### Abstract

The pressure derivatives of elastic moduli (partial differentialM/ partial differentialP; M=K(s) and G) for a suite of polycrystalline oxide perovskites (2 titanates, 1 stannate and 2 aluminates) have been measured up to 3 GPa using the ultrasonic interferometry method combined with a buffer rod technique. Two empirical systematic relationships (partial differentialG/partial differentialP vs K(s)/G and partial differentialK(s)/partial differentialP vs K(s) (M/p)(1/3)) have been used to investigate the elasticity systematics of this suite of perovskites and to estimate partial differentialM/partial differentialP of MgSiO_{3} perovskite. The pressure derivatives partial differentialG/partial differentialP and partial differentialK(s)/partial differentialP for this suite of perovskites scatter between well-defined linear trends for the rutile, rocksalt and spinel structures. The more diffuse trends observed for the perovskites might reflect greater flexibility in the response of its corner-connected octahedral framework structure to changing pressure. The pressure derivatives of the elastic moduli for MgSiO_{3} perovskite estimated by the 'perovskite bands' are partial differentialG/partial differentialP=1.6-2.2 and partial differentialK(S)/partial differentialP=3.9-4.2.

Original language | English |
---|---|

Pages (from-to) | 234-241 |

Number of pages | 8 |

Journal | Physics and Chemistry of Minerals |

Volume | 26 |

Issue number | 3 |

DOIs | |

Publication status | Published - 1999 Feb 1 |

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### All Science Journal Classification (ASJC) codes

- Materials Science(all)
- Geochemistry and Petrology

### Cite this

*Physics and Chemistry of Minerals*,

*26*(3), 234-241. https://doi.org/10.1007/s002690050182

}

*Physics and Chemistry of Minerals*, vol. 26, no. 3, pp. 234-241. https://doi.org/10.1007/s002690050182

**Oxide perovskites : Pressure derivatives of the bulk and shear moduli.** / Kung, Hui-Chen; Rigden, S.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Oxide perovskites

T2 - Pressure derivatives of the bulk and shear moduli

AU - Kung, Hui-Chen

AU - Rigden, S.

PY - 1999/2/1

Y1 - 1999/2/1

N2 - The pressure derivatives of elastic moduli (partial differentialM/ partial differentialP; M=K(s) and G) for a suite of polycrystalline oxide perovskites (2 titanates, 1 stannate and 2 aluminates) have been measured up to 3 GPa using the ultrasonic interferometry method combined with a buffer rod technique. Two empirical systematic relationships (partial differentialG/partial differentialP vs K(s)/G and partial differentialK(s)/partial differentialP vs K(s) (M/p)(1/3)) have been used to investigate the elasticity systematics of this suite of perovskites and to estimate partial differentialM/partial differentialP of MgSiO3 perovskite. The pressure derivatives partial differentialG/partial differentialP and partial differentialK(s)/partial differentialP for this suite of perovskites scatter between well-defined linear trends for the rutile, rocksalt and spinel structures. The more diffuse trends observed for the perovskites might reflect greater flexibility in the response of its corner-connected octahedral framework structure to changing pressure. The pressure derivatives of the elastic moduli for MgSiO3 perovskite estimated by the 'perovskite bands' are partial differentialG/partial differentialP=1.6-2.2 and partial differentialK(S)/partial differentialP=3.9-4.2.

AB - The pressure derivatives of elastic moduli (partial differentialM/ partial differentialP; M=K(s) and G) for a suite of polycrystalline oxide perovskites (2 titanates, 1 stannate and 2 aluminates) have been measured up to 3 GPa using the ultrasonic interferometry method combined with a buffer rod technique. Two empirical systematic relationships (partial differentialG/partial differentialP vs K(s)/G and partial differentialK(s)/partial differentialP vs K(s) (M/p)(1/3)) have been used to investigate the elasticity systematics of this suite of perovskites and to estimate partial differentialM/partial differentialP of MgSiO3 perovskite. The pressure derivatives partial differentialG/partial differentialP and partial differentialK(s)/partial differentialP for this suite of perovskites scatter between well-defined linear trends for the rutile, rocksalt and spinel structures. The more diffuse trends observed for the perovskites might reflect greater flexibility in the response of its corner-connected octahedral framework structure to changing pressure. The pressure derivatives of the elastic moduli for MgSiO3 perovskite estimated by the 'perovskite bands' are partial differentialG/partial differentialP=1.6-2.2 and partial differentialK(S)/partial differentialP=3.9-4.2.

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U2 - 10.1007/s002690050182

DO - 10.1007/s002690050182

M3 - Article

VL - 26

SP - 234

EP - 241

JO - Physics and Chemistry of Minerals

JF - Physics and Chemistry of Minerals

SN - 0342-1791

IS - 3

ER -