| Status | 已發表Published |
| Preparation and structure of Ba2Ti9O20 and BaTi4O9 ceramics derived from sol-gel powders | |
| Lu S.G.1; Chen H.1; Mak C.L.2; Wong K.H.2; Chan H.W.L.2; Choy C.L.2 | |
| 2005-12-01 | |
| Source Publication | Key Engineering Materials
 |
| Volume | 280-283 |
| Issue | I |
| Pages | 47-52 |
| Abstract | BaTiO (B2T9) and BaTi O (BT4) ceramics have been fabricated using sol-gel technique. The sol-gel derived powder was produced from barium acetate and butyl titanate using acetic acid as solvent. The as-prepared powders were then calcined at different temperatures ranging from 600° to 1200°C. After that, the powder was pressed into pellets and further sintered at different temperatures ranging from 1250°C to 1380°C. XRD characterization and Raman spectroscopy showed that after calcining the sol-gel powder at 900°C for 2 h and sintering the pressed pellets at 1330°C for 4 h, triclinic B2T9 and orthorhombic BT4 ceramics could be obtained, The dielectric constant and Q-value are 35 and 1910 at 6.1 GHz. |
| Keyword | Ba2Ti9O20 BaTi4O9 Microwave dielectrics Sol-gel process |
| URL | View the original |
| Language | 英語English |
| Fulltext Access | |
| Document Type | Conference paper |
| Collection | University of Macau |
| Affiliation | 1.City University of Hong Kong 2.Hong Kong Polytechnic University |
| Recommended Citation GB/T 7714 | Lu S.G.,Chen H.,Mak C.L.,et al. Preparation and structure of Ba2Ti9O20 and BaTi4O9 ceramics derived from sol-gel powders[C], 2005, 47-52. |
| APA | Lu S.G.., Chen H.., Mak C.L.., Wong K.H.., Chan H.W.L.., & Choy C.L. (2005). Preparation and structure of Ba2Ti9O20 and BaTi4O9 ceramics derived from sol-gel powders. Key Engineering Materials, 280-283(I), 47-52. |
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