Synthesis and Characterization of Bulk, Vitreous Cadmium Germanium Arsenide

Johnson, Bradley R.; Riley, Brian J.; Sundaram, S. K.; Crum, Jarrod V.; Henager, Charles H.; Zhang, Yongfeng; Shutthanandan, V.; Seifert, Carolyn E.; Ginhoven, Renée M. Van; Chamberlin, Clyde E.; Rockett, Angus; Hebert, Damon; Aquino, Angel R.

doi:10.1111/j.1551-2916.2009.03001.x

Cited by 10 publications

(13 citation statements)

References 29 publications

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“…Five As–S chemistries of chalcogenide glasses were studied (As x S 100− x , where x = 30, 33, 36, 40, and 42), and were synthesized in the Non‐Oxide Materials Synthesis Laboratory (NOMSL) at the Pacific Northwest National Laboratory (PNNL) . All samples were processed by melting high‐purity elements (6N S from American Smelting and Refining Company (ASARCO), Tuson, AZ and 7N+ As from Alfa Aesar, Ward Hill, MA) in evacuated (10 −4 Pa or 10 −6 Torr) fused quartz ampoules while homogenizing in a Deltech rocking furnace (Deltech Inc., Denver, CO).…”

Section: Methodsmentioning

confidence: 99%

Gamma Radiation Effects on Physical, Optical, and Structural Properties of Binary As–S Glasses

et al. 2011

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Gamma radiation is known to induce changes in physical, optical, and structural properties in chalcogenide glasses, but previous research has focused on As2S3 and families of glasses containing Ge. For the first time, we present composition and dose dependent data on the As–S binary glass series. Binary AsxS100−x (x = 30, 33, 36, 40, and 42) glasses were irradiated with gamma radiation using a 60Co source at 2.8 Gy/s to accumulated doses of 1, 2, 3, and 4 MGy. The irradiated samples were characterized at each dose level for density, refractive index, X‐ray diffraction (XRD), and Raman spectrum. We report an initial increase in density followed by a decrease as a function of dose that contradicts the expected compositional dependence of molar volume of these glasses. This unusual behavior is explained based on microvoid formation and nanoscale phase‐separation induced by the irradiation. XRD, Raman, and electron spin resonance data provide supporting evidence, underscoring the importance of optimally‐ or overly constrained structures for stability under irradiation.

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Section: Methodsmentioning

confidence: 99%

Gamma Radiation Effects on Physical, Optical, and Structural Properties of Binary As–S Glasses

et al. 2011

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“…The measured pattern contained some preferred orientation leading to some noticeable intensity in the difference spectrum. melting point (T b 1000°C) will allow quenching without as much thermal gradient, allowing intact ingots even when water quenching as was obtainable with the chalcopyrite system Cd-Ge-As [68].…”

Section: Discussionmentioning

confidence: 98%

Infrared-transparent glass ceramics: An exploratory study

McCloy

Riley

Pierce

2015

Journal of Non-Crystalline Solids

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a b s t r a c tIn this work, the vision and need for a fully ceramized long-wave infrared (LWIR)-transmitting glass ceramic have been articulated. Three sulfide systems were explored including two with La 2 S 3 in hopes of imparting strong bonds from this refractory sulfide, and two containing GeS 2 in hopes of widening the glass-forming region. Attempts were made to produce glasses in the Ga 2 S 3 -La 2 S 3 -(ZnS,CaS) system, the GeS 2 -La 2 S 3 system, and the GeS 2 -Ga 2 S 3 -CdS system. Water quenching produced glasses of Ga 2 S 3 -La 2 S 3 -CaS and GeS 2 -Ga 2 S 3 -CdS. Microstructural and thermal analyses were used to explore nucleation and growth in these systems and infrared transmission and mechanical hardness showed potential for LWIR window use. The GeS 2 -Ga 2 S 3 -CdS system showed good LWIR transmission and pre-crystallized hardness superior to chemical vapor deposited ZnS. The Ga 2 S 3 -La 2 S 3 glasses did not appear to be viable candidates at this time due to a small temperature window between crystallization and glass transition temperatures and problems with oxygen contamination in the La 2 S 3 source. Suggestions are made for two alternative methods for producing fully ceramized LWIR-transmitting glass ceramics.

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“…Five As-S chemistries of chalcogenide glass were studied (As x S 100-x , where x = 30, 33, 36, 40, and 42) and were synthesized in the NonOxide Materials Synthesis Laboratory (NOMSL) at the Pacific Northwest National Laboratory (PNNL) [16,17]. All samples were processed by melting high-purity elements (99.999 + % sulfur from ASARCO and 99.99999% arsenic from Alfa Aesar) in evacuated (10 − 4 Pa or 10 − 6 Torr) fused quartz ampoules while homogenizing in a Deltech rocking furnace (Deltech, Inc., Denver, CO).…”

Section: Methodsmentioning

confidence: 99%