Transparent PZ-PT-PZN and PLZT Ceramics Prepared by Spark Plasma Sintering and Heat-Treatment
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Spark Plasma Sintering
SPARK (programming language)
Lead zirconate titanate
Lead oxide
Lanthanum
Lanthanum oxide
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Spark Plasma Sintering
SPARK (programming language)
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High energy
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龙廉骏 1 , 徐建梅 1 , 公衍生 1 , 武明阳 1 , 崔新友 2 (1.中国地质大学(武汉) 材料与化学学院, 武汉 430074; 2. 武汉烽火富华电气有限责任公司, 武汉 430074) 摘 要: 采用部分共沉淀法制备锆钛酸铅镧(PLZT)粉体, 分别用普通马弗炉和微波马弗炉进行烧结成瓷, 对比分析 不同烧结方法对 PLZT 陶瓷的晶体结构、微观形貌和电学性能的影响。结果表明: 微波烧结和常规烧结均成功制备 出钙钛矿相 PLZT 陶瓷。采用微波烧结得到的 PLZT 陶瓷样品比常规烧结的晶粒细小
Muffle furnace
Lead zirconate titanate
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Transparent ceramics
Relative density
Hysteresis
Lead zirconate titanate
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Spark Plasma Sintering
Instrumentation
SPARK (programming language)
Spark discharge
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Feroelectric lead lanthanum zirconate titanate (PLZT) ceramics 9/70/30 were synthesized by conventional mixed-oxide method via a vibro-milling technique. The effect of sintering temperature and two-stage sintering method on electrical properties of PLZT ceramics was investigated. The ceramic powder was uniaxially pressed in pellets and sintered at the temperatures ranging from 1200 to 1275 °C for 4hrs and two-stage sintering temperature at 1200 °C for 4 hrs. Dielectric, ferroelectric and strain properties of ceramics were characterized by LCR meter, modified Sawyer–Tower Circuit and modified Michelson interferometric technique respectively.
Lead zirconate titanate
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Quinary system piezoelectric ceramics PSN-PZN-PMS-PZT were prepared by columbite process. The effects of sintering temperature on density, porosity, grain sizes, piezoelectric and dielectric properties of the Pb(Sn1/3Nb2/3)0.03(Zn1/3Nb2/3)0.03 (Mn1/3Sb2/3)0.04Zr0.435Ti0.465O3 piezoelectric ceramics were investigated. The influences of heating rate and soaking time on piezoelectric and dielectric properties were also studied. The results show that densification decreased with heating rate. Measurements on polarized products indicated that material with excellent performance are developed, and the optimized results of r (1 390), tC (310℃), d33 (300 pC/N), kp (55.1%) and Qm (1 180) are obtained at sintering temperatures of 1 260℃ for 3 h.
Columbite
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Sodium bismuth titanate [(0.15BaTiO3–0.85(Bi0.5Na0.5)TiO3], hereafter 0.15BT–0.85BNT, powder was prepared using hydrothermal synthesis. The particle size was approximately 0.1 µm. In addition, 0.15BT–0.85BNT ceramics were fabricated using the spark plasma sintering technique. Sintering was performed at 1273 K for 10 min. The relative density, grain size, and piezoelectric constant of the obtained ceramics were approximately 97%, 0.25 µm, and 12 pC/N, respectively. To our knowledge, this would be the first attempt to synthesize 0.15BT–0.85BNT piezoceramics featuring submicron-sized grains.
Spark Plasma Sintering
Relative density
Bismuth titanate
Bismuth
Hydrothermal Synthesis
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