Effect of Pore Shape on the Electrical Property of Porous LNKN Piezoceramics

Autor:	Kazushige Ohbayashi, Ken-ichi Kakimoto, Katsuya Yamagiwa, Takeshi Mitsuoka, Y. Fukui
Rok vydání:	2008
Předmět:	Materials science Sintering Condensed Matter Physics Piezoelectricity Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Dielectric loss Fiber Ceramic Methyl methacrylate Composite material Porosity Porous medium
Zdroj:	Ferroelectrics. 367:133-138
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150190802375144
Popis:	Porous Li 0.06 (Na 0.5 K 0.5 ) 0.94 NbO 3 (LNKN-6) piezoceramics with different pore shapes and volumes have been fabricated by sintering a mixture of calcinated LNKN-6 powder and volatilizable pore formers of phenol resin fibers (Kynol™) or plastic spheres [poly(methyl methacrylate)] (PMMA). Kynol™ fiber was shown to more effective for inducing open-pore formation in the ceramics than PMMA sphere. The porous LNKN-6 ceramics prepared using Kynol™ fiber demonstrated lower dielectric loss, higher piezoelectric constant (d 33 ), and higher piezoelectric voltage coefficient (g 33 ) than those prepared using PMMA sphere. The effect of pore shape on the electrical property was investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b3aee0381630393a2997f6fa0de93f02 https://doi.org/10.1080/00150190802375144 Zobrazit plný text záznamu