Negative thermal expansion materials including method of...

C - Chemistry – Metallurgy – 03 – C

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261/1, 261/22, 8

C03C 10/02 (2006.01) C04B 35/01 (2006.01) C04B 35/447 (2006.01) C04B 35/495 (2006.01) G02B 5/18 (2006.01) G02B 6/12 (2006.01)

Patent

CA 2332811

Negative thermal expansion materials, methods of preparation and uses thereof are disclosed. The materials are used for negative thermal expansion substrates, such as those used for optical fiber gratings. For example, the negative thermal expansion substrates are useful in optical fiber gratings having a fiber (24) attached to the substrate at points (39 and 32), and an intermediate fiber length (60) cushioned by a low modulus damping material (62).

Cette invention se rapporte à des matériaux à expansion thermique négative, à des procédés de préparation et aux utilisations de ces matériaux, lesquels peuvent servir dans des substrats à expansion thermique négative, tels que ceux utilisés pour les réseaux de fibres optiques.

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