Diffusion behavior of implanted iron in fused silica glass

Wang, P.W.; Feng, Yiping; Roth, W. L.; Corbett, J. W.

doi:10.1016/0022-3093(88)90185-8

Cited by 12 publications

(4 citation statements)

References 13 publications

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“…Here, the RBS signal from the as-coated sample is shown in black and the signal from the annealed sample is shown in red. The diffusion coefficient for Ge was previously found to be ∼2 × 10 –16 cm 2 /s when Ge was ion-implanted into SiO 2 . − Based on this value for solid-state diffusion, one would expect the diffusion tail of Ge into the SiO 2 wafer to have a breadth of . However, the concentration of GeO 2 in this experiment decreased to ∼15 mol % and extended ∼400 nm into the substrate as shown by the concentration profiles in the inset of Figure b.…”

Section: Resultsmentioning

confidence: 57%

Additive Manufacturing of Optical Quality Germania–Silica Glasses

Sasan

Lange

Yee

et al. 2020

ACS Appl. Mater. Interfaces

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Direct ink writing (DIW) three-dimensional (3D) printing provides a revolutionary approach to fabricating components with gradients in material properties. Herein, we report a method for generating colloidal germania feedstock and germania–silica inks for the production of optical quality germania–silica (GeO2–SiO2) glasses by DIW, making available a new material composition for the development of multimaterial and functionally graded optical quality glasses and ceramics by additive manufacturing. Colloidal germania and silica particles are prepared by a base-catalyzed sol–gel method and converted to printable shear-thinning suspensions with desired viscoelastic properties for DIW. The volatile solvents are then evaporated, and the green bodies are calcined and sintered to produce transparent, crack-free glasses. Chemical and structural evolution of GeO2–SiO2 glasses is confirmed by nuclear magnetic resonance, X-ray diffraction, and Raman spectroscopy. UV–vis transmission and optical homogeneity measurements reveal comparable performance of the 3D printed GeO2–SiO2 glasses to glasses produced using conventional approaches and improved performance over 3D printed TiO2–SiO2 inks. Moreover, because GeO2–SiO2 inks are compatible with DIW technology, they offer exciting options for forming new materials with patterned compositions such as gradients in the refractive index that cannot be achieved with conventional manufacturing approaches.

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Section: Resultsmentioning

confidence: 57%

Additive Manufacturing of Optical Quality Germania–Silica Glasses

Sasan

Lange

Yee

et al. 2020

ACS Appl. Mater. Interfaces

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“…This effect has been referred to as Ôout diffusionÕ. It has been suggested that the shift in the implantation peak is due to an interaction of the implanted ions with oxygen [20]. Both oxygen and electrons can diffuse through the silica matrix at rates which are comparable to the diffusion rates of germanium which are reported below, and these can be expected to influence the motion of the germanium ions.…”

Section: Out Diffusionmentioning

confidence: 91%

“…For example, it has been reported that the concentration peak of implanted ions of gallium [16], bismuth [17], arsenic [18,19], and iron [20,21] shifts toward the surface during annealing. This effect has been referred to as Ôout diffusionÕ.…”

Section: Out Diffusionmentioning

confidence: 98%

Diffusion of germanium in silica glass

Minke

Jackson

2005

Journal of Non-Crystalline Solids

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“…At the intense oxidation temperature, the oxidation rate increases dramatically. This is due to the considerable increase in the diffusion rate at higher temperatures [21][22][23][24], resulting in a sharp increase in the oxidation rate. After the FOT, the oxidation reaction stops rapidly.…”

Section: Methodsmentioning

confidence: 99%

Effect of Oxidation Temperature on the Oxidation Process of Silicon-Containing Steel

Zhou

et al. 2016

Metals

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Abstract:The oxidation behavior of silicon-containing steel was studied by applying segmented heating routes similar to the atmosphere and heating process in an industrial reheating furnace. The oxidation tests were carried out on a simultaneous thermal analyzer at heating temperatures of 1150˝C-1300˝C. The morphologies of Fe 2 SiO 4 were observed by SEM, and the penetration depths of the Fe 2 SiO 4 layer at different oxidation temperatures were determined by using the Image-Pro Plus 6.0 software. The results show that at heating temperatures ě1235˝C, the oxidation rate and total oxidation mass gain have no relation with the heating temperature; the mass gain versus time follows a linear law after about 1164˝C (lower than the eutectic temperature of fayalite). In addition, the oxidation rate first decreases slowly and then drops from 1190˝C to 1210˝C during the isothermal holding stage. With the increase in temperature, the oxidation rate and mass gain also increase gradually; the relationship between the mass gain and time is close to a parabolic law. Moreover, at a heating temperature of 1150˝C, the oxidation rate decreases rapidly during the isothermal holding stage, and the mass gain versus time follows a parabolic law.

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Diffusion behavior of implanted iron in fused silica glass

Cited by 12 publications

References 13 publications

Additive Manufacturing of Optical Quality Germania–Silica Glasses

Additive Manufacturing of Optical Quality Germania–Silica Glasses

Diffusion of germanium in silica glass

Effect of Oxidation Temperature on the Oxidation Process of Silicon-Containing Steel

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