Processing of Porous 3-3 PZT Ceramics Using Capsule-Free O_2-HIP : Piezoelectrics
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概要
- 論文の詳細を見る
The processing of porous 3-3 type PZT ceramics was investigated using capsule-free O_2-HIP. Porous PZT sintered bodies with relative density of about 50-80% were prepared from the green compacts with various amounts of spherical Polymethylmethacrylate (PMMA) particles. They exhibited a homogeneous microstructure with a bimodal distribution consisting of small pores of several μm and large pores of 50-80 μm in the PZT matrix. Little densification of porous PZT sintered bodies occurred after capsule-free O_2-HIP treatment, and the neck growth of PZT interparticles was well developed, leading to the formation of porous 3-3 type PZT ceramics with a higher connectivity. The HIPed porous ceramics possesed a large permittivity and a small depolarizing factor of about half those of normally sintered porous PZT bodies.
- 社団法人応用物理学会の論文
- 1991-09-30
著者
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HAYASHI Takashi
Department of Materials Science, Shonan Institute of Technology
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Sugihara Sunao
Department Of Materials And Ceramic Technology Shonan Institute Of Technology
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Sugihara Sunao
Department Of Material Science And Ceramic Technology Shonan Institute Of Technology
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Okazaki Kiyoshi
Department Of Electrical Engineering The Natinal Defense Academy
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Hayashi Takashi
Department Of Applied Chemistry Graduate School Of Engineering Osaka University
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Okazaki Kiyoshi
Department Of Materials And Ceramic Technology Shonan Institute Of Technology
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Hayashi Takashi
Department Of Materials And Ceramic Technology Shonan Institute Of Technology
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Okazaki Kiyoshi
Department of Applied Physics, Tokyo Institute of Technology
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