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Synthesis of Yttria Stabilized Zirconia by Sol-gel Precipitation Using PEG and PVA as Stabilizing Agent
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  • Synthesis of Yttria Stabilized Zirconia by Sol-gel Precipitation Using PEG and PVA as Stabilizing Agent
  • Synthesis of Yttria Stabilized Zirconia by Sol-gel Precipitation Using PEG and PVA as Stabilizing Agent
저자명
Bramhe. Sachin N.,Lee. Young Pil,Nguyen. Tuan Dung,Kim. Taik-Nam
간행물명
한국재료학회지
권/호정보
2013년|23권 8호|pp.441-446 (6 pages)
발행정보
한국재료학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

There is increasing interest in zirconia as a dental material due to its aesthetics, as well as the exceptionally high fracture toughness and high strength that are on offer when it is alloyed with certain oxides like yttria. In recent years, many solution based chemical synthesis methods have been reported for synthesis of zirconia, of which the sol-gel method is considered to be best. Here, we synthesize zirconia by a sol gel assisted precipitation method using either PEG or PVA as a stabilizing agent. Zirconia sol is first synthesized using the hydrothermal method. We used NaOH as the precipitating agent in this method because it is easy to remove from the final solution. Zirconium and yttrium salts are used as precursors and PEG or PVA are used as stabilizers to separate the metal ions. The resulting amorphous zirconia powder is calcined at $900^{circ}C$ for 2 h to get crystallized zirconia. XRD analysis confirmed the partially stabilized zirconia synthesis in all the synthesized powders. SEM was taken to check the morphology of the powder synthesized using either PEG or PVA as a stabilizing agent and finally the transparency was calculated. The results confirmed that the powder synthesized with 10 % PVA as the stabilizing agent had highest percentage of transparency among all the synthesized powder.