C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 3/32 (2006.01) C03C 3/04 (2006.01) C03C 3/11 (2006.01) C03C 3/14 (2006.01) C03C 3/253 (2006.01) C03C 4/20 (2006.01)
Patent
CA 2509113
Abstract The invention relates to nitride glass with the general formula axbygz, wherein a is a glass modifier comprising at least one electropositive element, b comprises Si, B, Ge, Ga and/or Al, and g is N or N together with O, whereby the atomic ratio of O:N is in the interval from 65:35 to 0:100, a method for preparing a nitride glass and the use of the glass. The results clearly shows that the physical and mechanical properties of oxide glasses such as hardness, elastic modulus, fracture toughness, and glass transition temperature are improved/increased, when the atomic structure of the network is strengthened by replacing oxygen atoms bAbstract The invention relates to nitride glass with the general formula axbygz, wherein a is a glass modifier comprising at least one electropositive element, b comprises Si, B, Ge, Ga and/or Al, and g is N or N together with O, whereby the atomic ratio of O:N is in the interval from 65:35 to 0:100, a method for preparing a nitride glass and the use of the glass. The results clearly shows that the physical and mechanical properties of oxide glasses such as hardness, elastic modulus, fracture toughness, and glass transition temperature are improved/increased, when the atomic structure of the network is strengthened by replacing oxygen atoms by nitrogen atoms. Further, the results show that a very high refractivity index could be achieved.
L'invention concerne un verre de nitrure représenté par la formule générale .alpha.¿x?.beta.¿y?.gamma.¿z?, dans laquelle .alpha. est un modificateur de verre comprenant au moins un élément électropositif, .beta. comprend Si, B, Ge, Ga et/ou Al, et .gamma. est N ou N conjointement avec O, le rapport atomique O:N étant compris entre 65:35 et 0:100. L'invention concerne également un procédé de préparation d'un verre de nitrure ainsi que l'utilisation de ce verre. Les résultats montrent clairement que les propriétés physiques et mécaniques des verres d'oxyde, telles que la dureté, le module d'élasticité, la ténacité et la température de transition vitreuse, sont améliorées lorsque la structure atomique du réseau est renforcée par remplacement des atomes d'oxygène par des atomes d'azote. En outre, ces résultats montrent qu'il est possible d'obtenir un indice de réfraction très élevé.
Diamorph Ab
Fetherstonhaugh & Co.
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