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Boron nitride tetragonal

Boron nitride is a voluminous white powder which under the microscope shows no sign of crystallization. The sp. gr. depends on the temp, to which it has been ignited. F. M. Jager and H. G. K. Westenbrink said that the X-radiogram shows that the space-lattice is either cubic with a=7 44 A., or tetragonal with o=4 295 A., and c—5 176 A., or a c= 1 1 2052. In the first case, the elementary cell contains 20 molecules, which is improbable and in the second case, 4 or 5... [Pg.109]

See other pages where Boron nitride tetragonal is mentioned: [Pg.223]    [Pg.1155]    [Pg.250]    [Pg.251]    [Pg.921]    [Pg.461]    [Pg.300]    [Pg.332]    [Pg.379]   
See also in sourсe #XX -- [ Pg.3 , Pg.3 , Pg.3 , Pg.5 , Pg.17 ]

See also in sourсe #XX -- [ Pg.3 , Pg.3 , Pg.3 , Pg.5 , Pg.17 , Pg.18 ]



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