Thermal Dilatation in Pb(Zn1/3Nb2/3)O3Crystal

Shōichiro Nomura, Masanori Abe, Fumiko Kojima, Kenji Uchino

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Abstract

The temperature dependence of the cell dimension of Pb(Zn1/3Nb2/3)03. crystal was investigated in the temperature range between liquid nitrogen temperature and 400°C by using an X-ray diffractometer and a thermal dilatometer of differential transformer type. The latticeconstant a increases with increasing temperature and the rhombohedral angle α approaches 90° at about 150°C. An anomaly in thermal dilatation was observed over a wide range of temperatures, corresponding to a diffuse transition from ferroelectric to paraelectric phase. The linear thermal expansion coefficient decreases with increasing temperature in the ferroelectric phase, reaches a minimum at about 120°C, and then gradually increases to a constant value(10.0×10-6K-1)in the higher temperature region.

Original languageEnglish (US)
Pages (from-to)1881-1884
Number of pages4
JournalJapanese Journal of Applied Physics
Volume14
Issue number12
DOIs
StatePublished - Dec 1975

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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