Thermochemistry of the Ni-Hf system—Intermetallic phases

Bencze, L.; Hilpert, K.

doi:10.1007/bf02595449

Cited by 23 publications

(19 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that directsynthesis high-temperature calorimetry was used to determine the formation enthalpies of HfNi and Hf 2 Ni 7 intermetallides in [9], five hafnium nickelides in [4], and hafnium mononickelide in [11]. The Knudsen method and mass spectrometry were used to determine the enthalpies of nine compounds in [10]. There is no full agreement between Δ f H of nickelides as they have been determined with both direct and indirect methods and are complex test samples.…”

Section: Resultsmentioning

confidence: 99%

“…The results have been compared ( Fig. 2) with the known formation enthalpies of melts [3][4][5] and intermetallides [4,[9][10][11].…”

Section: Resultsmentioning

confidence: 99%

“…The paper [10] determined Gibbs energies and formation entropies of nickelides and the paper [12] Gibbs energies for formation of nickelides at 1418 K (Table 3). It is shown that the Gibbs energies for the formation of Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The formation enthalpies of Ni-Hf intermetallides [4,[9][10][11] are summarized in Table 2. Note that directsynthesis high-temperature calorimetry was used to determine the formation enthalpies of HfNi and Hf 2 Ni 7 intermetallides in [9], five hafnium nickelides in [4], and hafnium mononickelide in [11].…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Thermodynamic properties of Ni–Hf melts

Судавцова

Podoprigora

Shevchenko

2010

Powder Metall Met Ceram

View full text Add to dashboard Cite

541.122Isoperibolic calorimetry is used to determine the integral and partial mixing enthalpies of Ni-Hf melts at 1770 ± 5 K. It is established that Ni-Hf melts form with release of a great amount of heat.Temperature dependence of mixing enthalpies for binary Ni-Hf melts is established. Activities of the melt components are determined from coordinates of the liquidus lines in the phase diagram of this system. The calculated and experimental activities of the Ni-Hf melt components agree well. These data and the mixing enthalpies are used to calculate the Gibbs energies and mixing entropies of NiHf melts. It is shown that they are negative and their absolute value is high.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The results have been compared ( Fig. 2) with the known formation enthalpies of melts [3][4][5] and intermetallides [4,[9][10][11].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Thermodynamic properties of Ni–Hf melts

Судавцова

Podoprigora

Shevchenko

2010

Powder Metall Met Ceram

View full text Add to dashboard Cite

show abstract

“…[59]). Samples compositions are chosen depending on phase diagram and usually are composed of two (binaries) or three (ternaries) phases which are checked by the XRD phase analysis.…”

Section: Thermodynamic Properties Of Condensed Phasesmentioning

confidence: 99%

Twenty Years of Knudsen Effusion Mass Spectrometry: Studies Performed in the Period 1990-2010

Miller

Armatys²

2013

TOTHERJ

View full text Add to dashboard Cite

Investigations carried out by Knudsen effusion mass spectrometry on metals, alloys, oxides, and fullerene systems in the period 1990-2010 are reviewed in the present paper. 362 original papers were published in this period by ca. 45 research groups thereby showing still large activity in this unique area. The fundamentals and recent developments of the method are briefly reported. Data to the systems studied, temperature ranges, vapour species identified in the equilibrium vapours and thermodynamic properties obtained in the study are reported. Important features of these studies are briefly discussed as well.Most of the vaporization studies by Knudsen effusion mass spectrometry carried out on alloys, oxides and fullerenes aimed at the determination of thermodynamic data of gaseous species and condensed phases. Many of the studied materials are of practical importance for modern technologies. The investigations should give information on thermal stability, volatility under different conditions (temperature, oxygen partial pressure, and gaseous impurities), oxidation resistance, reactivity etc.

show abstract

Vapor pressure methods: A source of experimental thermodynamic data

Ipser

1998

Ber Bunsenges Phys Chem

View full text Add to dashboard Cite

An overview is given of the vapor pressure methods which are used for the determination of partial thermodynamic quantities. The methods are divided into four groups: static methods (pressure gauges, atomic absorption, and others); dynamic methods (boiling point method, transpiration method); effusion methods (Langmuir method, different variants of the Knudsen method); equilibration methods (equilibration with gas mixtures, isopiestic method, dew point method). The characteristics of each group are discussed shortly, and some examples of application are given from the recent literature.

show abstract

Thermochemistry of the Ni-Hf system—Intermetallic phases

Cited by 23 publications

References 9 publications

Thermodynamic properties of Ni–Hf melts

Thermodynamic properties of Ni–Hf melts

Twenty Years of Knudsen Effusion Mass Spectrometry: Studies Performed in the Period 1990-2010

Vapor pressure methods: A source of experimental thermodynamic data

Contact Info

Product

Resources

About