Investigations of zeolitic materials at the NIST Center for Neutron
            Research

Toby, Brian H.

doi:10.6028/jres.106.048

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2013

2022

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

(1 citation statement)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Site inversion is difficult to detect using X-ray diffraction (XRD) due to the similar X-ray scattering crosssections for Mg [12] and Al [13]. In contrast, the neutron scattering cross-sections for Mg (0.06 barn) and Al (0.23 barn) are significantly different, which enables the use of neutron powder diffraction (NPD) to determine site occupancy [14].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Activation and Cation Site Disorder in MgAl2O4

et al. 2022

View full text Add to dashboard Cite

The synthesis and crystallographic site occupancy were investigated for MgAl2O4 with and without mechanical activation of the precursor powders. Heating to 1200 °C or higher resulted in the formation of a single spinel phase regardless of whether the powders were mechanically activated or not. Neutron diffraction analysis was used to determine cation site occupancy and revealed that mechanical activation resulted in a lower degree of cation site inversion compared to the nonactivated materials, which indicated that the powders were closer to thermodynamic equilibrium. This is the first study to characterize the effects of mechanical activation on crystallographic site occupancy in magnesium aluminate spinel using neutron diffraction.

show abstract

Section: Introductionmentioning

confidence: 99%