Počet záznamů: 1
The effect of powder characteristics on pressure sensitivity of powder injection moulding compounds
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SYSNO ASEP 0351791 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The effect of powder characteristics on pressure sensitivity of powder injection moulding compounds Tvůrce(i) Hausnerová, B. (CZ)
Sedláček, T. (CZ)
Filip, Petr (UH-J) ORCID, RID, SAI
Sáha, P. (CZ)Celkový počet autorů 4 Zdroj.dok. Powder Technology. - : Elsevier - ISSN 0032-5910
Roč. 206, č. 3 (2011), s. 209-213Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova pressure sensitivity coefficients ; modified capillary rheometer ; particle size distribution ; PIM technology ; carbide powder ; binder Vědní obor RIV BK - Mechanika tekutin CEP GA103/08/1307 GA ČR - Grantová agentura ČR CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000286299200001 DOI https://doi.org/10.1016/j.powtec.2010.08.065 Anotace Pressure effect on the rheological behaviour of powder–polymer compounds intended for powder injection moulding was determined. A single-piston capillary rheometer modified by addition of a second chamber with a restricting needle valve generating backpressure increasing the pressure in the melted material during the flow through the die was employed to determine pressure sensitivity coefficients. The results obtained for three compounds varying in the characteristics of powders used confirmed that compounds at the loading level close to the maximum packing are more sensitive to pressure than polymer binder. It is shown that pressure sensitivity coefficients of these materials are strongly dependent on powder characteristics - particle size and particle size distribution. The highest coefficient (32.9 GPa−1) was found for compound containing broad particle size distributed powder having a perceptible portion of small particles. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2011
Počet záznamů: 1