Phase equilibria in the Al-Si-C system

Oden, L.L.; McCune, R. A.

doi:10.1007/bf02647073

Cited by 130 publications

(66 citation statements)

References 7 publications

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“…The present work shows good agreement with the works of Yanaba et al, 4) Hall 5) and Ottem,6) while poor agreement is seen with the results of Durand and Duby; 7) Oden and McCune; 8) and Scace and Slack. 9) The work of Durand and Duby is a review article based on the data of Kleykamp and Schumacher; 10) Hall;5) and Dash.…”

Section: Temperature Dependencysupporting

confidence: 85%

Time and Temperature Dependence of the Solubility of Carbon in Liquid Silicon Equilibrated with Silicon Carbide and Its Dependence on Boron Levels

Dalaker

Tangstad

2009

Mater. Trans.

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The solubility of carbon in liquid silicon equilibrated with silicon carbide has been studied in the temperature region 1414-1559 C. High purity silicon was melted in graphite crucibles under Ar atmosphere with various boron additions. The equilibrium was observed to be established within minutes, after which no evolution with time could be observed. The addition of boron to the system was found to increase the carbon solubility, and an equation was derived describing the solubility as a function of both temperature and boron content. The solubility of carbon in pure liquid silicon was determined to be 65 ppm mass at the melting point of silicon. Expressions for the dissolution energy of carbon and the B-C interaction coefficient were also derived.

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Section: Temperature Dependencysupporting

confidence: 85%

Time and Temperature Dependence of the Solubility of Carbon in Liquid Silicon Equilibrated with Silicon Carbide and Its Dependence on Boron Levels

Dalaker

Tangstad

2009

Mater. Trans.

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“…It has been pointed out that the solubility data reported by Obinata and Komatsu [13] and by Dorward [14] seem too high by one or two orders of magnitude. Recently, Simensen [15] remeasured the solubility from 960 to 1000 °C and found that it changes from 6 ppm to 12.5 ppm accordingly, which agrees very well with the extrapolation from the data of Oden and McCune [12] at higher temperature. As a consequence, these data [15] together with all others [8][9][10][11][12] at higher temperatures were used in the present work in order to evaluate the properties of the liquid phase.…”

Section: Experimental Information and Parameter Evaluationsupporting

confidence: 78%

“…The solubility of carbon in liquid A1 has been measured many times and most results [8][9][10][11][12] are essentially consistent with each other in the temperature range 1600-2600 °C. However, experimental measurements at lower temperatures show a large discrepancy.…”

Section: Experimental Information and Parameter Evaluationmentioning

confidence: 68%

Solubility of carbon in liquid Al and stability of Al4C3

Qiu

Metselaar

1994

Journal of Alloys and Compounds

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Using thermodynamic models the properties of the Al-C liquid phase have been evaluated from experimental information on the carbon solubility in liquid Al. After slight modification of the description of A14C3 presented by Gluschko and Gurvitch [1], the solubility has been described very well from 950 to 2500 °C with a regular solution model for the liquid phase. Stability of A14C3 was examined through thermodynamic calculations under various conditions. It has been shown that the description of A14C3 can account very well for most thermochemical measurements in a wide temperature range.

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“…According to the previous study [33], the Al 4 SiC 4 can be formed by the solid reaction between SiC and Al 4 C 3 (Eq. (8)):…”

Section: Reaction Mechanismmentioning

confidence: 99%

Synthesis of Al4SiC4 powders via carbothermic reduction: Reaction and grain growth mechanisms

et al. 2017

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Abstract:Highly pure Al 4 SiC 4 powders were prepared by carbothermic reduction at 2173 K using Al 2 O 3 , SiO 2 , and graphite as raw materials. The obtained Al 4 SiC 4 powders owned hexagonal plate-like grains with a diameter of about 200-300 μm and a thickness of about 2-6 μm. Based on the experimental results, the reaction of Al 4 SiC 4 formation and grain evolution mechanisms were determined from thermodynamic and first-principles calculations. The results indicated that the synthesis of Al 4 SiC 4 by the carbothermic reduction consisted of two parts, i.e., solid-solid reactions initially followed by complex gas-solid and gas-gas reactions. The grain growth mechanism of Al 4 SiC 4 featured a two-dimensional nucleation and growth mechanism. The gas phases formed during the sintering process favored the preferential grain growth of (0010) and (1 10) planes resulting in formation of hexagonal plate-like Al 4 SiC 4 grains.

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Phase equilibria in the Al-Si-C system

Cited by 130 publications

References 7 publications

Time and Temperature Dependence of the Solubility of Carbon in Liquid Silicon Equilibrated with Silicon Carbide and Its Dependence on Boron Levels

Time and Temperature Dependence of the Solubility of Carbon in Liquid Silicon Equilibrated with Silicon Carbide and Its Dependence on Boron Levels

Solubility of carbon in liquid Al and stability of Al4C3

Synthesis of Al4SiC4 powders via carbothermic reduction: Reaction and grain growth mechanisms

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