氧化铝陶瓷性能指标
项目 | 测试条件 | 材料牌号 | |||||
A-75 | A-90 | A-95 | A-99 | A-99.5 | |||
体积密度 |
| >3.2 | >3.40 | >3.60 | >3.70 | >3.75 | |
抗折强度 |
| 2000 | 2300 | 2800 | 3000 | 3000 | |
线膨胀系数 | 20-100℃ | ≤6 | - | - | - | - | |
20-500℃ | - | 6.3-7.3 | 6.5-7.5 | 6.5-7.5 | 6.5-7.3 | ||
20-800℃ | - | 6.3-7.3 | 6.5-8 | 6.5-8 | 6.5-8 | ||
导热系数 |
| - | - | - | - | - | |
介电常数 dielectric constant | 1 MHz 20℃ | ≤9 | 9-10 | 9-10 | 9-10.5 | 9-10.5 | |
500℃ | - | - | 9-10 | - | - | ||
10GHz 20℃ | - | 9-10 | 9-10 | 9-10.5 | - | ||
介质损耗角正切值The dielectric loss tangent values
| 1 MHz 20℃ | ≤10 | ≤6 | ≤4 | ≤2.5 | ≤1.5 | |
500℃ | - | -30-40 | - | - | - | ||
10GHz 20℃ | - | - | ≤10 | ≤6 | - | ||
体积电阻率Volume resistivity
| 100℃ | >1012 | >1013 | >1013 | >1013 | >1014 | |
300℃ | - | >1010 | >1010 | >1010 | >1012 | ||
500℃ | - | - | 108 | 109 | 1010 | ||
击穿强度disruptive strength |
| 20 | 15 | 15 | 15 | 15 | |
化学稳定性 | 1:9Hcl | - | - | ≤7.5 | ≤0.7 | - | |
10%NaOH | - | - | ≤0.2 | ≤0.1 | - | ||
气孔率 | - | - | - | - | - | 15-30 |
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수입신고 1USD |
구매/결제대행 1CNY |
TT송금 1CNY |
---|---|---|
6.95 CNY | 199.59 KRW | 0.149 USD |