Baking graphite crucible

After making the graphite crucible with your own hands, you need to bake it properly. This process will strengthen the structure of the crucible and give it the properties required for high-temperature experiments.

It is important to understand that baking a crucible is a complex process that requires strict adherence to certain recommendations. Otherwise, the crucible may be damaged or malfunctioned.

Step 1: Before baking the crucible, you need to drain it. To do this, place the crucible in a special drying oven and keep the temperature at about 200 degrees Celsius for several hours. This step is necessary to remove moisture and other substances in the crucible that may negatively affect the quality of the material.

Step 2: After drying the crucible, it must be heated to working temperature. This is usually around 800-1000 degrees Celsius. It is important to remember that the crucible must be heated slowly and evenly to avoid cracks.

Step 3: After the crucible reaches the required temperature, it needs to be maintained for a certain period of time. This usually takes several hours. It is important to ensure even heating and avoid sudden changes in temperature.

Step 4: After baking, the crucible must gradually cool down. For this, use special tools to avoid sudden temperature changes or mechanical damage.

Proper baking of graphite crucibles ensures their durability and reliable operation under high temperature conditions. If you follow all the recommendations, you can get a high-quality crucible that will last for a long time.