Technical concept of the materials science beamline at ALBA

Knapp, Michael; Peral, Inma; Nikitina, L.; Quispe, Marcos; Ferrer, S.

doi:10.1524/9783486991321-025

Cited by 13 publications

(14 citation statements)

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“…SXRPD patterns were collected in Debye-Scherrer (transmission) mode using the X-ray powder diffraction station of ALBA, the Spanish Synchrotron Radiation Facility (Barcelona, Spain) [35]. The wavelength, 0.61984(3) Å, was selected with a double-crystal Si (111) monochromator and determined from a Si640d NIST standard (a = 5.43123 Å) measurement.…”

Section: Sxrpd Data Acquisition and Analysismentioning

confidence: 99%

In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction

Álvarez-Pinazo

Cuesta

García-Maté

et al. 2014

Cement and Concrete Research

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Eco-friendly belite calcium sulfoaluminate (BCSA) cement hydration behavior is not yet well understood. Here, we report an in-situ synchrotron X-ray powder diffraction study for the first hours of hydration of BCSA cements. Rietveld quantitative phase analysis has been used to establish the degree of reaction (α). The hydration of a mixture of ye'elimite and gypsum revealed that ettringite formation (α~70% at 50 h) is limited by ye'elimite dissolution. Two laboratory-prepared BCSA cements were also studied: non-active-BCSA and active-BCSA cements, with β-and α′ H -belite as main phases, respectively. Ye'elimite, in the non-active-BCSA system, dissolves at higher pace (α~25% at 1 h) than in the active-BCSA one (α~10% at 1 h), with differences in the crystallization of ettringite (α~30% and α~5%, respectively). This behavior has strongly affected subsequent belite and ferrite reactivities, yielding stratlingite and other layered phases in non-active-BCSA. The dissolution and crystallization processes are reported and discussed in detail.

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Section: Sxrpd Data Acquisition and Analysismentioning

confidence: 99%

In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction

Álvarez-Pinazo

Cuesta

García-Maté

et al. 2014

Cement and Concrete Research

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“…HP experimental details.-HP angle-dispersive powder X-ray diffraction experiments were conducted at room temperature in Diamond (I15 beamline) and ALBA (MSPD beamline [21]) synchrotron light sources. Experiments on AlBO 3 , ScBO 3 , FeBO 3 and InBO 3 were carried out up to 31, 18, 31, and 32 GPa, respectively, with a monochromatic wavelength of 0.4246 Å.…”

Section: -Experimental and Theoretical Detailsmentioning

confidence: 99%

Compressibility Systematics of Calcite-Type Borates: An Experimental and Theoretical Structural Study on ABO₃ (A = Al, Sc, Fe, and In)

et al. 2014

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The structural properties of calcite-type orthoborates ABO 3 (A = Al, Fe, Sc, and In) have been investigated at high pressures up to 32 GPa. They were studied experimentally using synchrotron powder X-ray diffraction and theoretically by means of ab initio total-energy calculations. We found that the calcite-type structure remains stable up to the highest pressure explored in the four studied compounds. Experimental and calculated static geometries (unit-cell parameters and internal coordinates), bulk moduli, and their pressure derivatives are in good agreement. The compressibility along the c axis is roughly three times that along the a axis. Our data clearly indicate that the compressibility of borates is dominated by that of the [AO 6 ] octahedral group and depends on the size of the trivalent A cations. An analysis of the relationship between isomorphic borates and carbonates is also presented, which points to the potentiality of considering borates as chemical analogues of the carbonate mineral family.

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“…Angle-dispersive powder XRD measurements at different pressures were performed in the MSPD beamline 64 at ALBA synchrotron facility. This beamline is equipped with Kirkpatrick-Baez mirrors to focus the monochromatic beam and a SX165 CCD detector with a diameter of 165 mm.…”

Section: Methodsmentioning

confidence: 99%

Structural and vibrational properties of corundum-type In₂O₃nanocrystals under compression

et al. 2017

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This work reports the structural and vibrational properties of nanocrystals of corundum-type InO (rh-InO) at high pressures by using angle-dispersive x-ray diffraction and Raman scattering measurements up to 30 GPa. The equation of state and the pressure dependence of the Raman-active modes of the corundum phase in nanocrystals are in good agreement with previous studies on bulk material and theoretical simulations on bulk rh-InO. Nanocrystalline rh-InO showed stability under compression at least up to 20 GPa, unlike bulk rh-InO which gradually transforms to the orthorhombic Pbca (RhO-III-type) structure above 12-14 GPa. The different stability range found in nanocrystalline and bulk corundum-type InO is discussed.

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Technical concept of the materials science beamline at ALBA

Cited by 13 publications

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In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction

In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction

Compressibility Systematics of Calcite-Type Borates: An Experimental and Theoretical Structural Study on ABO₃ (A = Al, Sc, Fe, and In)

Structural and vibrational properties of corundum-type In₂O₃nanocrystals under compression

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Technical concept of the materials science beamline at ALBA

Cited by 13 publications

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In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction

In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction

Compressibility Systematics of Calcite-Type Borates: An Experimental and Theoretical Structural Study on ABO3 (A = Al, Sc, Fe, and In)

Structural and vibrational properties of corundum-type In2O3nanocrystals under compression

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Compressibility Systematics of Calcite-Type Borates: An Experimental and Theoretical Structural Study on ABO₃ (A = Al, Sc, Fe, and In)

Structural and vibrational properties of corundum-type In₂O₃nanocrystals under compression