Optimization of Powder Injection Molding of Feedstock Based on Aluminum Oxide and Multicomponent Water-Soluble Polymer Binder

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F11%3A43865314" target="_blank" >RIV/70883521:28110/11:43865314 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985874:_____/11:00360644 RIV/70883521:28610/11:43865314

Výsledek na webu

<a href="http://dx.doi.org/10.1002/pen.21928" target="_blank" >http://dx.doi.org/10.1002/pen.21928</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pen.21928" target="_blank" >10.1002/pen.21928</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of Powder Injection Molding of Feedstock Based on Aluminum Oxide and Multicomponent Water-Soluble Polymer Binder

Popis výsledku v původním jazyce

Analyses crucial to optimize powder injection molding of feedstock based on aluminum oxide powder and multicomponent polymeric binder are provided with the aim to obtain defect-free, high density parts. As the critical step of the process is the flow ofhighly filled (60 vol%) compound into a mold cavity, rheological properties supplemented by thermal and pressure-volume-temperature characteristics are measured and described. Upon shear deformation the feedstock undergoes structural changes, which are quantified in terms of yield stresses obtained using Herschel-Bulkley and Casson methods. Further, the rheological model is developed to describe the flow behavior of the feedstock in the whole shear rate range measured. Thermogravimetric analysis is performed to optimize debinding step of the process, and two possible ways of the binder removal are proposed: purely thermal andcombined solvent/thermal. The quality of the final sintered parts is demonstrated on scanning electron microscopi

Název v anglickém jazyce

Optimization of Powder Injection Molding of Feedstock Based on Aluminum Oxide and Multicomponent Water-Soluble Polymer Binder

Popis výsledku anglicky

Analyses crucial to optimize powder injection molding of feedstock based on aluminum oxide powder and multicomponent polymeric binder are provided with the aim to obtain defect-free, high density parts. As the critical step of the process is the flow ofhighly filled (60 vol%) compound into a mold cavity, rheological properties supplemented by thermal and pressure-volume-temperature characteristics are measured and described. Upon shear deformation the feedstock undergoes structural changes, which are quantified in terms of yield stresses obtained using Herschel-Bulkley and Casson methods. Further, the rheological model is developed to describe the flow behavior of the feedstock in the whole shear rate range measured. Thermogravimetric analysis is performed to optimize debinding step of the process, and two possible ways of the binder removal are proposed: purely thermal andcombined solvent/thermal. The quality of the final sintered parts is demonstrated on scanning electron microscopi

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F08%2F1307" target="_blank" >GA103/08/1307: Reologické modelování toků polymerních materiálů za vysokých tlaků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Engineering and Science

ISSN

0032-3888

e-ISSN

—

Svazek periodika

51

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1376-1382

Kód UT WoS článku

000292116900016

EID výsledku v databázi Scopus

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