The Use of Eutectic Fe-Si-B Alloy as a Phase Change Material in Thermal Energy Storage Systems

Jiao, Jianmeng; Grorud, Bettina; Sindland, Caroline; Safarian, Jafar; Tang, Kai; Sellevoll, Kathrine; Tangstad, Merete

doi:10.3390/ma12142312

Cited by 19 publications

(5 citation statements)

References 41 publications

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“…The suitable refractory materials should meet several requirements: it can be used at high temperatures up to 1300 • C; it should resist molten PCM corrosion after long-term thermal cycles; and it should not pollute molten PCM. Graphite is one of the promising refractory materials that has been investigated by our team [4][5][6][7]10]. With the long-term thermal cycle experiments, we observed that thin carbide layers were formed at the surface, and the penetration of Fe-26Si-9B melt into graphite was insignificant.…”

Section: Introductionmentioning

confidence: 93%

“…With the third element of Fe added to Si-B-based alloys, a new eutectic Fe-26Si-9B alloy was formed. In the report on the experimental results and theoretical calculations [4], the volume change was measured to be about −2.4% at its melting point of 1223 • C. The heat of fusion was calculated to be 1250 kWh/m 3 , which is a bit higher than that of pure Si. The thermal conductivity was estimated to be 30.6 W/(m•K) at 1100 • C, which is higher than those of most of the organic and inorganic PCMs [16,17].…”

Section: Introductionmentioning

confidence: 98%

“…It is thought that high-temperature PCMs have the capability to improve energy storage efficiency owing to their high stability, high thermal conductivity, and low cost [3]. Recently, silicon (Si)-based alloys have been investigated as a future high-temperature PCM [4][5][6][7][8][9][10][11][12][13]. Si has a high latent heat of 1230 kWh/m 3 at its melting point of 1414 • C. However, the high-volume expansion upon solidification (9.7%) [14] limits its application to industrialization.…”

Section: Introductionmentioning

confidence: 99%

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The Use of Fe-26Si-9B Alloy as Phase Change Material in Si3N4 Container

2022

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Fe-26Si-9B alloy was selected as a potential phase change material (PCM) to store energy at temperatures up to 1300 °C. A suitable refractory material is crucial to building a PCM container for Fe-26Si-9B alloy in thermal energy storage systems. The refractory material should have the ability to withstand corrosion from liquid Fe-26Si-9B alloy and should not pollute the alloy after long-term thermal cycles at high temperatures. In this work, Si3N4 was selected as a candidate refractory material. To investigate the interaction between Si3N4 and Fe-26Si-9B alloy, the wettability property of an Fe-26Si-9B/Si3N4 system was examined in a sessile drop furnace at temperatures up to 1350 °C. Moreover, Fe-26Si-9B alloy was subjected to 1–12 thermal cycles at temperatures between 1100 and 1300 °C, where the alloys were placed in Si3N4 crucibles in a resistance furnace under argon. According to the experiments, the equilibrium contact angle between the Fe-26Si-9B droplet and Si3N4 substrate was measured to be ~143°, which is non-wetting behavior. Microstructural analyses showed that FeSi, FeB, FeSiB3, and SiB6 were formed in the solidified Fe-26Si-9B alloy, in which FeSi + FeSiB3 constituted the eutectic structure. No nitride phases were introduced to the Fe-26Si-9B alloy, and no new interlayer was produced at the interface between the Fe-26Si-9B alloy and Si3N4 crucible after the thermal cycle experiments. In addition, the formed phases were stable with the increase in thermal cycles. All the results show that Si3N4 refractory material is suitable for Fe-26Si-9B alloy containers at high temperatures.

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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The Use of Fe-26Si-9B Alloy as Phase Change Material in Si3N4 Container

2022

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“…They are all essential materials for LHS-TES because they have been known to store up to between 5 and 14 times more heat per unit volume than SSMs such as water, masonry or rocks [23]. The determination of whether a PCM is suitable for each application is dependent on the range of temperature such material can handle [24]. Many TES applications use PCM as they are found suitable for their versatile thermal performance [25].…”

Section: Figure 3 Types Of Pcm For Tes [19] [20]mentioning

confidence: 99%

Succinct Review on State-of-art Carbon-based Phase Change Material for Solar Thermal Storage Applications

et al. 2020

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Radiation from the sun continually generates enormous solar energy reaching the atmosphere and then radiates back into the outer space over a while. The energy source is considered to be potential renewable thermal energies if effectively harnessed and stored. Thermal energy storage could be in either cold or heat form for later use for either cooling and heating purposes respectively; it can also be utilized for electricity production. The development of highly efficient and cost-effective heat storage materials has been an emerging school of thought for researches into smart methods of heat storage. The authors briefly review the state-of-art carbon-based composite phase change materials (PCM) that have been employed in applications that are related to thermal storage. Various types of recently developed carbon composites with improved thermal storage properties have been succinctly discussed. The technological implications of employing the identified materials in the thermal storage applications were also highlighted and discussed.

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“…Eutectic mixtures have wide industrial importance in many fields including alloys, electronics, refrigeration industry, energy storage, − greenhouse gas emission reduction, and chemicals purification. − Traditional eutectics in the refrigeration industry are inorganic materials (mixtures of salts) known for a long time. A historical application is related to handmade ice cream, whose more ancient citation is probably back in the fourth century A.D. as reported in the Indian poem Pancatantra .…”

Section: Introductionmentioning

confidence: 99%

PCA Analysis of In Situ X-ray Powder Diffraction and Imaging Data Shedding New Light on Solid-State Transformations: The Crystallization of Low Temperature Eutectic Mixtures

Lopresti

Mangolini

Conterosito

et al. 2023

Crystal Growth & Design

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Eutectic mixtures are usually studied by differential scanning calorimetry (DSC), able to identify the transition temperatures, possible hysteresis, and investigate the energetic features of transformations. However, DSC is not able to give compositional, structural, or morphological information. A new approach is proposed exploiting powder X-ray diffraction (XRPD) and imaging to overcome the issues posed to diffraction by the presence of an amorphous liquid phase. Principal component analysis (PCA) is applied blindly to in situ XRPD data from both solid and liquid phases in an approach called differential scanning diffraction (DSD), with PCA scores being the reaction coordinate of melting or crystallization steps. PCA was used in a similar way to analyze the imaging data in what was named differential scanning imaging (DSI). Exploiting this approach, the structural and morphological changes during phase transitions can be characterized by XRPD and imaging respectively, complementarily to the energetic effects probed by DSC. Melting and crystallization points can be identified together with the hysteresis between downward and upward temperature ramps, by the structural and morphological viewpoints. A three-component mixture (NaBr, KCl, and water), with wide industrial applications, was studied to describe the behavior around the eutectic composition and examine how small mixture changes can affect the transition temperature and the freezing/melting behaviors. The phase composition at the solid state was elucidated and a new phase of NaBr was identified and its lattice parameters were obtained by XRPD. DSD and DSI resulted complementary to traditional DSC data with many potential applications in solid state chemistry and materials science.

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The Use of Eutectic Fe-Si-B Alloy as a Phase Change Material in Thermal Energy Storage Systems

Cited by 19 publications

References 41 publications

The Use of Fe-26Si-9B Alloy as Phase Change Material in Si3N4 Container

The Use of Fe-26Si-9B Alloy as Phase Change Material in Si3N4 Container

Succinct Review on State-of-art Carbon-based Phase Change Material for Solar Thermal Storage Applications

PCA Analysis of In Situ X-ray Powder Diffraction and Imaging Data Shedding New Light on Solid-State Transformations: The Crystallization of Low Temperature Eutectic Mixtures

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