Looking for finding a relation among Elastic modulus of silver and grain size, temperature, grain size and percentage of porosity. I am looking at temperature range of 523K to 823K and grain size of a few hundreds of nanometer up to a few microns...
Temperature-Dependent Optical Properties of Single Crystalline and Polycrystalline Silver Thin Films
By Harsha Reddy , Urcan Guler, Krishnakali Chaudhuri, Aveek Dutta, Alexander V. Kildishev, Vladimir M. Shalaev, and Alexandra Boltasseva
Silver holds a unique place in plasmonics compared to other noble metals owing to its low losses in the visible and near-IR wavelength ranges. With a growing interest in local heating and high temperature applications of plasmonics, it is becoming critical to characterize the dielectric function of nanometer-scale thin silver films at higher temperatures, especially near the breakdown temperature, which depends on the film thickness and crystallinity. So far, such a comprehensive study has been missing. Here we report the in situ high temperature ellipsometry measurements of ultrasmooth and epitaxial quality crystalline silver films, along with electron beam evaporated polycrystalline silver films at temperatures up to 700 °C, in the wavelength range of 330–2000 nm.
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http://pubs.acs.org/doi/abs/10.1021/acsphotonics.6b00886?journalCode=apchd5
Thanks Hamed.
I know grain size doesn't have direct affect on young modulus but I found some works that the ratio of grain and pore diameter can have effect on elastic modulus. Also I should have mentioned sintering temperature in the question instead of effect of temperature itself. I am wondering if there is any decent work on relation of elastic modulus, porosity and sintering temperature. I know traditionally the sintering temperature should reduce the porosity percentage in a structure. But how would the shape of pore would affect the elastic modulus...
Yeah you are right. The point is the processing technique is 3D printing and porosity is all over the structure. The thing is that by increasing sintering temperature the effective elastic modulus which comes from experiment is reducing while the porosity percentage is reducing at the same time.
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