A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ceramics and glass ceramics exhibiting low or negative thermal expansion
Ceramics and glass-ceramics have low and/or negative coefficients of thermal expansion. Crystalline phases of the formula AM2Si2-yGeyO7 (A=Sr and Ba and M=Zn, Mg, Ni, Co, Fe, Cu, Mn, with Sr, Ba and Zn necessarily having to be present) can be produced by conventional ceramic processes or by crystallization from glasses. The compositions form solid solutions, where the elements indicated as component M can be replaced by one another in virtually any concentration but the concentration of Zn must always be at least 50% of the sum of all components indicated under M. The stoichiometry of these silicates and also their structure can differ to a greater or lesser extent.
Ceramics and glass ceramics exhibiting low or negative thermal expansion
Ceramics and glass-ceramics have low and/or negative coefficients of thermal expansion. Crystalline phases of the formula AM2Si2-yGeyO7 (A=Sr and Ba and M=Zn, Mg, Ni, Co, Fe, Cu, Mn, with Sr, Ba and Zn necessarily having to be present) can be produced by conventional ceramic processes or by crystallization from glasses. The compositions form solid solutions, where the elements indicated as component M can be replaced by one another in virtually any concentration but the concentration of Zn must always be at least 50% of the sum of all components indicated under M. The stoichiometry of these silicates and also their structure can differ to a greater or lesser extent.
Ceramics and glass ceramics exhibiting low or negative thermal expansion
THIEME CHRISTIAN (author) / RUESSEL CHRISTIAN (author)
2019-12-10
Patent
Electronic Resource
English
CERAMICS AND GLASS CERAMICS EXHIBITING LOW OR NEGATIVE THERMAL EXPANSION
| European Patent Office | 2018
Preparation and properties of negative thermal expansion Zr2WP2O12 ceramics
| British Library Online Contents | 2009
Translucent low-thermal expansion ceramics
| British Library Online Contents | 1996
- LASER WELDING OF HIGH THERMAL EXPANSION GLASSES AND GLASS-CERAMICS
| European Patent Office | 2016
LASER WELDING OF HIGH THERMAL EXPANSION GLASSES AND GLASS-CERAMICS
| European Patent Office | 2015