X-ray Computed Microtomography Characterization of Ti6Al4V/CoCrMo Biomedical Composite Fabricated by Semi-solid Sintering

Mihalcea, Elena; Vergara–Hernández, Héctor Javier; Olmos, L.; Jiménez, O.; Arteaga, Dante; Salgado-López, J. M.

doi:10.1007/s10921-020-00742-w

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…In the previous investigation, 2D image analysis and processing methods were utilized to study the pore structure of ash sintering 22,23 . X‐ray computed microtomography (XCT), a 3D reconstruction technology based on actual geometrical structure, was widely applied to analyze the structure lately 24–34 . Hajizadeh et al 24 applied the method to analyze the pore structure based on the data from XCT.…”

Section: Introductionmentioning

confidence: 99%

“…22,23 X-ray computed microtomography (XCT), a 3D reconstruction technology based on actual geometrical structure, was widely applied to analyze the structure lately. [24][25][26][27][28][29][30][31][32][33][34] Hajizadeh et al 24 applied the method to analyze the pore structure based on the data from XCT. Ranut et al 25 and Bodla et al 26 analyzed the pore microstructure and evaluated the thermal conductivity for aluminum foam by high-resolution X-ray microtomography.…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigation of pore structure during high sodium coal ash sintering with and without calcium oxide additive through XCT technology

Fang

Wang

Luo

et al. 2022

Asia-Pacific J Chem Eng

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This article investigates the evolution of morphology and pore structure during sintering at 1200 C for a high sodium coal ash, with and without using a calcium oxide additive. The effect of different proportions of calcium oxide additive was studied. The ratios of height and area of samples were calculated, and representative sintering time points of morphological changes were captured. Meanwhile, frequencies of diameter, pore numbers, and porosities were obtained by processing images. The maximum ratio of height and area reached at 15 min, 4 min, and 10 min for the sintering process of coal ash sample without additive, with 5% and 10% CaO, proving that CaO accelerates the sintering process. In comparison, the maximum porosities were 52.4%, 39.5%, and 47.0% for sintering samples after 10 min, 6 min, and 40 min.Besides, X-ray diffraction analysis of the minerals of the condensed white matter was conducted.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental investigation of pore structure during high sodium coal ash sintering with and without calcium oxide additive through XCT technology

Fang

Wang

Luo

et al. 2022

Asia-Pacific J Chem Eng

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Experimental Investigation and X-Ray Computed Microtomography Simulation on Thermal Physical Properties of Foundation Materials after Molten Salt Leakage in the Storage Tank

Wang,

Zhou,

Luo

et al. 2023

J. Therm. Sci.

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Effect of CoCrMo Addition on Ti6Al4V/xCoCrMo Biomedical Composites Processed by Powder Metallurgy

Mihalcea

Olmos

Vergara–Hernández

et al. 2021

Metals

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A detailed experimental and numerical investigation was performed on a Ti6Al4V/xCoCrMo biomedical composite for bone implant applications. The aim was to understand the effect generated by the addition of different volume fractions of CoCrMo particles on a Ti6Al4V matrix composite processed by powder metallurgy. Distribution of CoCrMo particles inside a matrix was observed by computed microtomography. Three-dimensional image analysis allowed for the deduction that the mechanism that permitted percolation within the powder mixture was the cluster formation at 30 vol.% of CoCrMo and at a coordination number of Co–Co contacts of 2.8, which confirms existing models. Densification during powder compaction was driven by larger indentations at the Ti–Co contacts for lower quantities of CoCrMo than for those reaching percolation. Sintering was studied by dilatometry tests at 1130 °C, and results indicated that solid-state sintering generated the formation of a rigid skeleton. This endured the stress generated by the eutectic reaction liquid, which filled the interparticle porosity, resulting in relative densities above 90%. Microstructure was analyzed by SEM and X-ray diffraction, and results showed a Ti6Al4V matrix surrounded by a Ti2Co eutectic phase. In addition, the hardness of composites increased up to three times compared to the Ti6Al4V alloy. It was concluded that the best properties were obtained from 20 vol.% of CoCrMo.

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X-ray Computed Microtomography Characterization of Ti6Al4V/CoCrMo Biomedical Composite Fabricated by Semi-solid Sintering

Cited by 3 publications

References 33 publications

Experimental investigation of pore structure during high sodium coal ash sintering with and without calcium oxide additive through XCT technology

Experimental investigation of pore structure during high sodium coal ash sintering with and without calcium oxide additive through XCT technology

Experimental Investigation and X-Ray Computed Microtomography Simulation on Thermal Physical Properties of Foundation Materials after Molten Salt Leakage in the Storage Tank

Effect of CoCrMo Addition on Ti6Al4V/xCoCrMo Biomedical Composites Processed by Powder Metallurgy

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