The crystal structure of γ-dicalcium silicate

Smith, D. K.; Majumdar, Ashabari; Ordway, Fred

doi:10.1107/s0365110x65001780

Cited by 94 publications

(41 citation statements)

References 7 publications

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“…The results confirm the structure found by Smith, Majumdar & Ordway (1963), but show that the distortion of the SiVa tetrahedron found by these workers is not real.…”

Section: (4) 1148 (3) 1044 (3) 1050 (3)supporting

confidence: 81%

“…CaCI2 (Czaya, 1970). The refined lattice constants (from 43 Guinier reflexions)are: a0 = 5.078 + 0.002/~ b0 = 11.225 + 0"003 co = 6-760 + 0.002 These values differ substamiaUy from those given by Smith et al (1963), but are in good agreement with the data given by Yannaquis (1955) and by Yamaguchi, Ono, Kawamura & Soda (1963). Of the possible space groups Pbnm and Pna21 the former, which is centrosymmetric, proved to be correct.…”

Section: (Received 26 May 1970)supporting

confidence: 77%

“…The structure determination of y-Ca2SiO4 by Smith, Majumdar & Ordway (1963) showed a surprisingly irregular SiO4 tetrahedron, which is unusual for orthositicates. Si-O bond lengths range from 1.589 to 1.725 A.…”

Section: (Received 26 May 1970)mentioning

confidence: 99%

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Refinement of the structure of γ-Ca₂SiO₄

Czaya¹

1971

Acta Crystallogr Sect B

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848SHORT COMMUNICATIONS The e.s.d, of position calculated from full-matrix least squares with space group Cc show that some of the atoms have highly significant deviations from the higher symmetry, indicating that Cc is correct.In cases where the space group is not absolutely certain, from a structural point of view it is safest (and cannot be wrong) to assume the lower symmetry. It is my view that the structure of dibenzyl disulphide is adequately described by Cc.

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“…The results confirm the structure found by Smith, Majumdar & Ordway (1963), but show that the distortion of the SiVa tetrahedron found by these workers is not real.…”

Section: (4) 1148 (3) 1044 (3) 1050 (3)supporting

confidence: 81%

Section: (Received 26 May 1970)supporting

confidence: 77%

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Refinement of the structure of γ-Ca₂SiO₄

Czaya¹

1971

Acta Crystallogr Sect B

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“…The -form is a metastable monoclinic phase at room temperature. 18 The -phase, is stable at ambient temperature and it crystallizes in an orthorhombic olivine-type structure [19][20][21][22] , but is essentially nonreactive with water. ' L and ' H orthorhombic phases are stable at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of stabilization of dicalcium silicate solid solution with aluminium

et al. 2014

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KEYWORDS: PC-SOFC, Mixed oxide and proton conductor, aluminum doped dicalcium silicate ABSTRACT:Stoichiometric dicalcium silicate, Ca 2 SiO 4 , displays a well-known polymorphism with temperature.When this phase is doped by a range of elements generates belite, one of the main phases of cements. Here, we thoroughly study the aluminum doping of dicalcium silicate. This type of study is important for cement characterization and also from a basic point of view.

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“…It constitutes 15 to 30 wt. % of clinker and Exists in five forms: α, α' H , α' L , β and ɣ [14,15]. The β form is metastable under 500 °C but is hydraulically active.…”

Section: Introductionmentioning

confidence: 99%

Valorization of glass and shell powders in the synthesis of Belitic clinker

et al. 2018

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Abstract. In recent years, waste recycling has become a key issue in construction materials science for achieve the goal of sources of raw materials. The aim of this study is to use waste glass as source of SiO 2 oxide and mussel shells consisting essentially of calcium carbonate as starting materials to synthesize belite rich cement. The elaborated clinker is chemically and structurally related to β-Ca 2 SiO 4, by heat solid state activation. After grinding, the raw materials are mixed and heated up to 1050°C. The samples are characterized by X-ray diffraction (XRD) and Fourier Transformed Infrared spectroscopy (FT-IR). The mechanical strength of some sample was measured for 28 and 72 days. The results show the different mineralogical stapes of formation of clinker, the state reaction method allows the elaboration of a cementitious material by a simple heat treatment at relatively low temperature and low release of CO 2. The hydration products are also identified by XR diffraction at 2, 7, 28 and 72 days.

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The crystal structure of γ-dicalcium silicate

Cited by 94 publications

References 7 publications

Refinement of the structure of γ-Ca₂SiO₄

Refinement of the structure of γ-Ca₂SiO₄

Mechanism of stabilization of dicalcium silicate solid solution with aluminium

Valorization of glass and shell powders in the synthesis of Belitic clinker

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The crystal structure of γ-dicalcium silicate

Cited by 94 publications

References 7 publications

Refinement of the structure of γ-Ca2SiO4

Refinement of the structure of γ-Ca2SiO4

Mechanism of stabilization of dicalcium silicate solid solution with aluminium

Valorization of glass and shell powders in the synthesis of Belitic clinker

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Product

Resources

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Refinement of the structure of γ-Ca₂SiO₄

Refinement of the structure of γ-Ca₂SiO₄