Energetics of ternary nitride formation in the (Li,Ca) - (B,Al) - N system

J. M. McHale, A. Navrotsky, F. J. Disalvo

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

High-temperature oxide melt drop solution calorimetry was used to study the energetics of nitride formation. The standard enthalpies of formation of several binary and ternary nitrides were determined. These values (in kJ mol-1) are as follows: ΔHfo (AlN) = -311.1 ± 4.3, ΔHfo (Li3BN2) = -534.5 ± 16.7, ΔHfo (Li3AlN2) = -567.8 ± 12.4, and ΔHfo (Ca3B2N4) = -1062.1 ± 15.4. From these values and others available in the literature, the enthalpies of formation of the ternary nitrides from the binary nitrides were calculated. The energetics of ternary nitride formation appear to be dominated by differences in the acid/base character of the cations.

Original languageEnglish (US)
Pages (from-to)1148-1152
Number of pages5
JournalChemistry of Materials
Volume11
Issue number4
DOIs
StatePublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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