无码人h动漫中文字幕_日韩av免费一级毛片_熟女A∨午夜福利_少妇真实自偷自拍视频6_欧美在线看免费ⅴa_伊蕉在人线国产网站_尤蜜视频在线观看播放_HEYZO无码人妻少妇系列_亚洲综合Av一二三区_久久三级片免费看

Research
Material specification
材料規(guī)格書

Kovar alloy

Material Description: The material has a coefficient of expansion close to that of glass materials (coefficient of expansion: 5~6 μm/(m·°C)), which makes it suitable for application scenarios such as sealing and mounting with glass, and chip mounting.


Element composition:

C

Ni

Co

Cr

Mn

Si

Mo

Fe

0.03

29±0.5

17.3±0.5

0.2

0.5

0.3

0.2

Bal.


Physical properties:

Properties

Unit

可伐合金(Kovar

Density ρ

g/cm3

>7.8

Hardness

Hv

160

Tensile strength Rm

MPa

400

Yield strength Rp0.2

MPa

200

Elongation A10

%

10

Thermal conductivity

W/(m·℃)

21.4

Coefficient of thermal expansion

20~200

μm/(m·℃)

5.6


Metallography (×200)



  • Tel:+(86)571-8717-7655
  • Fax:+(86)571-8717-7511
  • Email:Marketing@sinomimtech.com
  • Add:No.1, No.16 Street, Hangzhou Economic and Technological Development Zone, Zhejiang Province