Piezoelectric Properties and Densification Based on Control of Volatile Mass of Potassium and Sodium in (K0.5Na0.5)NbO3 Ceramics
スポンサーリンク
概要
- 論文の詳細を見る
Recently lead-free ceramic systems have been intensively studied in order to fabricate environmentally friendly piezoelectric ceramics and replace widely used lead-free piezoelectric ceramics. The (K0.5Na0.5)NbO3 (KNN) piezoelectric ceramics with non-lead piezoelectric ceramics were manufactured by conventional solid-state synthesis, and we obtained sintered bodies with relative densities over 97.4% by adding excess K (0.44 mol %)/Na (0.22 mol %) to improve sinterability. The composition of the sintered bodies was close to stoichiometric compounds. The electromechanical coupling factor ($k_{\text{p}}$) and piezoelectric constant ($d_{33}$) of KNN + excess K (0.44 mol %)/Na (0.22 mol %) composition ceramics showed optimal values of 0.341 and 126 pC/N, respectively.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-06-25
著者
-
Cho Jeong-ho
Department Of Materials Science And Engineering Korea Advanced Institute Of Science And Technology
-
Choi Duck-kyun
Department Of Ceramic Engineering Hanyang University
-
Lee Yong-hyun
Department Ceramic Engineering, Hanyang University, Seoul 133-791, Korea
-
Kim Byung-ik
Department of Ceramic Building Materials Research, Korea Institute of Ceramic Engineering and Technology, Seoul 153-023, Korea
-
Cho Jeong-ho
Department of Ceramic Building Materials Research, Korea Institute of Ceramic Engineering and Technology, Seoul 153-023, Korea
-
Choi Duck-kyun
Department Ceramic Engineering, Hanyang University, Seoul 133-791, Korea
関連論文
- Field Aided Lateral Crystallization of Amorphous Silicon Thin Film
- Effect of Forming Gas Anneal on the Properties of (Ba, Sr)RuO_3 and (Ba, Sr)TiO_3 : Semiconductors
- Role of tktA Gene in Pentose Phosphate Pathway on Odd-Ball Biosynthesis of Poly-β-hydroxybutyrate in Transformant Escherichia coli Harboring phbCAB Operon(GENETICS, MOLECULAR BIOLOGY, AND GENE ENGINEERING)
- The Effects of Cd-Substitution Site on Sintering Behavior and Electrical Properties in Pb(Ni_Nb_)O_3-PbZrO_3-PbTiO_3 Ceramics
- 606 CHARACTERIZATION OF CYCLODEXTRIN GLUCANOTRANSFERASE RROM Bacillus firmus var. alkalophilus BY CHEMICAL MODIFICATION
- Comparative Effect of Overexpressed phaJ and fabG Genes Supplementing (R)-3-Hydroxyalkanoate Monomer Units on Biosynthesis of mcl-Polyhydroxyalkanoate in Pseudomonas putida KCTC1639(GENETICS, MOLECULAR BIOLOGY, AND GENE ENGINEERING)
- Regulating the Molar Fraction of 4-Hydroxybutyrate in Poly(3-Hydroxybutyrate-4-hydroxybutyrate) Biosynthesis by Ralstonia eutropha Using Propionate as a Stimulator
- Modulation of talA Gene in Pentose Phosphate Pathway for Overproduction of Poly-β-Hydroxybutyrate in Transformant Escherichia coli Harboring phbCAB Operon(GENETICS, MOLECULAR BIOLOGY, AND GENE ENGINEERING)
- 2D17-2 Enterobacter sp. BL-2 Excreting Microbial Polyglucosamine Biopolymer and Its Morphological Variation under Acetate-Mediated pH Environment
- Metabolic Characteristics of Isocitrate Dehydrogenase Leaky Mutant of Alcaligenes eutrophus and Its Utilization for Poly-β-Hydroxybutyrate Production
- 345 Metabolic Characteristics of Isocitrate Dehydrogenase Leaky Mutant of Alcaligenes eutrophus and Its Utilization for Poly-β-hydroxybutyrate Production
- Amplification of the NADPH-Related Genes zwf and gnd for the Oddball Biosynthesis of PHB in an E. coli Transformant Harboring a Cloned phbCAB Operon
- Effects of Cd-substitution Site on PbO Evaporation in Pb(Ni_Nb_)O_3-PbZrO_3-PbTiO_3 Ceramics
- Influences of Various Metal Elements on Field Aided Lateral Crystallization of Amorphous Silicon Films : Semiconductors
- La-Ca-Mn-O Thin Film based Thermistor for Measuring Low Temperature of 77-230K
- The Influence of Cu and Au on Field Aided Lateral Crystallization of Amorphous Silicon Films
- Crystallization of Self-Implanted Amorphous Silicon Films : 招待講演I
- Cu-Field Aided Lateral Crystallization (FALC) of Amorphous Silicon Films below 450℃
- Cu-Field Aided Lateral Crystallization (FALC) of Amorphous Silicon Films below 450℃
- Evaluation of the Disadvantage of Radio Frequency Plasma Treatment on Polymer using Equivalent Circuit Model of Capacitor
- Electrical Characterization of Ferroelectric Pb(Zr, Ti)O3 Thin Films Deposited on Pt-Coated RuO2 Electrodes
- Cantilever Type Lead Zirconate Titanate Microactuator Utilizing Ruthenium Oxide
- Piezoelectric Properties and Densification Based on Control of Volatile Mass of Potassium and Sodium in (K0.5Na0.5)NbO3 Ceramics
- Fabrication and Characterization of Pb(Zr,Ti)O3 Microcantilever for Resonance Sensors
- Spike Annealing Effect on Cu-Field Aided Lateral Crystallization
- Auger Electron Spectroscopy Study on the Tolerance to Forming Gas Anneal of (Ba, Sr)TiO3 with SiO2 capped (Ba, Sr)RuO3 Electrode
- Cantilever Type Lead Zirconate Titanate Microactuator Utilizing Ruthenium Oxide