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    Comparison of Flowability and Sinterability Among Different Binder Jetting Feedstock Powders: Nanopowder, Micropowder, and Granulated Powder

    Source: Journal of Micro and Nano-Manufacturing:;2021:;volume( 009 ):;issue: 002::page 021008-1
    Author:
    Du, Wenchao
    ,
    Miao, Guanxiong
    ,
    Pei, Zhijian
    ,
    Ma, Chao
    DOI: 10.1115/1.4052253
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Feedstock powders used in binder jetting additive manufacturing include nanopowder, micropowder, and granulated powder. Two important characteristics of the feedstock powders are flowability and sinterability. This paper aims to compare the flowability and sinterability of different feedstock powders. Three powders were compared: nanopowder (with a particle size of ∼100 nm), micropowder (with a particle size of 70 μm), and granulated powder (with a granule size of ∼70 μm) made from the nanopowder by spray freeze drying. Flowability metrics employed included apparent density (AD), tap density (TD), volumetric flow rate (VFR), mass flow rate (MFR), Hausner ratio (HR), Carr index (CI), and repose angle (RA). Sinterability metrics employed included sintered bulk density (SBD), volumetric shrinkage (VS), and densification ratio (DR). Results show that the granulated powder has a higher flowability than the nanopowder and a higher sinterability than the micropowder. Moreover, different flowability metric values of the granulated powder are close to those of the micropowder, indicating that these two powers have a comparably high flowability. Similarly, different sinterability metric values of the granulated powder are close to those of the nanopowder, indicating that these two powders have a comparably high sinterability.
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      Comparison of Flowability and Sinterability Among Different Binder Jetting Feedstock Powders: Nanopowder, Micropowder, and Granulated Powder

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    contributor authorDu, Wenchao
    contributor authorMiao, Guanxiong
    contributor authorPei, Zhijian
    contributor authorMa, Chao
    date accessioned2022-02-06T05:41:23Z
    date available2022-02-06T05:41:23Z
    date copyright9/20/2021 12:00:00 AM
    date issued2021
    identifier issn2166-0468
    identifier otherjmnm_009_02_021008.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4278550
    description abstractFeedstock powders used in binder jetting additive manufacturing include nanopowder, micropowder, and granulated powder. Two important characteristics of the feedstock powders are flowability and sinterability. This paper aims to compare the flowability and sinterability of different feedstock powders. Three powders were compared: nanopowder (with a particle size of ∼100 nm), micropowder (with a particle size of 70 μm), and granulated powder (with a granule size of ∼70 μm) made from the nanopowder by spray freeze drying. Flowability metrics employed included apparent density (AD), tap density (TD), volumetric flow rate (VFR), mass flow rate (MFR), Hausner ratio (HR), Carr index (CI), and repose angle (RA). Sinterability metrics employed included sintered bulk density (SBD), volumetric shrinkage (VS), and densification ratio (DR). Results show that the granulated powder has a higher flowability than the nanopowder and a higher sinterability than the micropowder. Moreover, different flowability metric values of the granulated powder are close to those of the micropowder, indicating that these two powers have a comparably high flowability. Similarly, different sinterability metric values of the granulated powder are close to those of the nanopowder, indicating that these two powders have a comparably high sinterability.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleComparison of Flowability and Sinterability Among Different Binder Jetting Feedstock Powders: Nanopowder, Micropowder, and Granulated Powder
    typeJournal Paper
    journal volume9
    journal issue2
    journal titleJournal of Micro and Nano-Manufacturing
    identifier doi10.1115/1.4052253
    journal fristpage021008-1
    journal lastpage021008-8
    page8
    treeJournal of Micro and Nano-Manufacturing:;2021:;volume( 009 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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