sic material and technology for space optics

POCO GRAPHITE, INC.

Chemical Vapor Converted SiC as a Beryllium Substitute Material for EKV Amount: $749,517.00 In support of the Raytheon EKV program, Poco Graphite, Inc. has prepared a Phase II proposal entitled "Chemical Vapor Converted SiC as a Beryllium Substitute Material for EKV".

Smart Optics for ESA Space Science Missions

1 Smart Optics for ESA Space Science Missions Dr. Ph. Gondoin (ESA) • Gaia, JWST, Darwin • Scientific objectives • Payload description • Optical technology developments ESA's IR and visible astronomy missions JWST Planck Herschel Eddington GAIA

Space Telescopes, lightweight materials, cryogenic operation

History of SiC • Largest telescope mirror in space – ESA Herschel PM, 3.5m • Seems to be working well for GAIA – ESA 1.5m astrometric mission, all SiC • Small instruments successful – EO-1 [mirrors, SiC structure didn't work out, used Al]

SIC material and technology for space optics

2017/11/1SIC material and technology for space optics Bougoin, Michel Abstract Taking benefit from its very high specific stiffness and its exclusive thermal stability, the SiCSPACE material is now used for the fabrication of scientific and This paper gives a review of the

Deformable Mirror Technologies AOA Xinetics

Strategic Business Units (SBUs) 3 Adaptive Optics Associates / Xinetics (AOX) – Cambridge / Devens, MA • Beam Control / Deformable Mirrors / Wavefront Sensors / Micro-Optics • Precision SiC Optics/Structures • EO Systems Development / Contract Manufacturing for Commercial and

Optics Imaging for Aerospace Applications

CoorsTek silicon carbides (SiC) are engineered and optimized specifically for optics and imaging applications which demand high stiffness, low mass, and thermal stability. Our silicon carbides are ideally suited for mirrors, focal plane array components, and structural supports used in aerospace and specialized ground-based optical systems.

Smart Optics for ESA Space Science Missions

1 Smart Optics for ESA Space Science Missions Dr. Ph. Gondoin (ESA) • Gaia, JWST, Darwin • Scientific objectives • Payload description • Optical technology developments ESA's IR and visible astronomy missions JWST Planck Herschel Eddington GAIA

ChemImage Awarded a Phase I SBIR Grant to Study SiC

2007/12/7ChemImage, a leader in Chemical Imaging technology, recently received an SBIR Phase I grant for studying Silicon Carbide (SiC) based materials for space-based optics. This Phase I grant will fund a ChemImage research and development project to study the chemical composition, crystalline structure, stress/strain, and subsurface damage to SiC-based substrates and optics.

Advancing aerospace materials

Airbus Defence and Space's unique expertise in the field of silicon carbide is revolutionising space optics while expanding Europe's technology base. The largest mirrors in space "It started in the 1990s: astronomical telescopes were becoming larger and we needed a new material to reduce the mirror weight," explains Airbus Defence and Space's Emmanuel Sein.

Hydroxide catalysis bonding for astronomical instruments

2014/6/1Hydroxide catalysis bonding (HCB) as a jointing technique has been under development for astronomical applications since ∼1998 (patented by D.-H. Gwo). It uses an aqueous hydroxide solution to form a chemical bond between oxide or oxidisable materials (e.g., SiO 2, sapphire, silicon and SiC). It forms strong, extremely thin bonds, and is suitable for room temperature bonding, precision

Terahertz Dual Polarizations Offset Reflector Antenna Using Sic And CFRP Material

Antenna Using Sic And CFRP Material Wang Hongjian 1, Yi Min1 1 National Space Science Center,Beijing,100190,China Abstract - The high gain offset reflector antennas for dual polarizations terahertz application are proposed. The two reflector antennas

The SiC primary mirror of the EUCLID telescope

2017/9/25II. BOOSTEC SiC MATERIAL FOR SPACE OPTICS MERSEN BOOSTEC manufactures a sintered silicon carbide which is named Boostec SiC.Its key properties are a high specific stiffness (420 GPa/3.15 g.cm-3) combined with a high thermal stability (180 W.m-1.K-1 /2.2. 10-6 K-1).

OSA

The Japan Aerospace Exploration Agency has studied a large-scale lightweight mirror constructed of reaction-bonded silicon carbide-based material as a key technology in future astronomical and earth observation missions. The authors selected silicon carbide as the promising candidate due to excellent characteristics of specific stiffness and thermal stability. One of the most important

SIC material and technology for space optics

2017/11/21The S-SiC that is now manufactured by Boostec for space optics has been processed by Cramiques Composites during 15 years. It is commonly used as a friction material in the pumps of the chemical engineering industry and, for example, in the mechanical seals of the water cooling pumps of the automotive industry.

Space Telescopes, lightweight materials, cryogenic operation

History of SiC • Largest telescope mirror in space – ESA Herschel PM, 3.5m • Seems to be working well for GAIA – ESA 1.5m astrometric mission, all SiC • Small instruments successful – EO-1 [mirrors, SiC structure didn't work out, used Al]

SiC Optics

There are many different types of SiC and dozens of SiC material manufacturers around the word. AOS works with all different types of SiC and draws materials from many suppliers around the world. Therefore, you don't need to worry about getting restricted to a specific brand.

Diffusion

Trex CVC SiC surpasses RB-SiC in all relevant material properties, including achievable surface figure accuracy. Trex, in collaboration with Advanced Bonding Technology (ABT), has developed a hybrid joining process whereby CVC SiC components are bonded together to make large optical assemblies or complex structures with the same thermal performance as the base SiC material — a type of

REVIEW ARTICLE Materials for terahertz science and technology

technology is an extremely attractive research field,with interest from sectors as diverse as the semiconductor, medical,manufacturing,space and defence industries. Several recent major technical advances have greatly extended the potential and profile ofTHz 1

Fine Ceramics in Space

, one of the leading ceramic manufacturers, presents its products relevant to aerospace and astronomy applications at Space Tech Expo 2019 in Bremen from November 19th-21st. Kyoto/London – During Space Tech Expo 2019, will showcase, amongst other materials and components, its specializations in cordierite, silicon-infiltrated silicon carbide, alumina and zirconia materials

Advanced protection against environmental degradation

2021/2/20Protection of silver mirror stacks from environmental degradation before launching is crucial for space applications. Hereby, we report a comparative study of the advanced protection of silver mirror stacks for space telescopes provided by SiO 2 and Al 2 O 3 coatings in conditions of accelerated aging by sulfidation.

Optimizations of Pt/SiC and W lSi multilayers for the Nuclear Spectroscopic Telescope Array.

Optimizations of Pt/SiC and W lSi multilayers for the Nuclear Spectroscopic Telescope Array. Kristin K. Madsen, Fiona A. Harrison and Peter H. Mao a. Finn E. Christensen, Carsten P. Jensen and Nicolai Brejnholt b. Jason Koglin c. Michael J. Pivovaroff d.

Fundamentals of Silicon Carbide Technology: Growth,

A comprehensive introduction and up-to-date reference to SiC power semiconductor devices covering topics from material properties to applications Based on a number of breakthroughs in SiC material science and fabrication technology in the 1980s and 1990s, the first SiC Schottky barrier diodes (SBDs) were released as commercial products in 2001. The SiC SBD market has grown significantly since

Diffusion

Trex CVC SiC surpasses RB-SiC in all relevant material properties, including achievable surface figure accuracy. Trex, in collaboration with Advanced Bonding Technology (ABT), has developed a hybrid joining process whereby CVC SiC components are bonded together to make large optical assemblies or complex structures with the same thermal performance as the base SiC material — a type of

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