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Material: 95%
alumina
Specification:
A: Wave Tube (UNIT: MM):
1.¦µ240X200 2.¦µ150X200 3.¦µ140X183 4.¦µ125X183 5.¦µ110X183
6.¦µ103X183 7.¦µ102X183 8.¦µ98X96 9.¦µ80X165 10.¦µ75X165
11.¦µ75X149 12.¦µ75X120 13.¦µ68X125
B: Straight Tube (UNIT: MM):
1.¦µ250X500 2.¦µ160X200 3.¦µ155X183 4.¦µ152.4X14 5.¦µ150X183
6.¦µ140X183 7.¦µ110X183 8.¦µ103X183 9.¦µ100X100 10.¦µ90X65
11.¦µ82X120 12.¦µ82X100 13.¦µ60X120 |
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volumn density |
¡Ý3.6g/cm3 |
| bending strength |
¡Ý275MPa |
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breakdown voltage |
£¾15KV/mm |
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dielectric constant |
1MHz 20¡æ 9¡«10 |
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volumn resistance |
£¾1013¦¸¡¤cm |
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coefficient of linear expansion |
6.5¡«8¡Á10-6mm/¡æ |
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dielectric loss tange at 1MHz 20
¡æ |
£¼3.0¡Á10-4 |
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Heat and shock resistance |
Pass |
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metallization tensile strength |
¡Ý90MPa |
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Practice£ºThis kind
of ceramic crust is a main part of high voltage electronic vacuum
switch,
contactor,X-ray tube, thyratron and high power ultra-high frequency
emission tube in power and electronic industry, etc. |
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