MatWeb - Material Property Data 用 MatWeb 登广告!    Register Now
越过59,000 以上, 金属、塑料、陶瓷和合成物的数据资料库。
MatWeb - Material Property Data 主页  •  搜寻  •  工具  •  供应商  •  文件夹  •  有关我们  •  常用问题  •  登录   •  English English English 
  搜寻方法:  高级先进 | 材料类型 | 特性 | 构成份  | 商标  | 制造商
    Search

Subscribe to FREE Trade Publications!

Brush Wellman E20 Beryllium/BeO Composite, 20 Volume% BeO

 

Subcategory: Metal Matrix Composite; Nonferrous Metal; Beryllium Alloy

Key Words: Metal Matrix Composites (MMCs), Electronic Material

Material Notes:
Beryllium content above calculated as remainder and includes content from BeO. Metal matrix composite made up principally of beryllium and crystal BeO platelets. Produced by blending the beryllium and beryllium oxide powders into a homogeneous mixture to create isotropic properties. This mix is hot isostatically pressed (HIP'd) into fully dense blocks for further processing into finished blanks and subsequent machining into components.

These materials are used in electronic packaging heatsinks for MCM-L, SEM-E, BGA's, and RF/Microwave applications. The CTE can be controlled by varying the BeO content to match with die materials like GaAs or silicon in RF/microwave applications or match AuSn or AuGe over brazing/soldering temperatures, Kovar, Alloy 46 or 48, and other packaging materials.

Can be machined by conventional processes. Corrosion resistance similar to aluminum. For protection in severe environments such as salt fog, the composite may be coated in a number of ways such as electroless or electrolytic nickel plating, chrome plating, and gold or silver plating for brazing or soldering operations.

Please note that there are health hazards associated with beryllium, especially when present as airborne particles generated during processing. As with any material, be aware of hazards and take steps to reduce exposure to a safe level.

Information provided by Brush Wellman.

Available Properties
  • Density
  • Modulus of Elasticity
  • Fracture Toughness
  • CTE, linear 20°C
  • CTE, linear 250°C
  • Specific Heat Capacity
  • Thermal Conductivity
  
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
etc
), please click the button below.

<meta http-equiv=Content-Type content="text/html; charset=UTF-8">
请读关于材料数据的使用许可协议和我们的隐私权。询问或评论有关 MatWeb? 请与webmaster@matweb.com 联系。我们感谢您对 MatWeb的参与。

本站点由 Automation Creations, Inc. 设计和维护。这个网站的内容, MatWeb 的商标,与 "MatWeb" 由 Automation Creations, Inc.版权1996-2006拥有 。 MatWeb 意欲为个人使用 , 非商业用途。这个站点的内容、结果和技术数据,未经由 Automation Creations, Inc. 允许, 不可以被电子,摄影或实质上地再生产或自动化创作。