![]() However, conducting these experiments is a time-consuming process. The advantage of high-temperature calorimetry is that it enables the calorimetric study of compounds with high melting points 3. High-temperature calorimetric methods were used for the measurements of enthalpy of formation in the current dataset. Using this approximation, they predicted the stability region of novel high entropy alloys at 1,500 K 2.Ĭalorimetry provides the only direct method by which the enthalpy of formation is experimentally measured. 2 estimated the Gibbs energies of formation of over 1,000 binary intermetallic compounds from their respective enthalpies of formation. In addition, enthalpy of formation data of known compounds are valuable resources for empirical prediction of phase stability of new phases in materials discovery. 11 discovered a new phase (Ge 4Ti 5, space group Pnma) while performing calorimetry experiments in the Ge-Ti system for which there was little literature prior to their work. New phases identified in calorimetry experiments can also help amend existing experimental phase diagrams. 4 measured standard enthalpies of formation of compounds in the Cd-Pr system and used the data to improve the agreement between the calculated Cd-Pr phase diagram and experimental results. The standard enthalpy of formation plays a pivotal role in the definition of Gibbs energy of formation of a compound 1, 2 and is widely used as input in thermodynamic models such as those used in the CALPHAD approach to calculate phase diagrams 3– 10. The standard enthalpy of formation of a compound is the energy associated with the reaction to form the compound from its component elements (at the pressure of 1 atm. The dataset also contains predictions of enthalpy of formation from first-principles calculations for comparison. Most of the entries are for binary compounds but ternary and quaternary compounds are being added as they become available. The dataset contains 1,276 entries on experimental enthalpy of formation values and structural information. These measurements were collected from over 50 years of calorimetric experiments. The phases measured in this dataset include intermetallic compounds with transition metal and rare-earth elements, metal borides, metal carbides, and metallic silicides. We present a dataset of enthalpies of formation measured by high-temperature calorimetry. However, the measurement is often a time and energy intensive process. ![]() Calorimetry provides the only direct method by which the standard enthalpy of formation is experimentally measured. The standard enthalpy of formation is a fundamental thermodynamic property that determines its phase stability, which can be coupled with other thermodynamic data to calculate phase diagrams. The standard enthalpy of formation of a compound is the energy associated with the reaction to form the compound from its component elements. ![]()
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