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Design and Characterisation of Metallic Glassy Alloys of High Neutron Shielding Capability

DOI: 10.1038/srep36998 DOI Help

Authors: J. C. Khong (University of Hull) , D. Daisenberger (Diamond Light Source) , G. Burca (ISIS Neutron and Muon Source, Rutherford Appleton Laboratory) , W. Kockelmann (ISIS Neutron and Muon Source, Rutherford Appleton Laboratory) , A. S. Tremsin (Space Sciences Laboratory, University of California at Berkeley) , J. Mi (School of Engineering & Computer Science, University of Hull)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Scientific Reports , VOL 6

State: Published (Approved)
Published: November 2016
Diamond Proposal Number(s): 8858 , 9902

Open Access Open Access

Abstract: This paper reports the design, making and characterisation of a series of Fe-based bulk metallic glass alloys with the aim of achieving the combined properties of high neutron absorption capability and sufficient glass forming ability. Synchrotron X-ray diffraction and pair distribution function methods were used to characterise the crystalline or amorphous states of the samples. Neutron transmission and macroscopic attenuation coefficients of the designed alloys were measured using energy resolved neutron imaging method and the very recently developed microchannel plate detector. The study found that the newly designed alloy (Fe48Cr15Mo14C15B6Gd2 with a glass forming ability of Ø5.8 mm) has the highest neutron absorption capability among all Fe-based bulk metallic glasses so far reported. It is a promising material for neutron shielding applications.

Journal Keywords: Metallic Glasses, Synchrotron X-ray Diffraction, Pair Distribution Function, Energy Resolved Neutron Imaging

Subject Areas: Materials, Engineering, Energy

Instruments: I15-Extreme Conditions