Effects of PVA Polymer Type and Calcination Temperature on Synthesis of Nanocrystalline Yttria Powder by Polymer Solution Route

• Autorzy: Yang Y.-K. , Lee S.-J.

Identyfikatory

DOI

10.24425/123832

• Języki publikacji: EN

Abstrakty

EN

Nano-sized yttria (Y₂O₃) powders were synthesized by a polymer solution route using polyvinyl alcohol (PVA) as an organic carrier. The PVA polymer affected the dispersion of yttrium ions in precursor sol. In this study, three kinds of PVA polymer (different molecular weight) were applied for synthesis of yttria powder. The PVA type as well as calcination temperature had a strongly influence on the particle morphology. Single crystal nano wire particles were observed at the temperature of polymer burn out range and the size was dependent on the PVA type. The stable, fully crystallized yttria powder was obtained through the calcination at 800°C for 1 h. The yttria powder prepared with the high weight PVA (MW: 153,000) revealed a particle size of 30 nm with a surface area of 18.8 m²/g.

Słowa kluczowe

EN

yttria; PVA; nanocrystalline; synthesis; nanowire

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1473--1476
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Yang Y.-K.

• Mokpo National University, Department of Advanced Materials Science and Engineering, 1666 Youngsan Rd., Muan-Gun, Chonnam 534-729, Korea

autor

Lee S.-J.

• Mokpo National University, Department of Advanced Materials Science and Engineering, 1666 Youngsan Rd., Muan-Gun, Chonnam 534-729, Korea
• Mokpo National University, Research Institute of Ceramic Industry and Technology, Muan, Korea

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).