Forsterite
Knowledge of Forsterite (Feature, Property, Uses etc)
高温高周波絶縁材で、熱膨張率が大きいセラミックス
- 名称フォルステライト
- 英名Forsterite
- 化学式2MgO・SiO2
- 備考白～淡黄色。 表面が滑らか。
フォルステライトセラミックスの物性値
| 単位 | 物性値 | |
|---|---|---|
一般物性 |
||
| かさ比重 | g/cm3 | 2.8 - 3.5 |
機械的性質 |
||
| 曲げ強さ | MPa | 145 - 200 |
| 圧縮強さ | MPa | 1150 |
| ヤング率 | MPa | |
| ビッカーズ硬度 | HV | 6.8 - 8.5 |
電気的性質 |
||
| 体積抵抗率 | Ω・cm | > 1014 |
| 絶縁破壊電圧 | kV/mm | 10 - 17 |
| 誘電率 | ε(1MHz) | 6.5 - 6.7 |
熱的性質 |
||
| 最高使用温度 | ℃ | 900 |
| 熱膨張係数 | ×10-6/℃ | 10 |
| 熱伝導率 | W/m•k | 3.3 - 5.0 |
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