Application of k-Means Clustering to Material Research: Measurement of Layer Thickness and Contact Angle

Lee, Dongjun; Cho, Yong-Min; Kim, Jun‐Hyun; Hwang, In-Sun; Chung, Yoonsun; Kang, Youn-Bae

doi:10.1007/s12540-023-01411-z

Cited by 6 publications

(9 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fortunately, the specific surface area of SiC‐coated graphite was greatly reduced to 1.37 m 2 g −1 after the PCS treatment, suggesting the importance of the SiC post‐processing. Ceramic coatings generally lead to enhancing the high‐temperature stability of carbon materials in the air atmosphere due to their high melting point, outstanding thermal shock stability, and excellent antioxidant properties 31 . Therefore, thermogravimetry (TG) was operated under an air condition to investigate the high‐temperature resistance of coated samples.…”

Section: Resultsmentioning

confidence: 99%

Coating dense silicon carbide layer on artificial graphites to achieve synergistically enhanced thermal conductivity and electronic insulation of polymer composites

Huang

Tian

Kong

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

As a potential thermal conductive filler, spherical graphite (SG) has high thermal conductivity, low density, and a good spherical shape structure.However, the poor electrical insulation of SG will seriously limit its application in highly integrated electronic device packaging. Herein, through a simple liquid-solid chemical reaction, the surface of the SG particle is firmly covered by a uniform silicon carbide (SiC) ceramic coating. Subsequently, a polycarbo-

show abstract

Section: Resultsmentioning

confidence: 99%

Coating dense silicon carbide layer on artificial graphites to achieve synergistically enhanced thermal conductivity and electronic insulation of polymer composites

Huang

Tian

Kong

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The sample preparation and methods were carefully selected. The present authors conducted well-established Differential Scanning Calorimetry (DSC) [48,49] in combination with the less common electromagnetic levitation technique [50] and contact angle measurement [51] . This section summarizes the sample preparation and experimental approaches used to evaluate the miscibility gap.…”

Section: Methodsmentioning

confidence: 99%

“…Min et al [51] measured the contact angle change upon cooling of Bi-Cu-Sn liquid alloys using the constrained drop method and showed that this technique was capable of detecting the binodal temperature of the alloys that separated into two liquid phases. They confirmed that the contact angle was sensitive to the surface tension of the droplet, which changed significantly upon the two-phase separation.…”

Section: Contact Angle Measurementmentioning

confidence: 99%

Thermodynamic modeling of the Fe-Sn system including an experimental re-assessment of the liquid miscibility gap

Park¹,

Bernhard²,

Presoly³

et al. 2023

J Mater Inf

View full text Add to dashboard Cite

The usage of low-grade ferrous scrap has increased over decades to decrease CO2 emissions and to produce steel products at a low cost. A serious problem in melting post-consumer scrap material is the accumulation of tramp elements, e.g., Cu and Sn, in the liquid steel. These tramp elements are difficult to remove during conventional steelmaking processes. Sn is considered as one of the most harmful tramp elements because, together with Cu, it sometimes induces the liquid metal embrittlement in high-temperature ferrous processing, e.g., continuous casting and hot rolling. Furthermore, the chemical interaction between Fe and Sn plays an important role in the Sn smelting process. The raw material used in the Sn smelting process is SnO2 (cassiterite), in which Fe3O4 is a gangue in the Sn ore. In the process, the reduction of Fe3O4 is unavoidable, which results in forming a Fe-Sn alloy (hardhead). The recirculation of the hardhead decreases the furnace capacity and increases the energy consumption in the smelting. The need to efficiently recover Sn from secondary resources is therefore inevitable. The CALculation of PHAse Diagrams (CALPHAD) approach helps to predict the equilibrium state of the multicomponent system. Previously reported studies of the Fe-Sn system show inconsistencies in the calculations and the experimental results. Mainly the miscibility gap in the liquid phase was under debate, as experimental data of the phase boundary are scattered. Experimental study and re-optimization of model parameters were carried out with emphasis on the correct shape of the miscibility gap. Three different experimental techniques were employed: differential scanning calorimetry, electromagnetic levitation, and contact angle measurement. The present thermodynamic model has higher accuracy in predicting the solubility of Sn in the body-centered cubic (bcc), compared to previous assessments. This is achieved by re-evaluating the Gibbs energies of the FeSn and FeSn2 compounds and the peritectic reaction related to Fe5Sn3. Also, the inconsistencies related to the miscibility gap around XSn = 0.31-0.81 were resolved. The database developed in the present study can contribute to the development of a large CALPHAD database containing tramp elements.

show abstract

“…Refineries that report tellurium content typically show less than 5 wt % of tellurium with locational anomalies up to 22 wt %. [ 12 , 15 , 16 ] Recovery methods of tellurium from slimes range from volatilization to electrochemical techniques, but is plagued by the difficulty of separating tellurium and selenium. [ 12 , 15 , 17 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 12 , 15 , 16 ] Recovery methods of tellurium from slimes range from volatilization to electrochemical techniques, but is plagued by the difficulty of separating tellurium and selenium. [ 12 , 15 , 17 ]…”

Section: Introductionmentioning

confidence: 99%

Separation of Tellurium from Metal Chalcogenides through Mild Anhydrous Chlorination

Uible

Kieser

Bart

2022

Chemistry A European J

View full text Add to dashboard Cite

The separation of tellurium from cadmium telluride is examined using a unique combination of mild, anhydrous chlorination and complexation of the subsequent tellurium tetrachloride with 3,5-di-tert-butylcatecholate ligands (dtbc). The resulting tellurium complex, Te(dtbc) 2 , is isolated in moderate yield and features a 10 3 to 10 4 reduction in cadmium content, as provided by XRF and ICP-MS analysis. Similar results were obtained from zinc telluride. A significant separation between Te, Se, and S was observed after treating a complex mixture of metal chalcogenides with this protocol. These three tunable steps can be applied for future applications of CdTe photovoltaic waste.

show abstract

Application of k-Means Clustering to Material Research: Measurement of Layer Thickness and Contact Angle

Cited by 6 publications

References 37 publications

Coating dense silicon carbide layer on artificial graphites to achieve synergistically enhanced thermal conductivity and electronic insulation of polymer composites

Coating dense silicon carbide layer on artificial graphites to achieve synergistically enhanced thermal conductivity and electronic insulation of polymer composites

Thermodynamic modeling of the Fe-Sn system including an experimental re-assessment of the liquid miscibility gap

Separation of Tellurium from Metal Chalcogenides through Mild Anhydrous Chlorination

Contact Info

Product

Resources

About