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Pregled bibliografske jedinice broj: 1003936

Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design


Vukšić, Milan; Žmak, Irena; Ćurković, Lidija; Ćorić, Danko
Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design // Materials, 12 (2019), 11; 1738, 16 doi:10.3390/ma12111738 (međunarodna recenzija, članak, znanstveni)


Naslov
Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design

Autori
Vukšić, Milan ; Žmak, Irena ; Ćurković, Lidija ; Ćorić, Danko

Izvornik
Materials (1996-1944) 12 (2019), 11; 1738, 16

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Alumina ceramics ; waste alumina ; slip casting ; recycling ; response surface methodology ; optimization ; additives ; stabilization

Sažetak
The green machining of alumina (Al2O3) green bodies generates a certain amount of waste alumina powder. Waste alumina ceramic powder should be disposed of as non-hazardous waste in a legally compliant manner. The influence of additives on the stability of 70 wt.% (≈40 vol.%) alumina—waste alumina water-based suspension was investigated in the presented research. A Box-Behnken three-factor response surface design was used for the preparation of stable highly-concentrated suspensions with the addition of three additives. The optimal amount of each additive was selected according to the obtained results of minimal apparent viscosity: 0.05 wt.% Tiron as dispersant, 0.1 wt.% poly (vinyl alcohol) as binder and 0.2 wt.% magnesium aluminate spinel as abnormal grain growth inhibitor. The analysis of variance was used to identify the contribution of each additive. The zeta potential and sedimentations tests were performed to confirm the suspension stability measurements at different pH values. Alumina particles were optimally dispersed at pH values between 8 and 11. According to the results, the investigated composition of 20 wt.% waste alumina powder (weight content, dry alumina powder), with the addition of optimal amounts of additives, shows a possible application in the production of ceramics by slip casting.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2016-06-6000 - Napredna monolitna i kompozitna keramika za zaštitu od trošenja i korozije (Lidija Ćurković, )

Ustanove
Fakultet strojarstva i brodogradnje, Zagreb

Citiraj ovu publikaciju

Vukšić, Milan; Žmak, Irena; Ćurković, Lidija; Ćorić, Danko
Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design // Materials, 12 (2019), 11; 1738, 16 doi:10.3390/ma12111738 (međunarodna recenzija, članak, znanstveni)
Vukšić, M., Žmak, I., Ćurković, L. & Ćorić, D. (2019) Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design. Materials, 12 (11), 1738, 16 doi:10.3390/ma12111738.
@article{article, year = {2019}, pages = {16}, DOI = {10.3390/ma12111738}, chapter = {1738}, keywords = {alumina ceramics, waste alumina, slip casting, recycling, response surface methodology, optimization, additives, stabilization}, journal = {Materials}, doi = {10.3390/ma12111738}, volume = {12}, number = {11}, issn = {1996-1944}, title = {Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design}, keyword = {alumina ceramics, waste alumina, slip casting, recycling, response surface methodology, optimization, additives, stabilization}, chapternumber = {1738} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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