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材料属性
| 属性 | 502-600 | 502-800 | 502-900 | 502-1100-UF | 502-1100-FF | 502-1400-BF | 502-1600¹ |
|---|
| 组成-纯度 | 玻璃陶瓷 | Macor玻璃陶瓷 | CS-85硅酸钙 | 未烧结铝硅酸盐 | 完全烧结铝硅酸盐 | 96%铝土矿 | 99%氮化硼 |
| 热性质 | | | | | | | |
| 最大使用温度 | | | | | | | |
| 氧化气氛, ºF (ºC) | 1100 (593) | 1472 (800) | 1800 (1000) | 1000 (537) | 2100 (1150) | 2600 (1427) | 1650 (900) |
| 真空环境, ºF (ºC) | 1100 (593) | 1472 (800) | 1800 (1000) | 1000 (537) | 2100 (1150) | 2600 (1427) | 3270 (1800) |
| 惰性气氛, ºF (ºC) | 1100 (593) | 1472 (800) | 1800 (1000) | 1000 (537) | 2100 (1150) | 2600 (1427) | 3990 (2200) |
| 热膨胀系数 | | | | | | | |
| in/in/ºF x 10^-6 (ºC) | 5.8 (10.5) | 7.0 (12.6) | — | 2.5 (4.5) | 2.9 (5.2) | 3.5 (6.3) | 0.2 (0.3) |
| 热导率 | | | | | | | |
| W/m-K | 1.3 | 1.5 | 0.3 | 1.6 | 1.3 | 4.3 | 50 |
| 机械性质 | | | | | | | |
| 压缩强度, psi (MPa) | 32,000 (221) | 50,000 (345) | 10,300 (71) | 12,000 (83) | 25,000 (172) | 9,000 (62) | 12,300 (85) |
| 弯曲强度, psi (MPa) | 11,000 (72.9) | 13,600 (94) | 3,000 (21) | 4,000 (28) | 10,000 (69) | 4,000 (28) | 5,075 (35) |
| 硬度, Rockwell A | 47 | 48 | — | 39 | 45 | 42 | 19 |
| 电气性质 | | | | | | | |
| 体积电阻率, ohm-cm | 1 × 10¹² | 1 × 10¹⁷ | 4.5 × 10¹² | 1 × 10¹⁴ | 1 × 10¹⁴ | 1 × 10¹⁴ | > 1 × 10¹⁴ |
| 介电强度, volts/mil | 380 | 785 | 61 | 80 | 100 | 80 | 865 |
| 介电损耗, 1 MHz | 0.012 | ~0.005 | — | 0.06 | 0.053 | 0.003 | < 0.0002 |
| 介电常数, 1 MHz | 6.8 | ~6.0 | — | 5.8 | 5.3 | 5.5 | 4 |
| 物理性质 | | | | | | | |
| 密度, g/cc | 2.80 | 2.52 | 1.36 | 2.60 | 2.30 | 3.00 | 2.00 |
| 吸水率, % | 0.0 | 0.0 | — | 2.5 | 2.3 | 25 | — |
