O-30-H Beryllium Optical Grade

Alternative und Handelsbezeichungen
O-30-H

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Description

Materion’s O-30-H beryllium was originally developed to make the mirrors for the James Webb Space Telescope (JWST).

The unique combination of property characteristics make this material critical for expanding optical space applications. O-30-H was featured in Astro2010: The Astronomy and Astrophysics Decadal Survey, Technology Development Papers, no. 23. In Enabling Future Space Telescopes: Mirror Technology Review and Development Roadmap, Dave Baiocchi of RAND Corporation and H. Philip Stahl of NASA Marshall discuss O-30-H beryllium metal and the ways it advances space optics.

In addition to the low scatter optics of O-30-H, this metal is well suited for a variety of other space applications. With the highest thermal isotropy of any grade of the beryllium metals that we offer, it is a cryogenically optimal substrate material.

Diese Materialdaten wurden von Materion Brush GmbH zur Verfügung gestellt

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Eigenschaften

Allgemein

Property	Temperature	Value	Comment
Dichte	23.0 °C	1.85 g/cm³ Show Supplier Material materials with Dichte of 1.85 g/cm³	Theoretical density for BeO: 0.5%
Korngröße		15 μm Show Supplier Material materials with Korngröße of 15 μm	max., ASTM E-112

Mechanisch

Property	Temperature	Value	Comment
Dehnung	23.0 °C	2 % Show Supplier Material materials with Dehnung of 2 %	min.
Streckgrenze Rp 0,2	23.0 °C	207 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 207 MPa
Zugfestigkeit	23.0 °C	345 MPa Show Supplier Material materials with Zugfestigkeit of 345 MPa

Thermisch

Property	Temperature	Value	Comment
Koeffizient der thermischen Ausdehnung	23.0 °C	1.12E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.12E-5 1/K	overall average for 5-65°C

Chemical properties

Property	Value	Comment
Aluminium	0.07 % Show Supplier Material materials with Aluminium of 0.07 %	max.
Andere	0.04 % Show Supplier Material materials with Andere of 0.04 %	max., other metallic impurities each
Beryllium	99 % Show Supplier Material materials with Beryllium of 99 %	min., BeO: 0.5% max
Kohlenstoff	0.012 % Show Supplier Material materials with Kohlenstoff of 0.012 %	max.
Magnesium	0.07 % Show Supplier Material materials with Magnesium of 0.07 %	max.
Silizium	0.07 % Show Supplier Material materials with Silizium of 0.07 %	max.

Technological properties

Property
Application areas	It is used in space optical applications due to the lower level scatter and ease to polish. This beryllium metal was used in the primary optics for the James Webb Space Telescope.

O-30-H Beryllium Optical Grade

Description

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Anwendungen

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Eigenschaften