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RIETVELD REFINEMENT

Cation Distribution of Zn0.5Me0.5Fe2O4 (Me = Co, Ni And Cu) on the Basis of Rietveld Refinement and Magnetization Measurement

Cation Distribution of Zn0.5Me0.5Fe2O4 (Me = Co, Ni And Cu) on the Basis of Rietveld Refinement and Magnetization Measurement

... the present work is undertaken. The main aim of this research work is to investigate the structure using Rietveld refinement, cation distribution and magnetic properties of Zn 0.5 Me 0.5 Fe 2 O 4 (Me = Co, ...

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Rietveld Refinement of Cobalt Doped Magnesium Aluminate Spinel Nanoparticles

Rietveld Refinement of Cobalt Doped Magnesium Aluminate Spinel Nanoparticles

... mechanical resistance, high chemical and thermal stability, and low temperature sinterability of spinel type oxide materials. The physical properties like chemical strength, catalytic ability, and high temperature ...

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Rietveld refinement of a natural cobaltian mansfieldite from synchrotron data

Rietveld refinement of a natural cobaltian mansfieldite from synchrotron data

... investigations. Rietveld refinement of a natural sample of a Co-bearing mansfieldite has now been carried out using synchrotron powder diffraction data ...

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Rietveld refinement of the langbeinite type mixed metal phosphate K2Ni0 5Zr1 5(PO4)3

Rietveld refinement of the langbeinite type mixed metal phosphate K2Ni0 5Zr1 5(PO4)3

... during Rietveld refinement as a starting model. For profile refinement a pseudo-Voigt function with axial divergence asymmetry (Thompson et ...

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Crystal structure of Na2HfSi2O7 by Rietveld refinement

Crystal structure of Na2HfSi2O7 by Rietveld refinement

... difference pattern. The reliability factors of the refinement were quite poor because of an amorphous bump attributed to the second minor phase. Hence the reliability factors were negatively impacted. The ...

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Rietveld refinement of the Tutton salt K2[Fe(H2O)6](SO4)2

Rietveld refinement of the Tutton salt K2[Fe(H2O)6](SO4)2

... refinement. Structural parameters for mereiterite were used from single-crystal data (Giester & Rieck, 1995), but only cell parameters were refined for this phase, leading to a = 11.849 (3) A ˚ , b = 9.550 (3) ...

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Rietveld refinement of AgCa10(PO4)7 from X ray powder data

Rietveld refinement of AgCa10(PO4)7 from X ray powder data

... For the structure of the mineral whitlockite, see: Calvo & Gopal (1975); Yashima et al. (2003). For powder diffraction studies and Rietveld refinements of phosphate-based whitlockite-related compounds, see: ...

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A Rietveld refinement using neutron powder diffraction data of a fully deuterated topaz, Al2SiO4(OD)2

A Rietveld refinement using neutron powder diffraction data of a fully deuterated topaz, Al2SiO4(OD)2

... Constant wavelength (CW) neutron diffraction data were collected for about 2 h on the D20 powder diffractometer at Institut Laue—Langevin, Grenoble, France. The 25 mg sample was contained in a vanadium can. Data were ...

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Rietveld refinement of Ba5(AsO4)3Cl from high resolution synchrotron data

Rietveld refinement of Ba5(AsO4)3Cl from high resolution synchrotron data

... cell refinement: CELREF (Laugier & Bochu, 2003); data reduction: local software; method used to solve structure: coordinates taken from a related compound; program(s) used to refine structure: TOPAS (Coelho, ...

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Synthesis, Rietveld Refinement and DFT Studies of Bis(4,5 dihydro 1H benzo[g]indazole)silver(I) Hexafluorophosphate Complex Salt

Synthesis, Rietveld Refinement and DFT Studies of Bis(4,5 dihydro 1H benzo[g]indazole)silver(I) Hexafluorophosphate Complex Salt

... How to cite this paper: Fomuta, T.R., Ngoune, J., Djimassingar, G., Djampouo, T.A., Matemb, J.M.N.T., Anguile, J.J. and Nenwa, J. (2017) Synthesis, Rietveld Re- finement and DFT Studies of Bis(4,5-di- hydro-1 H ...

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Rietveld refinement of the crystal structures of Rb2X Si5O12 (X = Ni, Mn)

Rietveld refinement of the crystal structures of Rb2X Si5O12 (X = Ni, Mn)

... of Rietveld refinements, using X-ray powder diffraction data collected using Cu K X-rays, show that the title compounds crystallize in the space group Pbca and adopt the cation-ordered structure of Cs 2 CdSi 5 O 12 ...

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Rietveld refinement of Ba5(AsO4)3Cl from high resolution synchrotron data

Rietveld refinement of Ba5(AsO4)3Cl from high resolution synchrotron data

... For crystal chemistry of apatites, see: Mercier et al. (2005); White & ZhiLi (2003); Wu et al. (2003). For powder diffraction data on Ba-containing As-apatites, see: Kreidler & Hummel (1970); Dunn & Rouse ...

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Rietveld refinement of Sr5(AsO4)3Cl from high resolution synchrotron data

Rietveld refinement of Sr5(AsO4)3Cl from high resolution synchrotron data

... cell refinement: CELREF (Laugier & Bochu, 2003) and GSAS (Larson & Von Dreele (2004); data reduction: local software; method used to solve structure: coordinates taken from a related compound; program(s) ...

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Eu1 8La0 2BaZnO5: a Rietveld refinement using X ray powder diffraction

Eu1 8La0 2BaZnO5: a Rietveld refinement using X ray powder diffraction

... was re®ned against the powder diffraction data by the Rietveld method, using a pseudo-Voigt function modi®ed by Thompson et al. (1987)to generate the line shape of the diffraction peaks. The background was ...

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Reinvestigation of the crystal structure of Ca2Ce8(SiO4)6O2 apatite by Rietveld refinement

Reinvestigation of the crystal structure of Ca2Ce8(SiO4)6O2 apatite by Rietveld refinement

... Data collection: Data Collector (Panalytical, 2011); cell refinement: JANA2006 (Petříček et al. , 2014); data reduction: JANA2006 (Petříček et al. , 2014); program(s) used to solve structure: JANA2006 (Petříček et ...

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Rietveld refinement of the crystal structures of Rb2XSi5O12 (X = Ni, Mn)

Rietveld refinement of the crystal structures of Rb2XSi5O12 (X = Ni, Mn)

... Crystal data, data collection and structure refinement details are summarized in Table 2. For each sample, a small amount of powder was ground and mounted on a low-background silicon wafer with a drop of acetone. ...

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Sr–fresnoite determined from synchrotron X ray powder diffraction data

Sr–fresnoite determined from synchrotron X ray powder diffraction data

... a Rietveld refinement study, based on high-resolution synchrotron X-ray powder diffraction data, show that the title compound crystallizes in the space group P4bm and adopts the structure of other ...

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Analysis of oxygen vacancy in Co doped ZnO using the electron density distribution obtained using MEM

Analysis of oxygen vacancy in Co doped ZnO using the electron density distribution obtained using MEM

... JHP designed and planned the experiment. JHP and YJL carried out Rietveld refinement and MEM analysis. JSB contributed to experiments and analysis for XPS. BSK performed powder sample fabrication. YCC ...

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The structure of divalent and trivalent cation substituted β tricalcium phosphate

The structure of divalent and trivalent cation substituted β tricalcium phosphate

... Rietveld refinement is based on postulating a hypothesized crystal structure, in terms of a space group, unit cell dimensions, and the crystallographic parameters (position, site occupancy, thermal ...

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The β form of di tert butyl 1,4 dioxo 3,6 di­phenyl 1,2,4,5 tetra­hydro­pyrrolo­[3,4 c]­pyrrole 2,5 di­carboxyl­ate

The β form of di tert butyl 1,4 dioxo 3,6 di­phenyl 1,2,4,5 tetra­hydro­pyrrolo­[3,4 c]­pyrrole 2,5 di­carboxyl­ate

... by Rietveld refinement from powder X-ray diffraction data, as well as the β form solved directly from powder X-ray diffraction data using their Monte Carlo technique and Rietveld ...

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