Comparison of Flowability and Sinterability Among Different Binder Jetting Feedstock Powders: Nanopowder, Micropowder, and Granulated PowderSource: Journal of Micro and Nano-Manufacturing:;2021:;volume( 009 ):;issue: 002::page 021008-1DOI: 10.1115/1.4052253Publisher: 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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contributor author | Du, Wenchao | |
contributor author | Miao, Guanxiong | |
contributor author | Pei, Zhijian | |
contributor author | Ma, Chao | |
date accessioned | 2022-02-06T05:41:23Z | |
date available | 2022-02-06T05:41:23Z | |
date copyright | 9/20/2021 12:00:00 AM | |
date issued | 2021 | |
identifier issn | 2166-0468 | |
identifier other | jmnm_009_02_021008.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4278550 | |
description 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. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Comparison of Flowability and Sinterability Among Different Binder Jetting Feedstock Powders: Nanopowder, Micropowder, and Granulated Powder | |
type | Journal Paper | |
journal volume | 9 | |
journal issue | 2 | |
journal title | Journal of Micro and Nano-Manufacturing | |
identifier doi | 10.1115/1.4052253 | |
journal fristpage | 021008-1 | |
journal lastpage | 021008-8 | |
page | 8 | |
tree | Journal of Micro and Nano-Manufacturing:;2021:;volume( 009 ):;issue: 002 | |
contenttype | Fulltext |