Pyroelectric surface charge in hydroxyapatite ceramics

S. A.M. Tofail, C. Baldisserri, D. Haverty, J. B. McMonagle, J. Erhart

Research output: Contribution to journalArticlepeer-review

Abstract

Surface charge of pyroelectric nature is measured in poled hydroxyapatite ceramics. The average pyroelectric constant can range from 0.1 to 40 nC cm -2 K-1 at temperatures of 300-500 °C, while at 27-60 °C the value ranges from 15 to 64 nC cm-2 K-1. The higher temperature values are comparable to conventional pyroelectric ceramics such as LiTaO3 or PZT. The lower temperature values are four orders higher than those observed in bone and tendon.

Original languageEnglish
Article number106104
JournalJournal of Applied Physics
Volume106
Issue number10
DOIs
Publication statusPublished - 2009

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