Ni4Nb2O9 ceramics prepared by the reaction-sintering process

Yi Cheng Liou, Zong Sian Tsai, Kuan Zong Fung, Chi Yang Liu

研究成果: Article

13 引文 (Scopus)

摘要

Fabrication of Ni4Nb2O9 ceramics via a reaction-sintering process was investigated. A mixture of raw materials was sintered into ceramics by bypassing calcination and subsequent pulverization stages. Ni4Nb2O9 phase appeared at 1300 °C and increased with increasing soak time. Ni4Nb2O9 content was found >96% in 1350 °C/2 h sintering pellets. A density of 5.71 g/cm3 was obtained for pellets sintered at 1350 °C for 2 h. This reaches 96.5% of the theoretical density. As the sintering temperature increased to 1350 °C, an abnormal grain growth occurred and grains >100 μm could be found. εr of 15.4-16.9 are found in pellets sintered at 1200-1300 °C. Q × f increased from 9380 GHz in pellets sintered at 1200 °C to 14,650 GHz in pellets sintered at 1250 °C.

原文English
頁(從 - 到)1887-1892
頁數6
期刊Ceramics International
36
發行號6
DOIs
出版狀態Published - 2010 八月 1

指紋

Sintering
Grain growth
Calcination
Raw materials
Fabrication
Temperature
Pulverization

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

引用此文

Liou, Yi Cheng ; Tsai, Zong Sian ; Fung, Kuan Zong ; Liu, Chi Yang. / Ni4Nb2O9 ceramics prepared by the reaction-sintering process. 於: Ceramics International. 2010 ; 卷 36, 編號 6. 頁 1887-1892.
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Ni4Nb2O9 ceramics prepared by the reaction-sintering process. / Liou, Yi Cheng; Tsai, Zong Sian; Fung, Kuan Zong; Liu, Chi Yang.

於: Ceramics International, 卷 36, 編號 6, 01.08.2010, p. 1887-1892.

研究成果: Article

TY - JOUR

T1 - Ni4Nb2O9 ceramics prepared by the reaction-sintering process

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AU - Tsai, Zong Sian

AU - Fung, Kuan Zong

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PY - 2010/8/1

Y1 - 2010/8/1

N2 - Fabrication of Ni4Nb2O9 ceramics via a reaction-sintering process was investigated. A mixture of raw materials was sintered into ceramics by bypassing calcination and subsequent pulverization stages. Ni4Nb2O9 phase appeared at 1300 °C and increased with increasing soak time. Ni4Nb2O9 content was found >96% in 1350 °C/2 h sintering pellets. A density of 5.71 g/cm3 was obtained for pellets sintered at 1350 °C for 2 h. This reaches 96.5% of the theoretical density. As the sintering temperature increased to 1350 °C, an abnormal grain growth occurred and grains >100 μm could be found. εr of 15.4-16.9 are found in pellets sintered at 1200-1300 °C. Q × f increased from 9380 GHz in pellets sintered at 1200 °C to 14,650 GHz in pellets sintered at 1250 °C.

AB - Fabrication of Ni4Nb2O9 ceramics via a reaction-sintering process was investigated. A mixture of raw materials was sintered into ceramics by bypassing calcination and subsequent pulverization stages. Ni4Nb2O9 phase appeared at 1300 °C and increased with increasing soak time. Ni4Nb2O9 content was found >96% in 1350 °C/2 h sintering pellets. A density of 5.71 g/cm3 was obtained for pellets sintered at 1350 °C for 2 h. This reaches 96.5% of the theoretical density. As the sintering temperature increased to 1350 °C, an abnormal grain growth occurred and grains >100 μm could be found. εr of 15.4-16.9 are found in pellets sintered at 1200-1300 °C. Q × f increased from 9380 GHz in pellets sintered at 1200 °C to 14,650 GHz in pellets sintered at 1250 °C.

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