Fabrication of porous material for micro component application by direct X-ray lithography and sintering

Tirta, Andy; Baek, Eung Ryul; Chang, Soo Y.; Kim, Jong Hyun

doi:10.1016/j.mee.2012.05.016

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…Usually, the solvent is applied to obtain the same viscosity parameter. As the viscosity is a physical-chemical parameter directly related to the molecular composition [34], this difference can be initially interpreted as evidence of differences in the composition of the photo resin solutions. Thus, a difference in the solvent content in the same type of photoresist means that the molecular structures are slightly different.…”

Section: Tga Analysismentioning

confidence: 99%

Chemical and Molecular Variations in Commercial Epoxide Photoresists for X-ray Lithography

et al. 2018

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Section: Tga Analysismentioning

confidence: 99%

Chemical and Molecular Variations in Commercial Epoxide Photoresists for X-ray Lithography

et al. 2018

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“…Some earlier investigations focused on solving the mismatch stiffness between metallic implants and human bones [6]. Therefore, there is a need to develop porous materials by using different techniques showing that the stiffness of Ti and its alloys can be reduced to close to that of human bones [7][8][9][10]. Nevertheless, it is worth noting that bones have anisotropic mechanical properties and that stiffness will change depending on the direction of analysis in the structure [11,12].…”

Section: Introductionmentioning

confidence: 99%

Processing and Characterization of Bilayer Materials by Solid State Sintering for Orthopedic Applications

Téllez-Martínez

Olmos

Solorio-García

et al. 2021

Metals

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A new processing route is proposed to produce graded porous materials by placing particles of Ti6Al4V with different sizes in different configurations to obtain bilayer samples that can be used as bone implants. The sintering behavior is studied by dilatometry and the effect of the layers’ configuration is established. To determine pore features, SEM and computed microtomography were used. Permeability is evaluated by numerical simulations in the 3D real microstructures and the mechanical properties are evaluated by compression tests. The results show that a graded porosity is obtained as a function of the size of the particle used. The mechanical anisotropy due to the pore size distribution and the sintering kinetics, can be changed by the particle layer arrangements. The Young modulus and yield stress depend on the relative density of the samples and can be roughly predicted by a power law, considering the layers’ configuration on the compression behavior. Permeability is intimately related to the median pore size that leads to anisotropy due to the layers’ configuration with smaller and coarser particles. It is concluded that the proposed processing route can produce materials with specific and graded characteristics, with the radial configuration being the most promising for biomedical applications.

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“…The X-ray fluorescence (XRF) analysis technique has been widely applied, such as in the field of biology, petrochemical, materials, food and so on [1][2][3][4][5][6][7][8][9][10][11] . Detection efficiency is obtained through efficiency calibration curves in general cases, which is drawn by standard samples.…”

Section: Introductionmentioning

confidence: 99%

Impacts on the Ratio of Peak to Total and Peak to Source for Si-PIN Detector Through the Monte Carlo Method in XRF Analysis

Hefan-LIU¹,

Ye-DENG²,

Xiang-HU³

et al. 2018

dtetr

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This basic study investigates the ratio of peak to total (ܴ) and peak to source ‫)ݏߟ(‬ for Si-PIN detectors in X-ray fluorescence (XRF) analysis, with emphasis on analysis the parameters for ܴ and ‫ݏߟ‬ using the Monte Carlo method. Many XRF system models have been simulated using the Monte Carlo Neutron-Particle Transport Code MCNP5. Various parameters are set to calculate the detection efficiency in those models, such as the desired X-ray collection angle, thickness, density, moisture content, X-ray angles, geometric distance, and so on. These parameters can impact ܴ and ‫ݏߟ‬ in the exponential form to some extent. This study provides a convenient and reliable method for the passive calibration of XRF measurements.

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Fabrication of porous material for micro component application by direct X-ray lithography and sintering

Cited by 7 publications

References 9 publications

Chemical and Molecular Variations in Commercial Epoxide Photoresists for X-ray Lithography

Chemical and Molecular Variations in Commercial Epoxide Photoresists for X-ray Lithography

Processing and Characterization of Bilayer Materials by Solid State Sintering for Orthopedic Applications

Impacts on the Ratio of Peak to Total and Peak to Source for Si-PIN Detector Through the Monte Carlo Method in XRF Analysis

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