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master's thesis
Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. urn:nbn:hr:235:720400
Markač, Tomislav
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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Markač, T. (2018). Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:720400

Markač, Tomislav. "Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. https://urn.nsk.hr/urn:nbn:hr:235:720400

Markač, Tomislav. "Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. https://urn.nsk.hr/urn:nbn:hr:235:720400

Markač, T. (2018). 'Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 20 April 2024, https://urn.nsk.hr/urn:nbn:hr:235:720400

Markač T. Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2018 [cited 2024 April 20] Available at: https://urn.nsk.hr/urn:nbn:hr:235:720400

T. Markač, "Određivanje stabilnosti keramičkih suspenzija sedimentacijskim testom", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:235:720400

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Metadata
TitleOdređivanje stabilnosti keramičkih suspenzija sedimentacijskim testom
Title (english)Determination of stability of ceramics suspension by means of sedimentation test
AuthorTomislav Markač
MentorLidija Ćurković (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2018-12-06, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
U ovom radu prikazan je utjecaj pojedinih disperzanata na stabilnost keramičke suspenzije koja se koristi za oblikovanje keramičkih proizvoda postupkom lijevanja iste. Pripravljene su 20 %-tne Al 2 O 3 vodene suspenzije stabilizirane s četiri različita disperzanta, pri različitim pH vrijednostima u rasponu od cca 2 do cca 11. Korišteni su sljedeći disperzanti: • Natrijeva sol sulfonske kiseline (Tiron, 0,1 %) • Limunska kiselina (0,1 %) • Amonij polimetakrilat (Darvan C-N, 0,6 %) • Polielektrolit na bazi karbonske kiseline (Dolapix CE-64, 0,2 %). Ispitan je utjecaj pH vrijednosti na stabilnost priređenih 20 %-tnih Al2O3 vodenih suspenzija stabiliziranih s navedenim disperzanatima. Stabilnost suspenzija određena je sedimentacijskom testovima mjerenjem volumena sedimenta u vremenskim intervalima od 15 min, 1 sat, 2 sata, 24 sata, 48 sati, 72 sata, 96 sati i 168 sati. Dobiveni rezultati pokazuju da na stabilnost 20 %-tne Al2O3 vodene suspenzije utječe vrsta disperzanta, pH vrijednost suspenzije i vrijeme sedimentacije.
Abstract (english)
This thesis shows the influence of certain dispersants on stability of ceramic suspension, which is used for shaping ceramic products using slip casting method. Al2O3 aqueous suspensions with solid loading of 20 wt. % stabilized with different dispersants were prepared at different pH values ranging from about 2 to about 11. Following dispersants were used: • 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate (Tiron, 0,1 % of dry matter mass) • Citric acid monohydrate (0,1 % of dry matter mass) • Ammonium polymetacrylate (Darvan C-N, 0,6 % of dry matter mass) • Carbonic acid based polyelectrolyte (Dolapix CE-64, 0,2 % of dry matter mass) Influence of pH values on stability of prepared Al2O3 aqueous suspensions (with solid loading of 20 wt. % and dispersants) was tested. Stability of suspension is determined by sedimentation tests in which volume of sediment was measured at different time intervals: 15 minutes, 1 hour, 2 hours, 24 hours, 48 hours, 72 hours, 96 hours and 168 hours. The results show that stability of Al2O3 aqueous suspension (with solid loading of 20 wt. %) is influenced by type of dispersant used, pH value of suspension and sedimentation time.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:720400
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
RepositoryRepository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb
Created on2019-05-24 13:03:08

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