Zobrazeno 1 - 10
of 312
pro vyhledávání: '"Machado, K."'
An amorphous Se$_{0.80}$S$_{0.20}$ alloy produced by Mechanical Alloying was studied by Raman spectroscopy, x-ray diffraction, extended x-ray absorption fine structure (EXAFS) and optical absorption spectroscopy, and also through reverse Monte Carlo
Externí odkaz:
http://arxiv.org/abs/1002.5006
Autor:
Donadel, K., Laranjeira, M. C. M., Gonçalves, V. L., Fávere, V. T., Machado, K. D., de Lima, J. C., Prates, L. H. M.
Hydroxyapatite samples were produced by two different wet-chemical methods, and characterized by x-ray diffraction, infrared and compression strength measurements. The x-ray diffraction measurements were simulated using the Rietveld method, and struc
Externí odkaz:
http://arxiv.org/abs/physics/0402002
Autor:
Machado, K. D., da Silva, R. C., de Lima, J. C., Grandi, T. A., Gasperini, A. A. M., Campos, C. E. M.
Three amorphous Co$_x$Nb$_{100-x}$ alloys, Co$_{25}$Nb$_{75}$, Co$_{57}$Nb$_{43}$ and Co$_{80}$Nb$_{20}$, were produced by Mechanical Alloying starting from the elemental powders. Their magnetic properties were determined using an alternating gradien
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402014
The short and intermediate range order of an amorphous GeSe$_4$ alloy produced by Mechanical Alloying were studied by Reverse Monte Carlo simulations of its x-ray total structure factor and Raman scattering. The simulations were used to compute the $
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402015
We have investigated the local atomic structure of amorphous TM-Ti alloys (TM = Co, Ni, Cu) produced by Mechanical Alloying by means of EXAFS analyses on TM and Ti K-edges. Coordination numbers and interatomic distances for the four alloys where foun
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402013
Autor:
Machado, K. D., de Lima, J. C., Grandi, T. A., Gasperini, A. A. M., Maurmann, C. E., Souza, S. M., Campos, C. E. M., Pimenta, A. F.
The crystalline structures of superionic high temperature copper selenides Cu$_{2-x}$Se ($0 \le x \le 0.25$) produced by Mechanical Alloying were investigated using X-ray diffraction (XRD) technique. The measured XRD patterns showed the presence of t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402012
We have investigated the local atomic structure of an amorphous Co$_{57}$Ti$_{43}$ alloy produced by Mechanical Alloying by means of x-ray diffraction and EXAFS analyses on Co and Ti K-edges. Coordination numbers and interatomic distances where found
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307375
The local atomic order of an amorphous Ga$_{50}$Se$_{50}$ alloy produced by Mechanical Alloying (MA) was studied by the Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Diffraction (XRD) techniques and by Reverse Monte Carlo (RMC) simulatio
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304666
The short and intermediate range order of an amorphous Ge$_{30}$Se$_{70}$ alloy produced by Mechanical Alloying were studied by Reverse Monte Carlo simulations of its x-ray total structure factor, Raman scattering and differential scanning calorimetr
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304665
The aging of a nanocrystalline equiatomic ZnSe alloy produced by mechanical alloying was investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC) techniques. The measured XRD patterns showed that Se atoms located at inte
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212322