Mullite
Knowledge of Mullite (Feature, Property, Uses etc)
耐熱・耐熱衝撃性に優れたエコノミーなセラミックス
- 名称ムライト
- 英名Mullite
- 化学式3Al2O3・2SiO2 （※酸化アルミニウムと二酸化ケイ素の化合物。）
- 備考白～灰褐色。
ム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 | 2.7 - 3.0 |
機械的性質 |
||
| 曲げ強さ | MPa | |
| 圧縮強さ | MPa | |
| ヤング率 | MPa | |
| ビッカーズ硬度 | HV | 1100 |
電気的性質 |
||
| 体積抵抗率 | Ω・cm | >108-14 |
| 絶縁破壊電圧 | kV/mm | |
| 誘電率 | ε(1MHz) | 6.5 |
熱的性質 |
||
| 最高使用温度 | ℃ | 1200 - 1600 |
| 熱膨張係数 | ×10-6/℃ | 4.2 - 5.6 |
| 熱伝導率 | W/m•k | 3.8 - 5.0 |
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