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Tecnología de producción de componentes ópticos con superficies de formato libre y precisión L/40 basados en cerámicas ópticas nanoestructuradas de carburo de silicio

Resumen

Tipo:
Oferta Tecnológica
Referencia:
10 RU 86FG 3HMY
Publicado:
24/06/2015
Caducidad:
04/01/2016
Resumen:
Un centro tecnológico ruso especializado en investigación y desarrollo de materiales de composite basados en carburo de silicio para producir espejos ópticos busca organismos de I+D y empresas de ingeniería y construcción de maquinaria. El objetivo es completar e implementar una tecnología de producción de componentes ópticos de gran tamaño con superficies de formato libre y precisión L (lambda)/40 basados en cerámicas ópticas nanoestructuradas de carburo de silicio. Los parámetros de masa y dimensión de estos componentes ópticos permiten su aplicación en sistemas de ingeniería espacial.

Details

Tittle:
Production technology for silicone carbide-based nanostructured optical ceramics and optical components based on it, containing free form surfaces within the accuracy of L/40
Summary:
A Technology Transfer Centre from Saint-Petersburg performs R&D works related to the silicone carbide-based composite materials for development of optical mirrors.
The Centre is looking for partners among R&D institutions, engineering and machine building companies to finalise and implement the technology for production of large-sized optical components containing free-form surfaces within the accuracy of L(lambda)/40 based on silicone carbide-based nanostructured optical ceramics.
Description:
The Technology Centre studies various composite materials obtained by different technologies in application to optical instrument engineering; optimizes the processing procedures; develops methods for studying, processing and testing these materials. The research involves analysis of the technologies for making large optical elements of silicone carbide, testing of material properties that affect the operational features by using the methods of classical microscopy and methods of Raman spectrum study, analysis of composite material processing methods to obtain high precision optical surfaces.
The centre has developed:
a) a production technology for silicone carbide-based nanostructured optical ceramics;
b) optical parts' automatic processing technology allowing achievement of high precision for free form mirrors.
The technology under development allows production of large-sized optical components containing free form surfaces within the accuracy of L/40 with stable optical characteristics within the wide range of temperatures. Mass and dimension parameters of such optical components produced on the basis of silicone carbide allow using them for space engineering systems.
Physical properties of the material allow production of optical components with the working surface of free form providing its stable features within the wide range of temperatures, design of large-sizes space optical systems having mass and dimension parameters of the required level.


Current and Potential Domain of Application: Production of telescopes and optical systems of new generation
Current and Potential Domain of Application
Production of telescopes and optical systems of new generation
Advantages and Innovations:

The composite material would enable to obtain optically precise arbitrary shaped surfaces with the following characteristics:
Form precision: L/40 for L=0.633 micrometer;
Roughness: 5-6 angstrom.
The material shall have the following physical characteristics:
Density, 3.05E3 kg/m3
Young's Modulus E: 400 GPa
Specific stiffness: 13E6 m
Thermal conductivity: 185 Watt/m·K
Temperature coefficient of linear expansion alpha: 2.5 E-6 1/K
Temperature stability alpha/lambda: 1.4 E-8 m/Watt.
Stage of Development:
Under development/lab tested
IPs:
Secret know-how

Partner sought

Type and Role of Partner Sought:
- Type of partner sought: R&D, high-tech companies
- Specific area of activity of the partner: Material science, materials technology, optical technologies
- Task to be performed by the partner sought: joint finalisation and further industrial implementatio of the silicone carbide-based materials technology for production of optical mirrors/ large-size mirrors processing
Type of Partnership Considered:
Absolutely novel process
Adaptation to specific needs
Joint further development
New way to use an existing production line
Transfer of knowledge in new raw materials

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
No

Keywords

Technology Keywords:
09001006 Ensayos de material óptico
02007012 Materiales ópticos
02002011 Mecanizado fino (triturado, lapeado)
09001007 Tecnología óptica relacionada con la realización de medidas