Structure of Glasses in the Pseudobinary System Ga2Se3–GeSe2: Violation of Chemical Order and 8-N Coordination Rule

2013 ◽  
Vol 117 (51) ◽  
pp. 16594-16601 ◽  
Author(s):  
A. W. Mao ◽  
B. G. Aitken ◽  
R. E. Youngman ◽  
D. C. Kaseman ◽  
S. Sen

2011 ◽  
Vol 35 (1) ◽  
pp. 67-73
Author(s):  
S. Lukić-Petrović ◽  
M. Vučkovac ◽  
F. Skuban ◽  
M. Dimitrievska ◽  
I. Videnović ◽  
...  

Thermomechanical study of non-crystalline chalcogenides in the As-S-Cd systemThe work analyzes the thermomechanical behavior of glasses of the pseudobinary system (As2S3)100-x(CdS)x, consisting of variable ratios of the classical amorphous semiconducting compound As2S3and CdS molecule, which is used in manufacturing of photoresistors sensitive to visible and near infrared light. The study encompassed the determination of the thermal coefficients of linear expansion in solid and visco-plastic phases, softening temperature, and the temperature of the beginning of deformation. The results show that the values of these parameters increase with increase in the share of CdS in the initial matrix, as well as the reduction of instructural strength of the correlation matrix of glass. The analytical forms of dependence of significant physical values αg,Tg,Tw, as a function of CdS content in the structure of glasses were fitted to the measured data. Based on the obtained coefficients of linear expansion, the Poissons coefficient was also calculated.





1985 ◽  
Vol 46 (C8) ◽  
pp. C8-217-C8-221 ◽  
Author(s):  
M. Maurer ◽  
A. Mehdaoui ◽  
J. M. Friedt




1988 ◽  
Vol 96 (1114) ◽  
pp. 634-638 ◽  
Author(s):  
Jiro FUKUNAGA ◽  
Ritsuko BANDO ◽  
Rikuo OTA ◽  
Naojiro YOSHIDA


ChemInform ◽  
2004 ◽  
Vol 35 (29) ◽  
Author(s):  
P. Schmidt ◽  
H. Dao Quoc ◽  
H. Oppermann ◽  
M. Ruck ◽  
P. S. Berdonosov ◽  
...  
Keyword(s):  


1998 ◽  
Vol 58 (16) ◽  
pp. 10357-10362 ◽  
Author(s):  
Daniele Mura ◽  
Luciano Colombo ◽  
Rita Bertoncini ◽  
Gianni Mula
Keyword(s):  


1996 ◽  
Vol 437 ◽  
Author(s):  
Gene Ice ◽  
Cullie Sparks ◽  
J. Lee Robertson ◽  
J. Ernest Epperson ◽  
Xiaogang Jiang

AbstractAtom size differences induce static displacements from an average alloy lattice and play an important role in controlling alloy phase stability and properties. The details of this role however, are difficult to study; chemical order and displacements are strongly interrelated and static displacements are hard to measure. Diffuse x-ray scattering measurements with tunable-synchrotron radiation can now measure element-specific static displacements with an accuracy of ± 0.1 pm and can simultaneously measure local chemical order out to 20 shells or more. Ideal alloys for diffuse scattering analysis with synchrotron radiation, are those that have previously been the most intractable: alloys with small Z contrast, alloys with only local order and alloys with small size differences. The combination of precise characterization of local chemical order and precise measurement of static displacement provides new information that challenges existing alloy models. We report on an ongoing systematic study of static displacements in the Fe/Ni/Cr alloys and compare the observed static displacements to the static displacements predicted by current theories. The availability of more brilliant 3rd generation hard x-ray sources will greatly enhance these measurements.



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