properties of materials. The main techniques used to determine atomic structure are x-ray, neutron and electron diffraction from which the Bragg [...]
Sol-gel synthesis and photoluminescent characteristics of Eu doped Gd2O3 nanophosphors
Lin C.C., Lin K.M., Lin C.C., Lin K.M., Li Y.Y., Lin C.C., Lin K.M., National Chung Cheng University, TW
Eu-ion doped Gd2O3 nanophosphor powders were prepared by sol-gel method using GdCl3 and EuCl3 at 800-1100 oC. The size of phosphors was about 50-200nm depending on the synthesis temperature for 2hr. Nanophosphors was examined by [...]
Experimental mechanical stress characterization of MEMS by using of confocal laser scanning microscope with a Raman spectroscopy interface
Yamaguchi M., Ueno S., Miura I., Erikawa W., Technical Research Institute Japan Society for the promotion of machine industry, JP
In this study, we demonstrate mechanical stress and shape profile measurements using confocal laser scanning microscopy (CLM) interface for Raman spectroscopy and that this system is reasonable and helpful to the MEMS designer. By combining [...]
Investigation of the Piezoresistive Properties of Nano Structured Amorphous Carbon for Force Sensor Applications
In this contribution we report on investigations of the nano structure, morphology and nano topography of amorphous carbon films with respect to the piezo resistive, electrical and mechanical properties. Therefore a-C, a-C:H and doped a-C:H:X [...]