Effects of solid lubricants on properties of Al-Si-SiC composite powder produced by gas atomization technique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU140293" target="_blank" >RIV/00216305:26210/20:PU140293 - isvavai.cz</a>

Výsledek na webu

<a href="https://ojs.materialsconnex.com/index.php/jmmm/article/view/710" target="_blank" >https://ojs.materialsconnex.com/index.php/jmmm/article/view/710</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14456/jmmm.2020.38" target="_blank" >10.14456/jmmm.2020.38</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of solid lubricants on properties of Al-Si-SiC composite powder produced by gas atomization technique

Popis výsledku v původním jazyce

Al-Si-SiC composites powder was analyzed in this research. The powder was made by gas atomizing process. Powder characterization was done to observe its morphology, particle size distribution and thermal properties. Effects of lubricants were intensively investigated in this research with compositions and pressure variables. It is assumed that higher amount of solid lubricant put into the powder, the lower ejection force needed to take out compacted powder. Finding appropriate solid lubricant is necessary to improve green and sintering properties. EBS (ethylene bis stearamide), aluminum stearate, zinc stearate and paraffin wax were used for investigation. Sintering under ultra high purity nitrogen gas 99.9999% was carried out to produce high density material. SEM-EDS and XRD were carried to characterize this powder. SiC particles in this powder prohibit to achieve optimum sintering properties of Al-Si-SiC due to their resistance during compaction which leads to form pores and lower sintering density. And ethylene bis stearamide (EBS) seems to be suitable solid lubricant for this powder by giving lower ejection force, flowability and higher sintering density for 93.5%.

Název v anglickém jazyce

Effects of solid lubricants on properties of Al-Si-SiC composite powder produced by gas atomization technique

Popis výsledku anglicky

Al-Si-SiC composites powder was analyzed in this research. The powder was made by gas atomizing process. Powder characterization was done to observe its morphology, particle size distribution and thermal properties. Effects of lubricants were intensively investigated in this research with compositions and pressure variables. It is assumed that higher amount of solid lubricant put into the powder, the lower ejection force needed to take out compacted powder. Finding appropriate solid lubricant is necessary to improve green and sintering properties. EBS (ethylene bis stearamide), aluminum stearate, zinc stearate and paraffin wax were used for investigation. Sintering under ultra high purity nitrogen gas 99.9999% was carried out to produce high density material. SEM-EDS and XRD were carried to characterize this powder. SiC particles in this powder prohibit to achieve optimum sintering properties of Al-Si-SiC due to their resistance during compaction which leads to form pores and lower sintering density. And ethylene bis stearamide (EBS) seems to be suitable solid lubricant for this powder by giving lower ejection force, flowability and higher sintering density for 93.5%.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA17-13573S" target="_blank" >GA17-13573S: Kovové materiály s vnitřní architekturou strukturované pro studenou kinetizaci</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF METALS MATERIALS AND MINERALS

ISSN

0857-6149

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

TH - Thajské království

Počet stran výsledku

9

Strana od-do

55-63

Kód UT WoS článku

000576448800008

EID výsledku v databázi Scopus

2-s2.0-85099925809