Imported Quartz Boat can be transparent or milky white. These Transparent Quartz Boat can withstand up to 1100 degree centigrade. It is most important to note that Quartz Boat can withstand very high thermal shock (1000 degree centigrade to room temperature).
The transparent Quartz Boat is obtained through different types of raw materials because that includes natural or synthetic quartz sand. These are highly resistant to thermal shock due to the extremely low coefficient of thermal expansion because they have excellent electrical strength that offers stability under temperature variation.
Our range of Quartz Boat is developed in our company by using high purity fused quartz as raw material and fabricating with advanced ceramic technology.
Thermal Properties of Quartz Boat
| Thermal Conductivity | 1.38(W/m°K) |
| Coefficient Of Thermal Expansion(0~1000 °C) | 0.55(10 -6/ °C) |
| Normal Operating Temperature (Continuous Usage) | ~1050 °C |
| Normal Operating Temperature (Non Continuous Usage) | ~1250 °C |
| Strain Point | ~1075 °C |
| Annealing Point | ~1180 °C |
| Hot Pressing Temperature | ~1700 °C – 2100 °C |
| Devitrification Temperature | Starting at ~1000 ° C. high temperature accelerates Devitrification, especially with surface contaminants such as alkaline solution, salts and vapours. |
Physical Properties of Quartz Boat
| Units of Measure | Value | |
| Density | gm/cc (lb/ft3) | 2.2 |
| Porosity | %(%) | 0 |
| Tensible Strength | 106 Pa | 48.3 |
| Young’s Modulus | 106 Pa | 71.7 |
| Hardness | kg/mm2 | 600 |
| Thermal Conductivity | W/m°K | 1.38 |
| Coefficient of Thermal Expansion | 10-6/°C | 0.55 |
| Specific Heat | J/Kg°K | 740 |
| Dieletric Strength | Ac-kv/mm (volts/mil) | 30 |
| Dieletric Constant | @1MHz | 3.82 |
| Index of refraction @ 587.6nm | — | 1.4585 |
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