Abstract
A relaxor ferroelectric material, Pb(Mg1/3Nb2/3) O3 (PMN) powder with a pyrochlore-free phase, was prepared by using a one-step calcinations method. The pyrochlore phase was prevented by coating Mg(OH)2 on Nb2O5 particles. Pure-perovskite PMN powder was synthesized by a single calcination of the coating powder mixed with appropriate amounts of PbO at 900°C for 2 h. The pyrochl ore-free perovskite PMN powders were sintered to 96.9% density at 100°C. The sintered PMN ceramics exhibited a dielectric constant maximum of ∼11 700 at room temperature at a frequency of 1 kHz.
Original language | English |
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Pages (from-to) | 255-258 |
Number of pages | 4 |
Journal | Advanced Materials Research |
Volume | 24-25 |
DOIs | |
State | Published - 2007 |
Event | PRICM 6: The 6th Pacific Rim International Conference on Advanced Materials and Processing - Jeju Island, Korea, Republic of Duration: 5 Nov 2007 → 9 Nov 2007 |
Keywords
- Ceramic
- Perovskite
- PMN
- Relaxor ferroelectric