scholarly journals Sun glass lenses made of ground and polished plate glass thereafter thermally curved

1949 ◽  
Author(s):  
1920 ◽  
Vol 1 (1supp) ◽  
pp. 23-23 ◽  
Author(s):  
K. A. Rice
Keyword(s):  

1960 ◽  
Vol 17 (12) ◽  
pp. 658-658
Author(s):  
E. Brüche
Keyword(s):  

Author(s):  
J. Cooper ◽  
O. Popoola ◽  
W. M. Kriven

Nickel sulfide inclusions have been implicated in the spontaneous fracture of large windows of tempered plate glass. Two alternative explanations for the fracture-initiating behaviour of these inclusions have been proposed: (1) the volume increase which accompanies the α to β phase transformation in stoichiometric NiS, and (2) the thermal expansion mismatch between the nickel sulfide phases and the glass matrix. The microstructure and microchemistry of the small inclusions (80 to 250 μm spheres), needed to determine the cause of fracture, have not been well characterized hitherto. The aim of this communication is to report a detailed TEM and EDS study of the inclusions.


1980 ◽  
Vol 37 (7) ◽  
pp. 329-331
Author(s):  
M. N. Medvedev ◽  
B. D. Egorov ◽  
M. A. Zezin ◽  
V. P. Lobanov
Keyword(s):  

1962 ◽  
Vol 19 (1) ◽  
pp. 48-49
Author(s):  
H. Goerk
Keyword(s):  

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