PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES

Pulverization of two different sized micro-B4C particles (∼10 μm and ∼150 μm) was investigated using a STS based high energy ball milling system. Shapes, generation of the impurities, and reduction of the particle size dependent on milling time and initial particle size were investigated using vario...

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Main Authors: JAEWOO KIM, JIHEON JUN, MIN-KU LEE
Format: Article
Language:English
Published: Elsevier 2014-10-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573315301078
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author JAEWOO KIM
JIHEON JUN
MIN-KU LEE
author_facet JAEWOO KIM
JIHEON JUN
MIN-KU LEE
author_sort JAEWOO KIM
collection DOAJ
description Pulverization of two different sized micro-B4C particles (∼10 μm and ∼150 μm) was investigated using a STS based high energy ball milling system. Shapes, generation of the impurities, and reduction of the particle size dependent on milling time and initial particle size were investigated using various analytic tools including SEM-EDX, XRD, and ICP-MS. Most of impurity was produced during the early stage of milling, and impurity content became independent on the milling time after the saturation. The degree of particle size reduction was also dependent on the initial B4C size. It was found that the STS nanoparticles produced from milling is strongly bounded with the B4C particles forming the B4C/STS composite particles that can be used as a neutron absorbing nanocomposite. Based on the morphological evolution of the milled particles, a schematic pulverization model for the B4C particles was constructed.
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spelling doaj.art-78ff03dd27144579be7a2417dfd4d5842022-12-22T02:47:47ZengElsevierNuclear Engineering and Technology1738-57332014-10-0146567568010.5516/NET.06.2014.015PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITESJAEWOO KIM0JIHEON JUN1MIN-KU LEE2Nuclear Materials Research DivisionDepartment of Materials Science and Engineering, The Ohio State University, Columbus OH 43210, USANuclear Materials Research DivisionPulverization of two different sized micro-B4C particles (∼10 μm and ∼150 μm) was investigated using a STS based high energy ball milling system. Shapes, generation of the impurities, and reduction of the particle size dependent on milling time and initial particle size were investigated using various analytic tools including SEM-EDX, XRD, and ICP-MS. Most of impurity was produced during the early stage of milling, and impurity content became independent on the milling time after the saturation. The degree of particle size reduction was also dependent on the initial B4C size. It was found that the STS nanoparticles produced from milling is strongly bounded with the B4C particles forming the B4C/STS composite particles that can be used as a neutron absorbing nanocomposite. Based on the morphological evolution of the milled particles, a schematic pulverization model for the B4C particles was constructed.http://www.sciencedirect.com/science/article/pii/S1738573315301078Boron CarbideNeutron AbsorberPulverizationNanoparticlesCeramic-metal Composite
spellingShingle JAEWOO KIM
JIHEON JUN
MIN-KU LEE
PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES
Nuclear Engineering and Technology
Boron Carbide
Neutron Absorber
Pulverization
Nanoparticles
Ceramic-metal Composite
title PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES
title_full PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES
title_fullStr PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES
title_full_unstemmed PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES
title_short PARTICLE SIZE-DEPENDENT PULVERIZATION OF B4C AND GENERATION OF B4C/STS NANOPARTICLES USED FOR NEUTRON ABSORBING COMPOSITES
title_sort particle size dependent pulverization of b4c and generation of b4c sts nanoparticles used for neutron absorbing composites
topic Boron Carbide
Neutron Absorber
Pulverization
Nanoparticles
Ceramic-metal Composite
url http://www.sciencedirect.com/science/article/pii/S1738573315301078
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