Long term aging of Selenide glasses: Evidence of sub-Tg endotherms and pre-Tg exotherms (2009)
Chen, Ping, Boolchand, P., Georgiev, D. G.
Long term aging is studied on several families of chalcogenide glasses including the Ge-Se, As-Se, Ge-P-Se and Ge-As-Se systems. Special attention is given to the As-Se binary, a system that displays...
MOLECULAR STRUCTURE AND QUENCHING OF PHOTODARKENING IN As2Se3:Snx AMORPHOUS FILMS (2008)
Photodarkening relaxation under light exposure of a-As2Se3 amorphous films and doped with 0.5-5.0 at. % Sn were studied for their dependence on the concentration of impurities and thermal treatment....
Chen, Ping, Holbrook, Chad, Boolchand, P., Georgiev, D. G., Jackson, K. A., Micoulaut, M.
The structure of binary As_xS_{1-x} glasses is elucidated using modulated-DSC, Raman scattering, IR reflectance and molar volume experiments over a wide range (8%
Aging, Fragility and Reversibility Window in Bulk Alloy Glasses (2007)
Chakravarty, S., Georgiev, D. G., Boolchand, P., Micoulaut, M.
Non-reversing relaxation enthalpies (DHnr) at glass transitions Tg(x) in the PxGexSe1-2x ternary display wide, sharp and deep global minima (~ 0) in the 0.09 < x < 0.145 range, within which Tgs...
Performance of laser bonded glass/polyimide microjoints in cerebrospinal fluid (2007)
Mian, A., Newaz, G., Georgiev, D.G., Rahman, N., Vendra, L., Auner, G., ...
In this paper, laser bonded microjoints between glass and polyimide is considered to examine their potential applicability in encapsulating neural implants. To facilitate bonding between polyimide...
Newaz, G., Mian, A., Sultana, T., Mahmood, T., Georgiev, D.G., Auner, G., ...
Assessment of neural biocompatibility requires that materials be tested with exposure in neural fluids. Laser bonded microjoint samples made from Ti coated glass substrate and polyimide film (GPI)...
Newaz, G., Georgiev, D. G., Mian, A., Auner, G., Herfurth, H., Witte, R.
Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for applications as encapsulation of miniature implant biomedical devices. In this...
Georgiev, D.G., Sultana, T., Mian, A., Auner, G., Herfurth, H., Witte, R., ...
Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for application as encapsulation of miniature implantable biomedical devices. In this...
Laser bonded microjoints between titanium and polyimide for applications in medical implants (2005)
Mian, A., Newaz, G., Vendra, L., Rahman, N., Georgiev, D.G., Auner, G., ...
Bioencapsulation of medical implant devices, and neural implant devices in particular, requires development of reliable hermetic joints between packaging materials that are often dissimilar....
An XPS study of laser-fabricated polyimide/titanium interfaces (2004)
Georgiev, D.G., Baird, R.J., Newaz, G., Auner, G., Witte, R., Herfurth, H.
Intrinsic Nanoscale Phase Seperation of bulk As2S3 Glass (2003)
Georgiev, D. G., Boolchand, P., Jackson, K. A.
Raman scattering on bulk AsxS1-x glasses showes that vibrational modes of As4S4 monomer first appear near x=0.38, and their concentration increases precipitously with increasing x, suggesting that...
The Intermediate Phase in Ternary GexAsxSe1-2x Glasses (2003)
Qu, Tao, Georgiev, D. G., Boolchand, P., Micoulaut, M.
Melt-quenched AsxGexSe1-2x glasses over the composition range, 0 < x < 0.26, are examined in Raman scattering, T-modulated Differential Scanning Calorimetry (MDSC), and 119Sn Mossbauer spectroscopy...
Aging, Fragility and Reversibility Window in Bulk Alloy Glasses (2003)
Chakravarty, S., Georgiev, D. G., Boolchand, P., Micoulaut, M.
Non-reversing relaxation enthalpies (DHnr) at glass transitions Tg(x) in the PxGexSe1-2x ternary display a wide, sharp and deep global minimum (~0) in the 0.09 < x < 0.145 range, within which Tg...
Tao Qu, D. G. Georgiev, P. Boolch, M. Micoulaut
Melt-quenched AsxGexSe1-2x glasses over the composition range, 0 < x < 0.26, are examined in Raman scattering, T-modulated Differential Scanning Calorimetry (MDSC), and 119 Sn Mossbauer...